Power

Switching Regulators

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.
Step-Down (Buck)
Step-Up (Boost)
Step-Up or Step-Down (Buck-Boost)
Inverting
Digital Power
Power Modules
Step-Down (Buck)
Step-Up (Boost)
Step-Up or Step-Down (Buck-Boost)
Inverting
Digital Power
Power Modules
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Latest Products
MAX25208 Versatile Automotive 60V/70V 2.2MHz Buck Controller with 7µA IQ and Optional Bypass Mode
- Meets Stringent OEM Module Power Consumption and Performance Specifications
- 7µA Quiescent Current in Skip Mode at VOUT = 3.3V
- ±1.5% Output-Voltage Accuracy: 5.0V/3.3V Fixed, or Adjustable Between 1V and 10V
- Enables Crank-Ready Designs
- Wide Input Supply Range from 3.5V to 42V
- EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range
- 50ns (typ) Minimum On-Time Guarantees Skip-Free Operation for 3.3V Output from Car Battery at 2.2MHz
- Spread-Spectrum Option
- Frequency-Synchronization Input
- Resistor-Programmable Frequency Between 220kHz and 2.2MHz
- Integration and Thermally Enhanced Packages Save Board Space and Cost
- 2.2MHz Step-Down Controller
- 180° Out-of-Phase SYNCOUT Output for Synchronization
- Current-Mode Controller with Forced-Continuous and Skip Modes
- Thermally Enhanced 20-Pin Side-Wettable (SW) TQFN-EP Package
- Protection Features Improve System Reliability
- Supply Undervoltage Lockout
- Overtemperature and Short-Circuit Protection
- Output Overvoltage and Undervoltage Monitoring
- -40°C to +125°C Grade 1 Automotive Temperature Range
MAX25207 Versatile Automotive 60V/70V 2.2MHz Buck Controller with 7µA IQ and Optional Bypass Mode
- Meets Stringent OEM Module Power Consumption and Performance Specifications
- 7µA Quiescent Current in Skip Mode at VOUT = 3.3V
- ±1.5% Output-Voltage Accuracy: 5.0V/3.3V Fixed, or Adjustable Between 1V and 10V
- Enables Crank-Ready Designs
- Wide Input Supply Range from 3.5V to 42V
- EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range
- 50ns (typ) Minimum On-Time Guarantees Skip-Free Operation for 3.3V Output from Car Battery at 2.2MHz
- Spread-Spectrum Option
- Frequency-Synchronization Input
- Resistor-Programmable Frequency Between 220kHz and 2.2MHz
- Integration and Thermally Enhanced Packages Save Board Space and Cost
- 2.2MHz Step-Down Controller
- 180° Out-of-Phase SYNCOUT Output for Synchronization
- Current-Mode Controller with Forced-Continuous and Skip Modes
- Thermally Enhanced 20-Pin Side-Wettable (SW) TQFN-EP Package
- Protection Features Improve System Reliability
- Supply Undervoltage Lockout
- Overtemperature and Short-Circuit Protection
- Output Overvoltage and Undervoltage Monitoring
- -40°C to +125°C Grade 1 Automotive Temperature Range
MAX25206 Versatile Automotive 60V/70V 2.2MHz Buck Controller with 7µA IQ and Optional Bypass Mode
- Meets Stringent OEM Module Power Consumption and Performance Specifications
- 7µA Quiescent Current in Skip Mode at VOUT = 3.3V
- ±1.5% Output-Voltage Accuracy: 5.0V/3.3V Fixed, or Adjustable Between 1V and 10V
- Enables Crank-Ready Designs
- Wide Input Supply Range from 3.5V to 42V
- EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range
- 50ns (typ) Minimum On-Time Guarantees Skip-Free Operation for 3.3V Output from Car Battery at 2.2MHz
- Spread-Spectrum Option
- Frequency-Synchronization Input
- Resistor-Programmable Frequency Between 220kHz and 2.2MHz
- Integration and Thermally Enhanced Packages Save Board Space and Cost
- 2.2MHz Step-Down Controller
- 180° Out-of-Phase SYNCOUT Output for Synchronization
- Current-Mode Controller with Forced-Continuous and Skip Modes
- Thermally Enhanced 20-Pin Side-Wettable (SW) TQFN-EP Package
- Protection Features Improve System Reliability
- Supply Undervoltage Lockout
- Overtemperature and Short-Circuit Protection
- Output Overvoltage and Undervoltage Monitoring
- -40°C to +125°C Grade 1 Automotive Temperature Range
MAX17624 2.9V to 5.5V,1A, Synchronous Step-Down Converter with Integrated MOSFETs
- Easy to Use
- 2.9V to 5.5V Input
- Adjustable 0.8V to 3.3V Output
- ±1% Feedback Accuracy
- Up to 1A Output Current
- Fixed 2MHz or 4MHz Operation
- 100% Duty-Cycle Operation
- Internally Compensated
- All Ceramic Capacitors
- High Efficiency
- Selectable PWM- or PFM-Mode of Operation
- Shutdown Current as Low as 0.1μA (typ)
- Flexible Design
- Internal Soft-Start and Prebias Startup
- Open-Drain Power Good Output (PGOOD Pin)
- Robust Operation
- Overtemperature Protection
- Overcurrent Protection
- -40°C to +125°C Ambient Operating
- Temperature/ -40°C to +150°C Junction Temperature
MAX17623 2.9V to 5.5V,1A, Synchronous Step-Down Converter with Integrated MOSFETs
- Easy to Use
- 2.9V to 5.5V Input
- Adjustable 0.8V to 3.3V Output
- ±1% Feedback Accuracy
- Up to 1A Output Current
- Fixed 2MHz or 4MHz Operation
- 100% Duty-Cycle Operation
- Internally Compensated
- All Ceramic Capacitors
- High Efficiency
- Selectable PWM- or PFM-Mode of Operation
- Shutdown Current as Low as 0.1μA (typ)
- Flexible Design
- Internal Soft-Start and Prebias Startup
- Open-Drain Power Good Output (PGOOD Pin)
- Robust Operation
- Overtemperature Protection
- Overcurrent Protection
- -40°C to +125°C Ambient Operating
- Temperature/ -40°C to +150°C Junction Temperature
MAX25232 36V, 3A Mini Buck Converter with 3.5uA IQ
- Synchronous DC-DC Converter with Integrated FETs
- MAX25232ATCA/VY+/B = 2.5A IOUT
- MAX25232ATCD/VY+/E = 3A IOUT
- 3.5µA Quiescent Current when in Standby Mode
- Small Solution Size Saves Space
- 65ns Minimum On-Time
- 2.1MHz or 400kHz Operating Frequency
- Fixed Output Voltages with ±2% Output Accuracy in FPWM Mode (5V/3.3V)
- Fixed 3.5ms Internal Soft-Start
- Innovative Current-Mode-Control Architecture Minimizes Total Board Space and BOM Count
- PGOOD Output and High-Voltage EN Input Simplify Power Sequencing
- Protection Features and Operating Range Ideal for Automotive Applications
- 3.5V to 36V Operating VIN Range
- 40V Load-Dump Protection
- 99% Duty-Cycle Operation with Low Dropout
- -40°C to +125°C Automotive Temperature Range
- AEC-Q100 Qualified
MAX17578 4.5V to 60V, 1A High-Efficiency, Synchronous, Inverting Output DC-DC Converters
- Reduces External Components and Total Cost
- Synchronous Operation
- All-Ceramic Capacitors, Compact Layout
- Internal Loop Compensation
- System Ground Referenced I/O Pins (EN/UVLO, Active-Low RESET
- Flexibility to Support Multiple Rails in a System
- Adjustable Output Voltage Range from -0.9V to -36V
- Wide 4.5V to (60V - |VOUT|) Input-Voltage Range
- Up to 1A Output Current
- 400kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
- Reduces Power Dissipation
- 90.6% Peak Efficiency
- DCM for Superior Light-Load Efficiency
- 6.2µA Shutdown Current
- Operates Reliably in Adverse Industrial Environments
- Hiccup-Mode Overload Protection
- Adjustable Soft-Start
- Monotonic Startup with Prebiased Output Voltage
- Built-In Output-Voltage Monitoring with Active-Low RESET
- Programmable EN/UVLO Threshold
- Overtemperature Protection
- Wide -40°C to +125°C Ambient Operating Temperature Range/ -40°C to +150° C Junction Temperature Range
MAX17577 4.5V to 60V, 1A High-Efficiency, Synchronous, Inverting Output DC-DC Converters
- Reduces External Components and Total Cost
- Synchronous Operation
- All-Ceramic Capacitors, Compact Layout
- Internal Loop Compensation
- System Ground Referenced I/O Pins (EN/UVLO, Active-Low RESET
- Flexibility to Support Multiple Rails in a System
- Adjustable Output Voltage Range from -0.9V to -36V
- Wide 4.5V to (60V - |VOUT|) Input-Voltage Range
- Up to 1A Output Current
- 400kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
- Reduces Power Dissipation
- 90.6% Peak Efficiency
- DCM for Superior Light-Load Efficiency
- 6.2µA Shutdown Current
- Operates Reliably in Adverse Industrial Environments
- Hiccup-Mode Overload Protection
- Adjustable Soft-Start
- Monotonic Startup with Prebiased Output Voltage
- Built-In Output-Voltage Monitoring with Active-Low RESET
- Programmable EN/UVLO Threshold
- Overtemperature Protection
- Wide -40°C to +125°C Ambient Operating Temperature Range/ -40°C to +150° C Junction Temperature Range
MAX17552B 60V, 100mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter with 22μA No-Load Supply Current
- Eliminates External Components and Reduces Total Cost
- No Schottky—Synchronous Operation for High Efficiency and Reduced Cost
- Internal Compensation
- Fixed Internal 5.1ms or Programmable Soft-Start
- All-Ceramic Capacitors, Ultra-Compact Layout
- Reduces Number of DC-DC Regulators to Stock
- Wide 4V to 60V Input Voltage Range
- Adjustable 0.8V to 0.9 x VIN Output Voltages
- Delivers Up to 100mA Load Current
- 100kHz to 2.2MHz Adjustable Switching Frequency Range with External Clock Synchronization
- Configurable Between PFM and Forced-PWM Modes
- Reduces Power Dissipation
- 22µA No Load Supply Current
- Peak Efficiency > 90%
- PFM Feature for High Light-Load Efficiency
- 1.2µA (typ) Shutdown Current
- Operates Reliably in Adverse Industrial Environments
- Peak Current-Limit Protection
- Built-In Output-Voltage Monitoring with Open-Drain Active-Low RESET Pin
- Programmable EN/UVLO Threshold
- Monotonic Startup into Prebiased Output
- Overtemperature Protection
- High Industrial -40°C to +125°C Ambient Operating Temperature Range / -40°C to +150°C Junction Temperature Range
MAX17291 High-Voltage, 1A Micropower Boost Converter with Short-Circuit Protection and True Shutdown
- 28μA Quiescent Supply Current from Input
- Output Short-Circuit Protection
- Overtemperature Protection
- Constant Frequency in CCM
- True Shutdown Mode
- 0.05μA Shutdown Current
- No Reverse Current from OUT
- 91% Peak Efficiency
- 1.8V to 5.5V Input Range
- 5.5V to 20V Output Voltage Range
- 1A Peak Inductor Current Limit
- Multiple Package Options
- 1.27mm x 0.87mm, 6-Bump (3 x 2), 0.4mm Pitch WLP
- 2mm x 2mm, 8-Pin TDFN
- -40°C to +125°C Operating Temperature Range
MAX25208 Versatile Automotive 60V/70V 2.2MHz Buck Controller with 7µA IQ and Optional Bypass Mode
- Meets Stringent OEM Module Power Consumption and Performance Specifications
- 7µA Quiescent Current in Skip Mode at VOUT = 3.3V
- ±1.5% Output-Voltage Accuracy: 5.0V/3.3V Fixed, or Adjustable Between 1V and 10V
- Enables Crank-Ready Designs
- Wide Input Supply Range from 3.5V to 42V
- EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range
- 50ns (typ) Minimum On-Time Guarantees Skip-Free Operation for 3.3V Output from Car Battery at 2.2MHz
- Spread-Spectrum Option
- Frequency-Synchronization Input
- Resistor-Programmable Frequency Between 220kHz and 2.2MHz
- Integration and Thermally Enhanced Packages Save Board Space and Cost
- 2.2MHz Step-Down Controller
- 180° Out-of-Phase SYNCOUT Output for Synchronization
- Current-Mode Controller with Forced-Continuous and Skip Modes
- Thermally Enhanced 20-Pin Side-Wettable (SW) TQFN-EP Package
- Protection Features Improve System Reliability
- Supply Undervoltage Lockout
- Overtemperature and Short-Circuit Protection
- Output Overvoltage and Undervoltage Monitoring
- -40°C to +125°C Grade 1 Automotive Temperature Range
MAX25207 Versatile Automotive 60V/70V 2.2MHz Buck Controller with 7µA IQ and Optional Bypass Mode
- Meets Stringent OEM Module Power Consumption and Performance Specifications
- 7µA Quiescent Current in Skip Mode at VOUT = 3.3V
- ±1.5% Output-Voltage Accuracy: 5.0V/3.3V Fixed, or Adjustable Between 1V and 10V
- Enables Crank-Ready Designs
- Wide Input Supply Range from 3.5V to 42V
- EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range
- 50ns (typ) Minimum On-Time Guarantees Skip-Free Operation for 3.3V Output from Car Battery at 2.2MHz
- Spread-Spectrum Option
- Frequency-Synchronization Input
- Resistor-Programmable Frequency Between 220kHz and 2.2MHz
- Integration and Thermally Enhanced Packages Save Board Space and Cost
- 2.2MHz Step-Down Controller
- 180° Out-of-Phase SYNCOUT Output for Synchronization
- Current-Mode Controller with Forced-Continuous and Skip Modes
- Thermally Enhanced 20-Pin Side-Wettable (SW) TQFN-EP Package
- Protection Features Improve System Reliability
- Supply Undervoltage Lockout
- Overtemperature and Short-Circuit Protection
- Output Overvoltage and Undervoltage Monitoring
- -40°C to +125°C Grade 1 Automotive Temperature Range
MAX25206 Versatile Automotive 60V/70V 2.2MHz Buck Controller with 7µA IQ and Optional Bypass Mode
- Meets Stringent OEM Module Power Consumption and Performance Specifications
- 7µA Quiescent Current in Skip Mode at VOUT = 3.3V
- ±1.5% Output-Voltage Accuracy: 5.0V/3.3V Fixed, or Adjustable Between 1V and 10V
- Enables Crank-Ready Designs
- Wide Input Supply Range from 3.5V to 42V
- EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range
- 50ns (typ) Minimum On-Time Guarantees Skip-Free Operation for 3.3V Output from Car Battery at 2.2MHz
- Spread-Spectrum Option
- Frequency-Synchronization Input
- Resistor-Programmable Frequency Between 220kHz and 2.2MHz
- Integration and Thermally Enhanced Packages Save Board Space and Cost
- 2.2MHz Step-Down Controller
- 180° Out-of-Phase SYNCOUT Output for Synchronization
- Current-Mode Controller with Forced-Continuous and Skip Modes
- Thermally Enhanced 20-Pin Side-Wettable (SW) TQFN-EP Package
- Protection Features Improve System Reliability
- Supply Undervoltage Lockout
- Overtemperature and Short-Circuit Protection
- Output Overvoltage and Undervoltage Monitoring
- -40°C to +125°C Grade 1 Automotive Temperature Range
MAX17624 2.9V to 5.5V,1A, Synchronous Step-Down Converter with Integrated MOSFETs
- Easy to Use
- 2.9V to 5.5V Input
- Adjustable 0.8V to 3.3V Output
- ±1% Feedback Accuracy
- Up to 1A Output Current
- Fixed 2MHz or 4MHz Operation
- 100% Duty-Cycle Operation
- Internally Compensated
- All Ceramic Capacitors
- High Efficiency
- Selectable PWM- or PFM-Mode of Operation
- Shutdown Current as Low as 0.1μA (typ)
- Flexible Design
- Internal Soft-Start and Prebias Startup
- Open-Drain Power Good Output (PGOOD Pin)
- Robust Operation
- Overtemperature Protection
- Overcurrent Protection
- -40°C to +125°C Ambient Operating
- Temperature/ -40°C to +150°C Junction Temperature
MAX17623 2.9V to 5.5V,1A, Synchronous Step-Down Converter with Integrated MOSFETs
- Easy to Use
- 2.9V to 5.5V Input
- Adjustable 0.8V to 3.3V Output
- ±1% Feedback Accuracy
- Up to 1A Output Current
- Fixed 2MHz or 4MHz Operation
- 100% Duty-Cycle Operation
- Internally Compensated
- All Ceramic Capacitors
- High Efficiency
- Selectable PWM- or PFM-Mode of Operation
- Shutdown Current as Low as 0.1μA (typ)
- Flexible Design
- Internal Soft-Start and Prebias Startup
- Open-Drain Power Good Output (PGOOD Pin)
- Robust Operation
- Overtemperature Protection
- Overcurrent Protection
- -40°C to +125°C Ambient Operating
- Temperature/ -40°C to +150°C Junction Temperature
MAX25232 36V, 3A Mini Buck Converter with 3.5uA IQ
- Synchronous DC-DC Converter with Integrated FETs
- MAX25232ATCA/VY+/B = 2.5A IOUT
- MAX25232ATCD/VY+/E = 3A IOUT
- 3.5µA Quiescent Current when in Standby Mode
- Small Solution Size Saves Space
- 65ns Minimum On-Time
- 2.1MHz or 400kHz Operating Frequency
- Fixed Output Voltages with ±2% Output Accuracy in FPWM Mode (5V/3.3V)
- Fixed 3.5ms Internal Soft-Start
- Innovative Current-Mode-Control Architecture Minimizes Total Board Space and BOM Count
- PGOOD Output and High-Voltage EN Input Simplify Power Sequencing
- Protection Features and Operating Range Ideal for Automotive Applications
- 3.5V to 36V Operating VIN Range
- 40V Load-Dump Protection
- 99% Duty-Cycle Operation with Low Dropout
- -40°C to +125°C Automotive Temperature Range
- AEC-Q100 Qualified
MAX17578 4.5V to 60V, 1A High-Efficiency, Synchronous, Inverting Output DC-DC Converters
- Reduces External Components and Total Cost
- Synchronous Operation
- All-Ceramic Capacitors, Compact Layout
- Internal Loop Compensation
- System Ground Referenced I/O Pins (EN/UVLO, Active-Low RESET
- Flexibility to Support Multiple Rails in a System
- Adjustable Output Voltage Range from -0.9V to -36V
- Wide 4.5V to (60V - |VOUT|) Input-Voltage Range
- Up to 1A Output Current
- 400kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
- Reduces Power Dissipation
- 90.6% Peak Efficiency
- DCM for Superior Light-Load Efficiency
- 6.2µA Shutdown Current
- Operates Reliably in Adverse Industrial Environments
- Hiccup-Mode Overload Protection
- Adjustable Soft-Start
- Monotonic Startup with Prebiased Output Voltage
- Built-In Output-Voltage Monitoring with Active-Low RESET
- Programmable EN/UVLO Threshold
- Overtemperature Protection
- Wide -40°C to +125°C Ambient Operating Temperature Range/ -40°C to +150° C Junction Temperature Range
MAX17577 4.5V to 60V, 1A High-Efficiency, Synchronous, Inverting Output DC-DC Converters
- Reduces External Components and Total Cost
- Synchronous Operation
- All-Ceramic Capacitors, Compact Layout
- Internal Loop Compensation
- System Ground Referenced I/O Pins (EN/UVLO, Active-Low RESET
- Flexibility to Support Multiple Rails in a System
- Adjustable Output Voltage Range from -0.9V to -36V
- Wide 4.5V to (60V - |VOUT|) Input-Voltage Range
- Up to 1A Output Current
- 400kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
- Reduces Power Dissipation
- 90.6% Peak Efficiency
- DCM for Superior Light-Load Efficiency
- 6.2µA Shutdown Current
- Operates Reliably in Adverse Industrial Environments
- Hiccup-Mode Overload Protection
- Adjustable Soft-Start
- Monotonic Startup with Prebiased Output Voltage
- Built-In Output-Voltage Monitoring with Active-Low RESET
- Programmable EN/UVLO Threshold
- Overtemperature Protection
- Wide -40°C to +125°C Ambient Operating Temperature Range/ -40°C to +150° C Junction Temperature Range
MAX17552B 60V, 100mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter with 22μA No-Load Supply Current
- Eliminates External Components and Reduces Total Cost
- No Schottky—Synchronous Operation for High Efficiency and Reduced Cost
- Internal Compensation
- Fixed Internal 5.1ms or Programmable Soft-Start
- All-Ceramic Capacitors, Ultra-Compact Layout
- Reduces Number of DC-DC Regulators to Stock
- Wide 4V to 60V Input Voltage Range
- Adjustable 0.8V to 0.9 x VIN Output Voltages
- Delivers Up to 100mA Load Current
- 100kHz to 2.2MHz Adjustable Switching Frequency Range with External Clock Synchronization
- Configurable Between PFM and Forced-PWM Modes
- Reduces Power Dissipation
- 22µA No Load Supply Current
- Peak Efficiency > 90%
- PFM Feature for High Light-Load Efficiency
- 1.2µA (typ) Shutdown Current
- Operates Reliably in Adverse Industrial Environments
- Peak Current-Limit Protection
- Built-In Output-Voltage Monitoring with Open-Drain Active-Low RESET Pin
- Programmable EN/UVLO Threshold
- Monotonic Startup into Prebiased Output
- Overtemperature Protection
- High Industrial -40°C to +125°C Ambient Operating Temperature Range / -40°C to +150°C Junction Temperature Range
MAX17291 High-Voltage, 1A Micropower Boost Converter with Short-Circuit Protection and True Shutdown
- 28μA Quiescent Supply Current from Input
- Output Short-Circuit Protection
- Overtemperature Protection
- Constant Frequency in CCM
- True Shutdown Mode
- 0.05μA Shutdown Current
- No Reverse Current from OUT
- 91% Peak Efficiency
- 1.8V to 5.5V Input Range
- 5.5V to 20V Output Voltage Range
- 1A Peak Inductor Current Limit
- Multiple Package Options
- 1.27mm x 0.87mm, 6-Bump (3 x 2), 0.4mm Pitch WLP
- 2mm x 2mm, 8-Pin TDFN
- -40°C to +125°C Operating Temperature Range