MAX5022

Name: MAX5022
Brand: Analog Devices
Availability: InStock

PRODUCTION

Current-Mode PWM Controllers for Isolated Power Supplies

SOT23 Universal Off-Line Power Supply Controller

Data Sheet (Rev. 1) Product Selection Table

Part Models: 2
1ku List Price: Starting From $1.04

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Overview

Available in a Tiny 6-Pin SOT23 Package
50µA Typical Startup Current
1.2mA Typical Operating Current
Large UVLO Hysteresis of 14V
Fixed Switching Frequency of 262kHz ±12%
50% Maximum Duty Cycle Limit (MAX5021)
75% Maximum Duty Cycle Limit (MAX5022)
60ns Cycle-by-Cycle Current-Limit Response Time

Part Models: 2
1ku List Price: Starting From $1.04

Documentation

Data Sheet 1

MAX5021-MAX5022: Current-Mode PWM Controllers for Isolated Power Supplies Data Sheet (Rev.1) 12/24/2001

Technical Articles 1

Designing Compact Telecom Power Supplies 07/17/2002

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
MAX5022EUT+	Small-Outline Transistor Package	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
MAX5022EUT+T	Small-Outline Transistor Package	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 20, 2026 - 2571C PIN/ERRATA
		pcn_2571c
MAX5022EUT+T	PRODUCTION	pcn_2571c

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

Software Resources

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Evaluation Kits

Evaluation Kit for the MAX5022

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Features and Benefits

85VAC to 265VAC or 120VDC to 375VDC Input Range
Isolated Output Voltage: +5VDC at 1A
Input-to-Output Isolation Up to 4500VDC

Fully Assembled and Tested
Efficiency Up to 80%
2% Output Voltage Regulation Over Line and Load

Product Details

The MAX5022 evaluation kit (EV kit) is a fully assembled and tested 5W flyback converter circuit board. The power supply is configured for an isolated +5VDC output voltage that can supply up to 1A of current. The line input voltage range is from 85VAC to 265VAC or 120VDC to 375VDC.

The MAX5022 EV kit demonstrates high efficiency up to 80% at 262kHz switching frequency. This high efficiency is achieved by using a single transistor (MOSFET), flyback-converter topology providing output power up to 5W. The surface-mount transformer has a tertiary winding to power the MAX5022 IC after startup. An optocoupler along with the transformer provide input-to-output isolation up to 4500VDC.

Warning: The MAX5022 EV kit is designed to operate with high voltages. Dangerous voltages are present on this EV kit and on equipment connected to it. Users who power up this EV kit or the power sources connected to it must be careful to follow safety procedures appropriate for working with high-voltage electrical equipment.

Under severe fault or failure conditions, this EV kit may dissipate large amounts of power, which could result in the mechanical ejection of a component or of component debris at high velocity. Operate this kit with care to avoid possible personal injury.

Applications

Isolated Power Supplies
Low-Power Telecom Power Supplies
Mobile Phone Chargers
Standby Power Supplies
Universal Offline Power Supplies

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