MAX17673

Integrated 4.5V to 60V Synchronous 1.5A HV Buck and Dual 2.7V to 5.5V, 1A Buck Regulators

Industry's first 60V capable, multi-output PMIC


Please check latest availability status for a specific part variant.

Description

MAX17673 power management integrated circuit (PMIC) integrates a 60V high voltage (HV), high efficiency synchronous DC-DC buck regulator and two 5.5V high efficiency synchronous DC-DC buck regulators. All three regulators offer integrated power MOSFETs.

The HV regulator operates from a 4.5V to 60V input voltage range and the LV regulators operate from a 2.7V to 5.5V input voltage range. The HV regulator supports load currents up to 1.5A, and can regulate output voltages from 0.9V to 5.5V. The LV regulators support load currents up to 1A, and can regulate output voltages from 0.75V to 4.8V.

MAX17673 offers independent peak current mode control, hiccup mode overcurrent protection, ENABLE input and Power OK signal in the three regulators. The switching frequency is adjustable between 1MHz and 4MHz in the LV regulators, and the HV regulator can be programmed to run at a fractional switching frequency of the LV regulators. The HV regulator offers an adjustable soft-start function, while the LV regulators present internally fixed soft-start. Users can choose to operate the device in either pulse frequency modulation (PFM) or forced pulse width modulation (PWM) scheme.

The device is available in a 28-pin, 5mm x 5mm TQFN package and operates over a -40°C to +125°C temperature range.

MAX17673: Typical Application Circuit MAX17673: Typical Application Circuit Enlarge+

Key Features

  • Reduces External Components and Total Cost
    • Synchronous Operation for High Efficiency
    • Internal Compensation for a Wide Output Voltage Range
    • All-Ceramic Capacitors,Compact Layout
  • Integrates Three DC-DC Regulators
    • Wide 4.5V to 60V Input Voltage Range for the HV Regulator. 2.7V to 5.5V Input Range for LV Regulators.
    • Adjustable 0.9V to 5.5V Output for the HV Regulator and 0.75V up to 4.8V Output for LV Regulators
    • Delivers up to 1.5A Load Current for the HV Regulator and 1A Load Current for LV Regulators
    • Adjustable Switching Frequency: 250KHz to 800KHz for HV Regulator and 1MHz to 4MHz for LV Regulators
    • Programmable LV / HV Switching Frequency Ratio (2, 3, 4, 5, 6, 7, 8)
    • EN/UVLO for HV buck and EN for LV regulators
  • Reduces Power Dissipation
    • 550μA in PFM and 10.2mA in PWM Mode Quiescent Current
    • Peak Efficiency > 92%
    • Auxiliary Bootstrap LDO for Improved Efficiency
    • PFM Mode for High Light-Load Efficiency
    • 7.4μA Shutdown Current
  • Operates Reliably in Adverse Industrial Environments
    • Peak-Current Limit Protection
    • Hiccup Mode Overload Protection
    • Soft-Start Reduces Inrush Current During Startup (Adjustable for HV Regulator)
    • Built-In Output-Voltage Monitoring with POKH, POKA, and POKB
    • Monotonic Startup into Prebiased Load
    • Overtemperature Protection
    • -40°C to +125°C Operating Temperature Range

Applications/Uses

  • Base Station Power Supplies
  • Distributed Supply Regulation
  • FPGA/CPLD Power Supplies
  • High Voltage Single Board Systems
  • Industrial Control Power Supplies
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)
Package/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX17673 NEW!4.5600.95.5Resistor1.5InternalYesYes3
250
2200
TQFN-CU/28
$2.78 @1k
See All Step-Down Switching Regulators (363)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX17673EVKIT: Evaluation Kit for the MAX17673 5V, 3.3V, 1.8V Output Applications

Quality and Environmental Data

Request Reliability Report for: MAX17673 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

 
Status:
Package:
Temperature:

Related Resources


MAX20049
Flexible Mini Dual 2.2MHz, 500mA Buck Converter with LDOs for Automotive Camera Supplies

  • Small Solution Size
  • EMI Solutions
  • Self-Protected and Robust

MAX17673
Integrated 4.5V to 60V Synchronous 1.5A HV Buck and Dual 2.7V to 5.5V, 1A Buck Regulators

  • Reduces External Components and Total Cost
  • Integrates Three DC-DC Regulators
  • Reduces Power Dissipation

MAX77813
High-Efficiency Buck-Boost Converter

  • VIN Range: 2.30V to 5.5V
  • VOUT Range: 2.60V to 5.14V
  • (I2C Programmable in 20mV Step)

MAX38640
Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

  • Extends Battery Life
  • Easy to Use – Addresses Popular Operation
  • Protects System in Multiple Use Cases

MAX38641
Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

  • Extends Battery Life
  • Easy to Use – Addresses Popular Operation
  • Protects System in Multiple Use Cases

MAX38642
Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

  • Extends Battery Life
  • Easy to Use – Addresses Popular Operation
  • Protects System in Multiple Use Cases

MAX38643
Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

  • Extends Battery Life
  • Easy to Use – Addresses Popular Operation
  • Protects System in Multiple Use Cases

MAX5995C
IEEE 802.3bt-Compliant, Powered Device Interface Controllers with Integrated 91W High-Power MOSFET

  • IEEE 802.3af/at/bt Compliant
  • Type 1~4 PSE Classification Indicator or an External Wall Adapter Indicator Output
  • Simplified Wall Adapter Interface

MAX5995A
IEEE 802.3bt-Compliant, Powered Device Interface Controllers with Integrated 91W High-Power MOSFET

  • IEEE 802.3af/at/bt Compliant
  • Type 1~4 PSE Classification Indicator or an External Wall Adapter Indicator Output
  • Simplified Wall Adapter Interface

MAX5995B
IEEE 802.3bt-Compliant, Powered Device Interface Controllers with Integrated 91W High-Power MOSFET

  • IEEE 802.3af/at/bt Compliant
  • Type 1~4 PSE Classification Indicator or an External Wall Adapter Indicator Output
  • Simplified Wall Adapter Interface

MAX38903A
1.7V—5.5VIN, 1A Low Noise LDO Linear Regulators in TDFN and WLP

  • 1.7V to 5.5V Input Voltage Range
  • 0.6V to 5.3V Programmable Output Voltage
  • 7µVRMS Output Noise, 10Hz to 100kHz

MAX38903B
1.7V—5.5VIN, 1A Low Noise LDO Linear Regulators in TDFN and WLP

  • 1.7V to 5.5V Input Voltage Range
  • 0.6V to 5.3V Programmable Output Voltage
  • 7µVRMS Output Noise, 10Hz to 100kHz

MAX38903C
1.7V—5.5VIN, 1A Low Noise LDO Linear Regulators in TDFN and WLP

  • 1.7V to 5.5V Input Voltage Range
  • 0.6V to 5.3V Programmable Output Voltage
  • 7µVRMS Output Noise, 10Hz to 100kHz

MAX38903D
1.7V—5.5VIN, 1A Low Noise LDO Linear Regulators in TDFN and WLP

  • 1.7V to 5.5V Input Voltage Range
  • 0.6V to 5.3V Programmable Output Voltage
  • 7µVRMS Output Noise, 10Hz to 100kHz

MAX20004
36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Step-Down Converters

  • Multiple Functions for Small Size
  • High Precision
  • Robust for the Automotive Environment

MAX20006
36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Step-Down Converters

  • Multiple Functions for Small Size
  • High Precision
  • Robust for the Automotive Environment

MAX20008
36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Step-Down Converters

  • Multiple Functions for Small Size
  • High Precision
  • Robust for the Automotive Environment

MAX20077EVKIT
Evaluation Kit for the MAX20077

  • 3.5V to 36V Input Supply Range
  • 5V or 3.3V Fixed Output Voltage, or Adjustable Between 1V and 10V
  • Delivers Up to 2.5A Output Current

MAX20077
36V, 2.5A Mini Buck Converter with 3.5uA IQ

  • Synchronous DC-DC Converter with Integrated FETs
  • Small Solution Size Saves Space
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

MAX25277
36V, 2.5A Mini Buck Converter with 3.5uA IQ

  • Synchronous DC-DC Converter with Integrated FETs
  • Small Solution Size Saves Space
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

MAX77503
14V Input, 1.5A High-Efficiency Buck Converter with 9μA IQ

  • 1.5A Single Channel Buck Regulator
  • 3V to 14V Input Voltage Range
  • 0.8V to 99%VSUP Output Voltage Range

MAX17270
nanoPower Triple/Dual-Output, Single-Inductor, Multiple-Output (SIMO) Buck-Boost Regulator

  • 3-Output/2-Output, Single-Inductor, Multiple-Output (SIMO) Buck-Boost Regulator
  • 2.7V to 5.5V Input Voltage Range
  • Low-Power and Long Battery Life

MAX17271
nanoPower Triple/Dual-Output, Single-Inductor, Multiple-Output (SIMO) Buck-Boost Regulator

  • 3-Output/2-Output, Single-Inductor, Multiple-Output (SIMO) Buck-Boost Regulator
  • 2.7V to 5.5V Input Voltage Range
  • Low-Power and Long Battery Life

MAXM17900
4V to 24V, 100mA, Compact Step-Down Power Module

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM17552
4V to 60V, 100mA, Compact Step-Down Power Module

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAX38888
2.5V–5.0V, 0.5A/2.5A Reversible Buck/Boost Regulator for Backup Power Applications

  • 2.5V to 5V System Output Voltage
  • 0.8V to 4.5V Cap Voltage Range
  • Up to 2.5A Peak Inductor Discharge Current

MAX17250
2.7V to 18V Input, Boost Converter with 0.1uA True Shutdown, Short Circuit Protection and Selectable Input Current Limit

  • Input Voltage Range 2.7V to 18V
  • Output Voltage Range 3V to 18V, > VIN
  • Integrated Power FETs

MAX17672
Integrated 4V-60V, 150mA, High-Efficiency, Synchronous Step-Down DC-DC Converter with 50mA Linear Regulator

  • Reduces External Components and Total Cost
  • Reduces Number of DC-DC Regulators to Stock
  • Reduces Power Dissipation

MAX17670
Integrated 4V-60V, 150mA, High-Efficiency, Synchronous Step-Down DC-DC Converter with 50mA Linear Regulator

  • Reduces External Components and Total Cost
  • Reduces Number of DC-DC Regulators to Stock
  • Reduces Power Dissipation

MAX17671
Integrated 4V-60V, 150mA, High-Efficiency, Synchronous Step-Down DC-DC Converter with 50mA Linear Regulator

  • Reduces External Components and Total Cost
  • Reduces Number of DC-DC Regulators to Stock
  • Reduces Power Dissipation

MAX20098
Versatile 36V 2.2MHz Buck Controller with 3.5µA IQ

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
  • Enables Crank-Ready Designs
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range

MAX17633
4.5V to 36V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter

  • Reduces External Components and Total Cost
  • Reduces Number of DC-DC Regulators to Stock
  • Reduces Power Dissipation

MAXM17903
4.5V to 24V, 300mA Compact Step-Down Power Module

  • Easy to use
  • High Efficiency
  • Flexible Design

MAXM15064
4.5V to 60V, 300mA Compact Step-Down Power Module

  • Easy to use
  • High Efficiency
  • Flexible Design

MAX77680
3-Output SIMO Buck-Boost Regulator with Power Sequencer and 3μA IQ

  • Single-Inductor, Multiple-Output (SIMO) Extends Battery Life
  • Compact, High-Efficiency Power Solution
  • Small Size

MAX77681
3-Output SIMO Buck-Boost Regulator with Power Sequencer and 3μA IQ

  • Single-Inductor, Multiple-Output (SIMO) Extends Battery Life
  • Compact, High-Efficiency Power Solution
  • Small Size

MAX20416
2.2MHz Dual-Output, Low-Voltage Step-Down Converters

  • Multiple Functions for Small Size
  • High Precision
  • Robust for the Automotive Environment

Type ID Title
Evaluation Board10092MAX17673EVKIT Evaluation Kit for the MAX17673 5V, 3.3V, 1.8V Output Applications