MAX77839

RECOMMENDED FOR NEW DESIGNS

5.5V Input, 4.4A/3.6A Switching Current 6μA IQ Buck-Boost Converter

4.4A Buck-Boost Converter with Lowest IQ

Data Sheet (Rev. 2)
Product Selection Table
Part Models
16
1ku List Price
Starting From $0.80
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Part Details

  • 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
MAX77839
5.5V Input, 4.4A/3.6A Switching Current 6μA IQ Buck-Boost Converter
MAX77839: Functional Block Diagram
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Documentation

Data Sheet 1

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Tools & Simulations

EE-Sim Power® Tools 1

The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.

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Evaluation Kits

eval board
schematic 1
MAX77839WEVKIT

Evaluation Kit for the MAX77839 in WLP Package

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Features and Benefits

  • Sense Points for High-Accuracy Measurements
  • Accessible Test Points for EN, POK, and OUTS
  • Output Voltage Adjustable Using SEL
  • FPWM and SKIP Mode Configurable (A and C options) (SKIP mode by default)
  • POK Status Configurable (B and D options)
  • Active Discharge Functionality
  • UVLO Rising = 1.8V, UVLO Falling = 1.73V (MAX77839AEWL+)

Product Details

The MAX77839 evaluation kit (EV kit) provides a proven design to evaluate the MAX77839, a 2.5A buck-boost converter. The IC is capable of 1.8V to 5.5V input and is output voltage adjustable between 2.3V to 5.3V (through the SEL pin). The factory default output voltage of this EV kit is set at 3.3V. Output voltage can be adjusted by changing the SEL resistor value (R3). The GPIO pin is available to support the force PWM or power-OK (POK) function. The EV kit is compatible with any version of the MAX77839 WLP IC (MAX77839AEWL+ is the default).

Applications

  • 5G/2G/GSM Cellular Power
  • Asset Tracking/Fleet Management
  • RF Amplifier
  • Single-Cell Li-ion Battery Powered Devices
  • Smartphones ToF/Facial and Gesture Recognition
  • System Power Pre-Regulation

eval board
schematic 2
MAX77839QEVKIT

Evaluation Kit for the MAX77839 (FC2QFN)

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Features and Benefits

  • Sense points for high-accuracy measurements
  • Accessible test points for EN, POK, and OUTS
  • Output Voltage adjustable with SEL
  • FPWM and Skip mode configurable (A and C options) (Skip mode default)
  • POK status configurable (B and D options)
  • Active Discharge functionality

Product Details

The MAX77839 evaluation kit (EV kit) provides a proven design to evaluate MAX77839, a 2.5A buck-boost converter. The IC is capable of 1.8V to 5.5V input and is output voltage adjustable between 2.3V to 5.3V (with SEL pin). The factory default output voltage of this EV kit is set at 3.3V. Output voltage can be adjusted by changing the SEL resistor value (R3). GPIO pin is available to support Force PWM or POK functionality. The EV kit is compatible with any version of the MAX77839 FC2QFN IC (MAX77827AEFQ+ is the default).

Applications

  • 5G/2G/GSM Cellular Power
  • Asset Tracking/Fleet Management
  • RF Amplifier
  • Single-Cell Li-ion Battery Powered Devices
  • Smartphones ToF/Facial and Gesture Recognition
  • System Power Pre-Regulation

MAXESSENTIAL02EP

Essential Analog Efficient Power Toolkit for the MAXM38643 / MAX38640 / MAX77839 / MAXM17225 / MAX17227A / MAX38889 / MAX38902C / MAX38913 / MAX77827

Buy Now View Details

Features and Benefits

  • Enables Immediate Testing of Nine Different Power Solutions
  • Includes nanoPower Buck and Boost Converters and Modules, Buck/Boost Converter, LDOs, and Continua Supercapacitor Backup Power Controller
  • Boards Designed to Accept 0.100” (2.54mm) Header Pin Strips for Mounting on Breadboards
  • Through Holes Accept Test Points for Connecting to Benchtop Equipment

Product Details

The MAXESSENTIAL02EP Essential Analog Efficient Power toolkit delivers products on ready-to-use boards for immediate testing and prototyping. The Essential Analog Efficient Power toolkit features products from the Buck, Boost, Buck-Boost, LDO, and Continua™ product categories. The selection also features nanoPower switching converter and module options.
MAX77839WEVKIT
Evaluation Kit for the MAX77839 in WLP Package
MAX77839WEVKIT: Board Photo
MAX77839QEVKIT
Evaluation Kit for the MAX77839 (FC2QFN)
MAX77839QEVKIT: Board Photo
MAXESSENTIAL02EP
Essential Analog Efficient Power Toolkit for the MAXM38643 / MAX38640 / MAX77839 / MAXM17225 / MAX17227A / MAX38889 / MAX38902C / MAX38913 / MAX77827

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