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Switching Regulator - Switching Regulators 
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/content/maximintegrated/en/products/power/switching-regulators 
Our high-efficiency DC-DC switching regulator ICs generate less heat, consume less current and require less board space than other solutions, enabling more robust operation and longer battery life. Switching regulator circuits use a power switch, an inductor, and a diode to transfer energy from input to output. The basic components of the switching circuit can be rearranged to form a step-down (buck) converter, a step-up (boost) converter, or an inverter (flyback). Feedback and control circuitry can be added to regulate the energy transfer and maintain a constant output. Our wide selection of DC-DC converters offer high switching frequencies, very efficient internal switching elements, wide input voltage ranges, and built-in circuit protection to support a broad range of applications.
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Featured Products
MAX77801
The MAX77801 is a high-current, high-efficiency buck-boost targeted to mobile applications that use a Li-ion battery or similar chemistries. The MAX77...
MAX77596
This small, synchronous buck converter with integrated switches can deliver up to 300mA with input voltages from 3.5V to 24V, while using only 1.1μA q...
MAX77231
Compact boost with only 35µVRMS ripple and noise.
MAX17242
Reliable Operation (42V Input Transient Protection), Long Battery Life (15µA IQ) and EN55022 EMI Performance.
MAX77801
The MAX77801 is a high-current, high-efficiency buck-boost targeted to mobile applications that use a Li-ion battery or similar chemistries. The MAX77...
MAX77596
This small, synchronous buck converter with integrated switches can deliver up to 300mA with input voltages from 3.5V to 24V, while using only 1.1μA q...
MAX77231
Compact boost with only 35µVRMS ripple and noise.
MAX17242
Reliable Operation (42V Input Transient Protection), Long Battery Life (15µA IQ) and EN55022 EMI Performance.
Latest Products
MAX38889 2.5V–5.5V, 3A Reversible Buck/Boost Regulator for Backup Power Applications
- 2.5V to 5.5V System Output Voltage Range
- 0.5V to 5.5V Supercapacitor Voltage Range
- ±1% Threshold Accuracy
- 2.5% Hysteresis between Backup and Charging
- 1A to 3A Peak Inductor Current Limit
- Peak Inductor Current Is Pin-Programmable over 1A to 3A through External Resistor
- 94% Peak Efficiency, Charging or Discharging Mode
- 4µA Quiescent Current in Ready State
- After Supercapacitor Is Charged, Draws only 4µA of Quiescent Current
- Ready and Backup State Outputs
- RDY and BKB Flags Provide Real-Time Status to System
- 3mm x 3mm, 16-Pin TQFN Package
MAX25203 Dual-Phase Synchronous Boost Controller with Programmable Gate Drive and I2C
The MAX25203 automotive dual-phase synchronous boost controller enables infotainment systems to ...
- Meets Stringent OEM Module Power Consumption and Performance Specifications
- ±1.5% Output-Voltage Accuracy at FB
- Output Voltage Adjustable Between 12V and 65V (70V Abs Max)
- 5µA Shutdown Supply Current
- High Efficiency and Current Sharing
- Pass-Through for >98% Efficiency
- OTP Gate Drive Voltage from 6.5V to 10V Allows User to Optimize External MOSFETs and Improve Efficiency
- Current Sharing Accuracy of ±5% Between Phases to Improve System Efficiency
- Programmable Current-Limit Blanking Handles High Peak Loads without Oversizing Inductor
- EMI-Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range
- Spread-Spectrum Option
- On-the-Fly Frequency-Synchronization Input
- Resistor-Programmable Frequency between 220kHz and 2.1MHz
- Synchronization Output Provides 90° Out-of-Phase Clock for Quad-Phase Operation
- Integration and Thermally Enhanced Package Saves Board Space and Cost
- Current-Mode Controllers with Forced-Continuous and Skip Modes
- Side-Wettable, 32-Pin TQFN-EP Package
- Protection Features and I2C Diagnostics for Improved System Reliability
- Supply Undervoltage Lockout
- Die Temperature Monitoring through I2C
- Short-Circuit Protection with True ShutdownTM
- Individual Phase Current Monitoring through I2C
MAX20012B Automotive Low-Voltage 2-Channel Step-Down Controller
The MAX20012B is a dual-output, high-efficiency synchronous step-down controller IC that operate...
- 2-Channel High-Efficiency DC-DC Controller in a Small Solution Size
- 3.0V to 5.5V Operating Supply Voltage
- OUT1 Supports 24A (with Two Phases)
- OUT2 Supports 12A
- High-Precision Regulator for Applications Processors
- ±2% Output-Voltage Accuracy
- Differential Remote Voltage Sensing
- I2C-Controlled Output Voltage: 0.5V to 1.27V in 10mV Steps
- 0.625V to 1.5875V in 12.5mV Steps
- Excellent Load-Transient Performance
- Low-Noise Features Reduce EMI
- 2.2MHz Operation
- Spread-Spectrum Option
- Frequency-Synchronization Input/Output
- Current-Mode, Forced-PWM, and Skip Operation
- Robust for the Automotive Environment
- Individual Enable Inputs and PGOOD Outputs
- Low RDS(ON) External FETs
- Overtemperature and Short-Circuit Protection
- 32-Pin (5mm × 5mm) TQFN with Exposed Pad
- -40°C to +125°C Operating Temperature Range
- AECQ-100 Qualified
MAX17573 4.5V to 60V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation
The MAX17573 is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with inte...
- Reduces External Components and Total Cost
- No Schottky-Synchronous Operation
- Internal Loop Compensation
- All-Ceramic Capacitors, Compact Layout
- Reduces Number of DC-DC Regulators to Stock
- Wide 4.5V to 60V Input
- Adjustable Output Voltage Range from 0.9V up to 90% of VIN
- 100kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
- Reduces Power Dissipation
- Peak Efficiency of 95.4% at VIN = 12V, VOUT = 5V at 500kHz Switching Frequency
- Pin-to-Pin Compatible with MAX17574, and Improved Efficiency through Superior Switching Performance compared to MAX17574
- PFM and DCM Modes Enable Enhanced Light-Load Efficiency
- Auxiliary Bootstrap Supply (EXTVCC) for Improved Efficiency
- 2.8μA Shutdown Current
- Operates Reliably in Adverse Industrial Environments
- Built-in Hiccup Mode Overload Protection
- Built-In Output-Voltage Monitoring with Active-Low RESET
- Programmable EN/UVLO Threshold
- Adjustable and Monotonic Startup with Prebiased Output Voltage
- Overtemperature Protection
MAX20402 Automotive 36V, 2.5A/3.5A, Fully Integrated Synchronous Buck Converters
The MAX20402/MAX20403 IC are tiny synchronous buck converters with integrated high-side and low-...
- Multiple Functions for Small Size
- Operating Input Voltage Range: 3V to 36V
- Synchronous DC-DC Converter with Integrated FETs up to 2.5A/3.5A
- 10μA Quiescent Current in Skip Mode
- 3MHz/2.1MHz/400kHz Switching Frequency
- Spread-Spectrum Option
- Fixed 2.5ms Internal Soft-Start
- Programmable 0.8V to 12V Output Voltage Range or Fixed 5V/3.3V Options Available
- 99% Duty Cycle Operation with Low Dropout
- High Precision for Safety Critical Applications
- ±1.5% Output Voltage Accuracy in FPWM
- Precision Enable Thresholds for Fully Programmable UVLO Thresholds
- Accurate Windowed PGOOD
- Robust for the Automotive Environment
- Average Current Mode, Forced-PWM, and Skip Operation
- Overtemperature, Overvoltage, and Short-Circuit Protection
- 3mm x 3mm FC2QFN
- -40°C to +125°C Operating Temperature Range
- 42V Load-Dump Tolerant
- AEC-Q100 Qualified
MAX20403 Automotive 36V, 2.5A/3.5A, Fully Integrated Synchronous Buck Converters
The MAX20402/MAX20403 IC are tiny synchronous buck converters with integrated high-side and low-...
- Multiple Functions for Small Size
- Operating Input Voltage Range: 3V to 36V
- Synchronous DC-DC Converter with Integrated FETs up to 2.5A/3.5A
- 10μA Quiescent Current in Skip Mode
- 3MHz/2.1MHz/400kHz Switching Frequency
- Spread-Spectrum Option
- Fixed 2.5ms Internal Soft-Start
- Programmable 0.8V to 12V Output Voltage Range or Fixed 5V/3.3V Options Available
- 99% Duty Cycle Operation with Low Dropout
- High Precision for Safety Critical Applications
- ±1.5% Output Voltage Accuracy in FPWM
- Precision Enable Thresholds for Fully Programmable UVLO Thresholds
- Accurate Windowed PGOOD
- Robust for the Automotive Environment
- Average Current Mode, Forced-PWM, and Skip Operation
- Overtemperature, Overvoltage, and Short-Circuit Protection
- 3mm x 3mm FC2QFN
- -40°C to +125°C Operating Temperature Range
- 42V Load-Dump Tolerant
- AEC-Q100 Qualified
MAX16731 30A,1.5 MHz, 2.7V to 16V, Step-Down Switching Regulator
The MAX16731 is a fully integrated, highly efficient, step-down DC-DC switching regulator. The r...
- High Power Density with Low Component Count
- Compact 2.52mm x 4.89mm, 45-Bump, WLP Package
- Internal Compensation
- Single Supply Operation with Integrated LDO for Bias Generation
- Wide Operating Range
- 2.7V to 16V Input Voltage Range
- 0.5V to 5.8V Output Voltage Range
- 500kHz to 1.5MHz Configurable Switching Frequency
- -40°C to +125°C Junction Temperature Range
- Three Programming Pins to Select Different Configurations
- Optimized Performance and Efficiency
- 91.2% Peak Efficiency with VDDH = 12V, VOUT = 1.2V, and fSW = 500kHz
- AMS to Improve Load Transient
- Selectable DCM to Improve Light Load Efficiency
- Differential Remote Sense
MAX17645 4.5V to 36V, 1A, High-Efficiency, Synchronous Step-Down DC-DC Converter
The MAX17645 is a high-efficiency, high voltage, synchronous step-down DC-DC converter with inte...
- Reduces External Components and Total Cost
- No Schottky—Synchronous Operation
- Internal Control Loop Compensation
- Internal Soft-Start
- All Ceramic Capacitors, Ultra-Compact Layout
- Reduces Number of DC-DC Regulators to Stock
- Wide 4.5V to 36V Input Voltage Range
- Adjustable Output from 0.9V up to 89% of VIN
- Delivers Up to 1A Load Current
- High Efficiency
- 90% Full-Load Efficiency (VIN = 24V, VOUT = 5V, IOUT = 1A)
- 2.2μA (typ) Shutdown Current
- High Light-Load Efficiency with PFM Mode (MAX17645D)
- Flexible Design
- Programmable EN/UVLO Threshold
- Monotonic Startup into Prebiased Output
- Open-Drain Output (Actiive-Low RESET) for Output Status Monitoring
- Robust Operation
- Built-In Hiccup Mode Overload Protection
- Overtemperature Protection
- CISPR32 Class B Compliant
- Wide -40°C to +125°C Ambient Operating Temperature/-40°C to +150°C Junction Temperature
MAX77839 5.5V Input, 4.4A/3.6A Switching Current 6μA IQ Buck-Boost Converter
The MAX77839 is a highly-efficient buck-boost regulator with an industry leading quiescent curre...
- Flexible System Integration
- 1.8V to 5.5V Input Voltage Range
- 2.3V to 5.3V Single Resistor Adjustable Output
- 3A Maximum Output Current
- 4.4A ILIM, See TOC 24 ("A" and "B" Options)
- 3.6A ILIM, See TOC 23 ("C" and "D" Options)
- 96% Peak Efficiency (VIN = 3.6V, VOUT = 3.3V)
- Optional GPIO Pin (FPWM Input, Active-Low POK Output)
- Low Supply Current that Extends Battery Life
- Skip Mode that Reduces Supply Current at Light Loads
- 6μA Ultra-Low IQ
- 2.2MHz (typ) Switching Frequency
- Integrated Protections that Provide System Robustness
- Undervoltage Lockout (UVLO)
- Overvoltage Protection (OVP)
- Cycle-by-Cycle Inductor Peak Current Limit
- Thermal Shutdown (TSHDN)
- Active Output Discharge
- Small Solution Size
- 2.07mm x 1.51mm, 0.4mm Pitch, 15-Bump WLP
- 2.5mm x 2.0mm, 0.5mm Pitch, 11-Pin FC2QFN
MAX17553 4V to 60V, 50mA, Ultra-Small, High Efficiency, Synchronous Step-Down DC-DC Converter
The MAX17553 is an ultra-small, high-efficiency, high voltage, synchronous step-down DC-DC conve...
- Reduces External Components and Total Cost
- No Schottky–Synchronous Operation
- Internal Control Loop Compensation
- Internal Fixed Soft-Start
- All-Ceramic Capacitors, Ultra-Compact Layout
- Reduces Number of DC-DC Regulators to Stock
- Wide 4V to 60V Input Voltage Range
- Adjustable Output Range from 0.8V up to 90% of VIN (MAX17553C)
- Delivers Up to 50mA Load Current
- 150kHz to 1.5MHz Adjustable Switching Frequency
- Reduces Power Dissipation
- 91.5% Full Load Efficiency (VIN = 24V, VOUT = 5V)
- Higher Light-Load Efficiency with Discontinuous-Conduction Mode (DCM) Operation
- Power Loss Reduction with External Boot-Strap Input (FB/VO) for Internal Circuitry (MAX17553A and MAX17553B only)
- 3.8μA Shutdown Current
- Flexible Design
- Programmable EN/UV and HYST Threshold
- Open-Drain Output Active-Low RESET for Output Status Monitoring
- Robust Operation
- Built-in Hiccup Mode Overload Protection
- Overtemperature Protection
- CISPR32 Class B Compliant
- Wide -40°C to +125°C Ambient Operating Temperature, -40°C to +150°C Junction Temperature
MAX38889 2.5V–5.5V, 3A Reversible Buck/Boost Regulator for Backup Power Applications
- 2.5V to 5.5V System Output Voltage Range
- 0.5V to 5.5V Supercapacitor Voltage Range
- ±1% Threshold Accuracy
- 2.5% Hysteresis between Backup and Charging
- 1A to 3A Peak Inductor Current Limit
- Peak Inductor Current Is Pin-Programmable over 1A to 3A through External Resistor
- 94% Peak Efficiency, Charging or Discharging Mode
- 4µA Quiescent Current in Ready State
- After Supercapacitor Is Charged, Draws only 4µA of Quiescent Current
- Ready and Backup State Outputs
- RDY and BKB Flags Provide Real-Time Status to System
- 3mm x 3mm, 16-Pin TQFN Package
MAX25203 Dual-Phase Synchronous Boost Controller with Programmable Gate Drive and I2C
The MAX25203 automotive dual-phase synchronous boost controller enables infotainment systems to ...
- Meets Stringent OEM Module Power Consumption and Performance Specifications
- ±1.5% Output-Voltage Accuracy at FB
- Output Voltage Adjustable Between 12V and 65V (70V Abs Max)
- 5µA Shutdown Supply Current
- High Efficiency and Current Sharing
- Pass-Through for >98% Efficiency
- OTP Gate Drive Voltage from 6.5V to 10V Allows User to Optimize External MOSFETs and Improve Efficiency
- Current Sharing Accuracy of ±5% Between Phases to Improve System Efficiency
- Programmable Current-Limit Blanking Handles High Peak Loads without Oversizing Inductor
- EMI-Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range
- Spread-Spectrum Option
- On-the-Fly Frequency-Synchronization Input
- Resistor-Programmable Frequency between 220kHz and 2.1MHz
- Synchronization Output Provides 90° Out-of-Phase Clock for Quad-Phase Operation
- Integration and Thermally Enhanced Package Saves Board Space and Cost
- Current-Mode Controllers with Forced-Continuous and Skip Modes
- Side-Wettable, 32-Pin TQFN-EP Package
- Protection Features and I2C Diagnostics for Improved System Reliability
- Supply Undervoltage Lockout
- Die Temperature Monitoring through I2C
- Short-Circuit Protection with True ShutdownTM
- Individual Phase Current Monitoring through I2C
MAX20012B Automotive Low-Voltage 2-Channel Step-Down Controller
The MAX20012B is a dual-output, high-efficiency synchronous step-down controller IC that operate...
- 2-Channel High-Efficiency DC-DC Controller in a Small Solution Size
- 3.0V to 5.5V Operating Supply Voltage
- OUT1 Supports 24A (with Two Phases)
- OUT2 Supports 12A
- High-Precision Regulator for Applications Processors
- ±2% Output-Voltage Accuracy
- Differential Remote Voltage Sensing
- I2C-Controlled Output Voltage: 0.5V to 1.27V in 10mV Steps
- 0.625V to 1.5875V in 12.5mV Steps
- Excellent Load-Transient Performance
- Low-Noise Features Reduce EMI
- 2.2MHz Operation
- Spread-Spectrum Option
- Frequency-Synchronization Input/Output
- Current-Mode, Forced-PWM, and Skip Operation
- Robust for the Automotive Environment
- Individual Enable Inputs and PGOOD Outputs
- Low RDS(ON) External FETs
- Overtemperature and Short-Circuit Protection
- 32-Pin (5mm × 5mm) TQFN with Exposed Pad
- -40°C to +125°C Operating Temperature Range
- AECQ-100 Qualified
MAX17573 4.5V to 60V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation
The MAX17573 is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with inte...
- Reduces External Components and Total Cost
- No Schottky-Synchronous Operation
- Internal Loop Compensation
- All-Ceramic Capacitors, Compact Layout
- Reduces Number of DC-DC Regulators to Stock
- Wide 4.5V to 60V Input
- Adjustable Output Voltage Range from 0.9V up to 90% of VIN
- 100kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
- Reduces Power Dissipation
- Peak Efficiency of 95.4% at VIN = 12V, VOUT = 5V at 500kHz Switching Frequency
- Pin-to-Pin Compatible with MAX17574, and Improved Efficiency through Superior Switching Performance compared to MAX17574
- PFM and DCM Modes Enable Enhanced Light-Load Efficiency
- Auxiliary Bootstrap Supply (EXTVCC) for Improved Efficiency
- 2.8μA Shutdown Current
- Operates Reliably in Adverse Industrial Environments
- Built-in Hiccup Mode Overload Protection
- Built-In Output-Voltage Monitoring with Active-Low RESET
- Programmable EN/UVLO Threshold
- Adjustable and Monotonic Startup with Prebiased Output Voltage
- Overtemperature Protection
MAX20402 Automotive 36V, 2.5A/3.5A, Fully Integrated Synchronous Buck Converters
The MAX20402/MAX20403 IC are tiny synchronous buck converters with integrated high-side and low-...
- Multiple Functions for Small Size
- Operating Input Voltage Range: 3V to 36V
- Synchronous DC-DC Converter with Integrated FETs up to 2.5A/3.5A
- 10μA Quiescent Current in Skip Mode
- 3MHz/2.1MHz/400kHz Switching Frequency
- Spread-Spectrum Option
- Fixed 2.5ms Internal Soft-Start
- Programmable 0.8V to 12V Output Voltage Range or Fixed 5V/3.3V Options Available
- 99% Duty Cycle Operation with Low Dropout
- High Precision for Safety Critical Applications
- ±1.5% Output Voltage Accuracy in FPWM
- Precision Enable Thresholds for Fully Programmable UVLO Thresholds
- Accurate Windowed PGOOD
- Robust for the Automotive Environment
- Average Current Mode, Forced-PWM, and Skip Operation
- Overtemperature, Overvoltage, and Short-Circuit Protection
- 3mm x 3mm FC2QFN
- -40°C to +125°C Operating Temperature Range
- 42V Load-Dump Tolerant
- AEC-Q100 Qualified
MAX20403 Automotive 36V, 2.5A/3.5A, Fully Integrated Synchronous Buck Converters
The MAX20402/MAX20403 IC are tiny synchronous buck converters with integrated high-side and low-...
- Multiple Functions for Small Size
- Operating Input Voltage Range: 3V to 36V
- Synchronous DC-DC Converter with Integrated FETs up to 2.5A/3.5A
- 10μA Quiescent Current in Skip Mode
- 3MHz/2.1MHz/400kHz Switching Frequency
- Spread-Spectrum Option
- Fixed 2.5ms Internal Soft-Start
- Programmable 0.8V to 12V Output Voltage Range or Fixed 5V/3.3V Options Available
- 99% Duty Cycle Operation with Low Dropout
- High Precision for Safety Critical Applications
- ±1.5% Output Voltage Accuracy in FPWM
- Precision Enable Thresholds for Fully Programmable UVLO Thresholds
- Accurate Windowed PGOOD
- Robust for the Automotive Environment
- Average Current Mode, Forced-PWM, and Skip Operation
- Overtemperature, Overvoltage, and Short-Circuit Protection
- 3mm x 3mm FC2QFN
- -40°C to +125°C Operating Temperature Range
- 42V Load-Dump Tolerant
- AEC-Q100 Qualified
MAX16731 30A,1.5 MHz, 2.7V to 16V, Step-Down Switching Regulator
The MAX16731 is a fully integrated, highly efficient, step-down DC-DC switching regulator. The r...
- High Power Density with Low Component Count
- Compact 2.52mm x 4.89mm, 45-Bump, WLP Package
- Internal Compensation
- Single Supply Operation with Integrated LDO for Bias Generation
- Wide Operating Range
- 2.7V to 16V Input Voltage Range
- 0.5V to 5.8V Output Voltage Range
- 500kHz to 1.5MHz Configurable Switching Frequency
- -40°C to +125°C Junction Temperature Range
- Three Programming Pins to Select Different Configurations
- Optimized Performance and Efficiency
- 91.2% Peak Efficiency with VDDH = 12V, VOUT = 1.2V, and fSW = 500kHz
- AMS to Improve Load Transient
- Selectable DCM to Improve Light Load Efficiency
- Differential Remote Sense
MAX17645 4.5V to 36V, 1A, High-Efficiency, Synchronous Step-Down DC-DC Converter
The MAX17645 is a high-efficiency, high voltage, synchronous step-down DC-DC converter with inte...
- Reduces External Components and Total Cost
- No Schottky—Synchronous Operation
- Internal Control Loop Compensation
- Internal Soft-Start
- All Ceramic Capacitors, Ultra-Compact Layout
- Reduces Number of DC-DC Regulators to Stock
- Wide 4.5V to 36V Input Voltage Range
- Adjustable Output from 0.9V up to 89% of VIN
- Delivers Up to 1A Load Current
- High Efficiency
- 90% Full-Load Efficiency (VIN = 24V, VOUT = 5V, IOUT = 1A)
- 2.2μA (typ) Shutdown Current
- High Light-Load Efficiency with PFM Mode (MAX17645D)
- Flexible Design
- Programmable EN/UVLO Threshold
- Monotonic Startup into Prebiased Output
- Open-Drain Output (Actiive-Low RESET) for Output Status Monitoring
- Robust Operation
- Built-In Hiccup Mode Overload Protection
- Overtemperature Protection
- CISPR32 Class B Compliant
- Wide -40°C to +125°C Ambient Operating Temperature/-40°C to +150°C Junction Temperature
MAX77839 5.5V Input, 4.4A/3.6A Switching Current 6μA IQ Buck-Boost Converter
The MAX77839 is a highly-efficient buck-boost regulator with an industry leading quiescent curre...
- Flexible System Integration
- 1.8V to 5.5V Input Voltage Range
- 2.3V to 5.3V Single Resistor Adjustable Output
- 3A Maximum Output Current
- 4.4A ILIM, See TOC 24 ("A" and "B" Options)
- 3.6A ILIM, See TOC 23 ("C" and "D" Options)
- 96% Peak Efficiency (VIN = 3.6V, VOUT = 3.3V)
- Optional GPIO Pin (FPWM Input, Active-Low POK Output)
- Low Supply Current that Extends Battery Life
- Skip Mode that Reduces Supply Current at Light Loads
- 6μA Ultra-Low IQ
- 2.2MHz (typ) Switching Frequency
- Integrated Protections that Provide System Robustness
- Undervoltage Lockout (UVLO)
- Overvoltage Protection (OVP)
- Cycle-by-Cycle Inductor Peak Current Limit
- Thermal Shutdown (TSHDN)
- Active Output Discharge
- Small Solution Size
- 2.07mm x 1.51mm, 0.4mm Pitch, 15-Bump WLP
- 2.5mm x 2.0mm, 0.5mm Pitch, 11-Pin FC2QFN
MAX17553 4V to 60V, 50mA, Ultra-Small, High Efficiency, Synchronous Step-Down DC-DC Converter
The MAX17553 is an ultra-small, high-efficiency, high voltage, synchronous step-down DC-DC conve...
- Reduces External Components and Total Cost
- No Schottky–Synchronous Operation
- Internal Control Loop Compensation
- Internal Fixed Soft-Start
- All-Ceramic Capacitors, Ultra-Compact Layout
- Reduces Number of DC-DC Regulators to Stock
- Wide 4V to 60V Input Voltage Range
- Adjustable Output Range from 0.8V up to 90% of VIN (MAX17553C)
- Delivers Up to 50mA Load Current
- 150kHz to 1.5MHz Adjustable Switching Frequency
- Reduces Power Dissipation
- 91.5% Full Load Efficiency (VIN = 24V, VOUT = 5V)
- Higher Light-Load Efficiency with Discontinuous-Conduction Mode (DCM) Operation
- Power Loss Reduction with External Boot-Strap Input (FB/VO) for Internal Circuitry (MAX17553A and MAX17553B only)
- 3.8μA Shutdown Current
- Flexible Design
- Programmable EN/UV and HYST Threshold
- Open-Drain Output Active-Low RESET for Output Status Monitoring
- Robust Operation
- Built-in Hiccup Mode Overload Protection
- Overtemperature Protection
- CISPR32 Class B Compliant
- Wide -40°C to +125°C Ambient Operating Temperature, -40°C to +150°C Junction Temperature
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