MAX1953EUB+ - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number

MAX1953EUB+

Manufacturer

Analog Devices

Introduction

High-efficiency, step-down DC-DC switching controller for power management applications

Product Features and Performance

High switching frequency of 1MHz allowing small inductors and capacitors

Integrated synchronous rectifier for improved efficiency

Step-down (Buck) topology for efficient voltage conversion

Support for a wide input voltage range from 3V to 5.5V

Capable of driving a single output with up to 89% maximum duty cycle

Current limiting control feature enhances protection

High performance across the operating temperature range of -40°C to 85°C

Product Advantages

Higher efficiency through synchronous rectification

Compact design enabled by high switching frequency

Broad compatibility with various supply voltages

Reliable over an extended temperature range

Low shutdown current optimizing battery life

Key Technical Parameters

Voltage Supply (Vcc/Vdd): 3V ~ 5.5V

Key Performance: 1MHz switching frequency, 89% duty cycle

Output Type: Transistor Driver

Function: Step-Down

Output Configuration: Positive

Topology: Buck

Number of Outputs: 1

Output Phases: 1

Control Features: Current Limit

Quality and Safety Features

Thermal overload protection

Current limit for safe operation

Compatibility

Compatible with various input sources within voltage range

Surface Mount mounting type for mainstream PCB technology

Application Areas

Portable devices

Embedded systems

Power Management Solutions

Product Lifecycle

Product Status: Active

Not nearing discontinuation

Replacement or upgrade options typically available through manufacturer product line

Several Key Reasons to Choose This Product

High-efficiency power conversion reduces heat and improves battery life

1MHz frequency enables compact and lightweight power supply design

Wide input voltage range ensures compatibility with different power sources

Current limiting feature provides inherent protection against overcurrent conditions

Robust design with a wide operating temperature range suits challenging environments

Active product status means ongoing manufacturer support and availability