MAX77837

RECOMMENDED FOR NEW DESIGNS

5.5V Input, 0.4A/1.05A Switching Current Buck-Boost Converter with 400nA IQ

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: Starting From $0.82

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Overview

1.8V to 5.5V Input Voltage
Output Voltages Combination from 1.8V to 5.2V
Peak Efficiency of 95% (5.5V_IN, 3.8V_OUT)
430nA Typical Quiescent current
10nA Shutdown Current
R_SEL Configurations
- OUT1 and OUT2
- 1.05A or 0.4A Switch Current Limit
- DVS Function On or Off
- Hiccup or Latch-Off Mode

Protections Features
- Input Undervoltage Lockout (UVLO)
- Overcurrent protection (OCP)
- Thermal Shutdown
1.84mm x 1.03mm, 8-Bump WLP
2.5mm x 2.0mm, 8-Lead FC2QFN

Part Models: 2
1ku List Price: Starting From $0.82

Documentation

Data Sheet 1

MAX77837: 5.5V Input, 0.4A/1.05A Switching Current Buck-Boost Converter with 400nA IQ Data Sheet (Rev.0) 03/07/2023

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX77837EWA+	WLCSP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
MAX77837EWA+T	WLCSP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 21, 2025 - 2453N ASSEMBLY
		pcn_2453n
MAX77837EWA+	PRODUCTION
MAX77837EWA+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

ADI Power Studio™ Designer

ADI Power Studio™ Designer is the next-generation tool for IC-level, power supply design, guiding engineers to faster, validated solutions.

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SIMPLIS Models 1

MAX77837 SIMPLIS Schematics

Evaluation Kits

Evaluation Kit for MAX77837 in WLP Package

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Features and Benefits

1.8V to 5.5V Input Voltage
Accessible Test points for INS and OUTS
Output Voltage (OUT1 and OUT2) adjustable using R_SEL1
Switch current limit, DVS function, and Hiccup or Latchoff mode operation
Sense sockets for high-accuracy measurements

Product Details

The MAX77837 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB) that demonstrating the MAX77837 nano power buck-boost converter. The EV kit has an input range of 1.8V to 5.5V, with a switch current limit of 1.05A.

The MAX77837 IC has two hardware control pins, SEL1 and SEL2. The resistor connected at SEL1 (R_SEL1) selects a predefined combination of two output voltages between 1.8V and 5.2V, OUT1 and OUT2. The resistor connected at SEL2 (R_SEL2) allows different configurations of switch current limit to optimize external components size, enable or disable DVS function, select either hiccup or latch-off mode, and IC startup voltage.

The EV kit is compatible with MAX77837 WLP IC (MAX77837EWA+T) and equipped with test points and jumpers to test most of the device's functionality. In addition, there are probing sockets on critical nodes (OUT-1, LX1, and LX2) for precise measurements.

Resources

MAX77837EVKIT ODB Files
3/7/2023

Reference Designs

Multistandard Micropower Verified Smoke Detection System-on-Module

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Features and Benefits

The CN0583 reference design plus related software is designed and tested to meet UL 217 8th edition, EN14604:2005, and similar smoke/fire detection standards. To address the needs of different customers, a number of solution offerings are available which are summarized in the table below.

The hardware is designed to accelerate prototyping and the evaluation of the embedded smoke detection algorithm. The hardware is comprised of the EVAL-CN0583-SOM and EVAL-CN0583-CRR1 Carrier Board.

The Data package (ADSW-SMOKEDATA-PRODLIC) provides an extensive (1000+) smoke dataset taken at UL 217 and EN14604 certified facilities for those who wish to develop their own algorithm. It includes the CN0583 source code for initialization, calibration, environmental compensation, data pre-processing - but excludes the detection algorithm.

The Algorithm package (ADSW-SMOKEDATA-PRODLIC) includes everything in the Data package and adds UL & EN validated smoke detection algorithm and associated algorithm project files.