MAXM20344

PRODUCTION

0.5V to 5.5V, 2.5W Himalaya uSLIC Step-Up/Down Power Modules

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • Easy to Use 
    • Wide 0.5V to 5.5V Input
    • Adjustable 2.5V to 5.5V Output
    • Up to 2.5W Output Power
    • Internally Compensated;
    • All Ceramic Capacitors, Compact Layout
    • Low Profile, Compact 20-Pin,
    • 3.5mm × 3.5mm × 1.35mm, uSLIC Package
  • High Efficiency
    • Peak Efficiency of 95%
    • Adaptive Frequency to Increase Efficiency at Light Loads
    • 3.5μA Quiescent Current
  • Flexible Design
    • Internal Soft-Start
    • Prebias Startup in MAXM20344;
    • Open-Drain Input Power Good (INGOOD Pin)
    • Open-Drain Output Power Good (PGOOD Pin)
  • Robust Operation
    • Overcurrent, Overtemperature Protection
    • Wide -40oC to +125oC Ambient Operating Temperature/ -40oC to +150oC Junction Temperature
    • Complies with CISPR32 Class B Conducted and Radiated Emissions;
    • Passes Drop, Shock, and Vibration Standards: JESD22-B103, B104, B111

The MAXM20343 and MAXM20344 are ultra-low quiescent current, non-inverting buck-boost, Himalaya modules with an integrated inductor. The MAXM20343 and MAXM20344 operate over a wide input range of 0.5V to 5.5V, support up to 2.5W output power and allow the use of small, low-cost input and output capacitors. The output voltage can be adjusted from 2.5V to 5.5V. The modules significantly reduce design complexity, manufacturing risks and offer a true plug-and-play power supply solution, reducing time-to-market.

The MAXM20343 and MAXM20344 employ a unique control algorithm that transitions between buck, buck boost, and boost modes of operation, minimizing discontinuities and sub-harmonics in the output voltage ripple. Both modules use an adaptive frequency mechanism to increase the efficiency at light loads. The low 1.9V startup input voltage allows users to power the modules from a variety of sources and the 0.5V minimum operating voltage offers the ability to extract as much energy as possible from the source. The MAXM20343 offers active discharge upon shutdown for fast decay of output voltage. The MAXM20344 does not offer active discharge upon shutdown but supports applications that have prebiased output voltage.

Applications

  • Industrial Sensors
  • Low-Power WAN
  • Wearables, IoT
MAXM20344
0.5V to 5.5V, 2.5W Himalaya uSLIC Step-Up/Down Power Modules
MAXM20343-MAXM20344 Functional Block DIagram MAXM20343-MAXM20344 Simplified Application Diagram MAXM20343-MAXM20344 Typical Application
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Documentation

Data Sheet 1

User Guide 1

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Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
MAXM20343EVKIT/
MAXM20344EVKIT

Evaluates: MAXM20343 and MAXM20344 Modules in 3.3V and 5V Output-Voltage Application

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Features and Benefits

  • 0.5V to 5.5V Input Range
  • MAXM20343 Offers High 94% Efficiency (VIN = 3.3V, VOUT = 3.3V, IOUT = 300mA)
  • MAXM20344 Offers High 94.5% Efficiency (VIN = 3.3V, VOUT = 5V, IOUT = 300mA)
  • Fixed 32ms Soft-Start Time
  • INGOOD and PGOOD Outputs with Pullup Resistor to the Respective OUT
  • Low-Profile, Surface-Mount Components
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAXM20343/MAXM20344 evaluation boards provide a proven design to evaluate the performance of the MAXM20343/MAXM20344 modules. Each of these modules operate over an input range from 0.5V to 5.5V and deliver up to 2.5W output power. The modules are configured to demonstrate optimum performance and component sizes in the evaluation boards.

The MAXM20343 module is configured for a 3.3V output, delivering up to 2.5W, over a 0.5V to 5.5V input range.

The MAXM20344 module is configured for a 5V output, delivering up to 2.5W, over a 0.5V to 5.5V input range.

The evaluation boards feature fixed soft-start, INGOOD and PGOOD signals. The MAXM20343/MAXM20344 module family data sheet provides a complete description of the parts that should be read in conjunction with this data sheet prior to operating the evaluation boards.
MAXM20343EVKIT/
MAXM20344EVKIT
Evaluates: MAXM20343 and MAXM20344 Modules in 3.3V and 5V Output-Voltage Application
MAXM20343EVKIT/MAXM20344EVKIT Board Photo Angle View MAXM20343EVKIT/MAXM20344EVKIT Board Photo Top View MAXM20343EVKIT/MAXM20344EVKIT Board Photo Bottom View

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