MAX77597

PRODUCTION

36V, 300mA, Buck Converter with 1.1μA IQ

Wide VIN Range with Low IQ, High Duty Cycle and Small Solution Size

Data Sheet (Rev. 0) Product Selection Table
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Overview

  • Flexible Power for Systems That Require a Wide Input Voltage Range
    • VIN Range: 3.5V to 36V
    • Up to 300mA Output Current
    • Fixed 3.3V Output Voltage
    • 98% (Max) Duty Cycle Operation with Low Dropout
    • Operates from 5V, 12V, or 20V USB Type-C Input Power
    • Operates from 2S, 3S, or 4S Li-Ion Battery
  • Minimizes Power Consumption and Extends Battery Life
    • 1.1µA Quiescent Current
    • 86% Peak Efficiency at 12VIN, 3.3VOUT
  • Minimizes Solution Size
    • 1.7MHz Operating Frequency
    • Small 2.0mm x 2.5mm x 0.75mm 10-Pin TDFN Package
  • Robust Solution
    • Short-Circuit, Thermal Protections
    • 6.67ms Internal Soft-Start Minimizes Inrush Current
    • Current-Mode Control Architecture
    • Up to 42V Input Voltage Tolerance
MAX77597
36V, 300mA, Buck Converter with 1.1μA IQ
MAX77597: Typical Application Circuit
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Documentation

Data Sheet 1

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Switching Regulators & Controllers 2
MAX77596
PRODUCTION 24V, 300mA, Buck Converter with 1.1μA IQ
MAX77756
PRODUCTION 24V Input, 500mA Buck Regulator with Dual-Input Power MUX
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Tools & Simulations

ADI Power Studio™ Designer

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SIMPLIS Models 1

Evaluation Kits

eval board
schematic 1
MAX77597EVKIT

Evaluation Kit for the MAX77597

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Features and Benefits

  • Evaluates Both Fixed-Output and Adjustable-Output Versions (3.3V Version Is Preinstalled)
  • 3.5V to 36V Input Voltage Range
  • 300mA Maximum Load
  • Demonstrates 1.1μA Quiescent Current at 14V Input
  • RESET Output Test Point
  • Simple Two-Layer Board Serves as a Reference Design
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX77597 evaluation kit (EV kit) demonstrates the MAX77597 synchronous step-down converter IC with integrated switches. The EV kit operates over a wide input range of 3.5V to 36V and can support loads up to 300mA. The EV kit comes standard with the 3.3V fixed output voltage version of the IC. It can be easily modified to evaluate the 5V fixed output version or the adjustable output voltage version.

The EV kit includes jumpers to enable or disable the device, as well as to select either forced-PWM mode (FPWM) or skip-mode operation. A RESETB test point is available to monitor the voltage quality of the converter’s output.

Applications

  • Point-of-Load Applications
  • Portable Devices Powered from 2s, 3s, or 4s Li+ Batteries
  • USB Type-C Devices
MAX77597EVKIT
Evaluation Kit for the MAX77597
MAX77597EVKIT: Board Photo

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