MAX1653ESE - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number

MAX1653ESE

Manufacturer

Analog Devices

Introduction

The MAX1653ESE is a step-down (buck) switching controller designed for power management applications.

Product Features and Performance

High efficiency step-down voltage regulation

Adjustable output via external components

Capable of driving large load currents with external MOSFET

Soft-start feature to limit inrush current

Enable pin for power-saving shutdown mode

Tolerates wide range of input voltage (4.5V to 30V)

Supports high-frequency operation (up to 300kHz)

Integrated synchronous rectifier for improved efficiency

Clock synchronization for noise sensitive applications

Product Advantages

Efficient power conversion for longer battery life

Low external component count

Stable operation with ceramic capacitors

Thermal and current limit protection

Compact 16-SOIC package

Compatible with high-density surface mount technology

Key Technical Parameters

Output Type: Transistor Driver

Function: Step-Down

Output Configuration: Positive

Topology: Buck

Number of Outputs: 1

Output Phases: 1

Voltage - Supply (Vcc/Vdd): 4.5V ~ 30V

Frequency - Switching: 150kHz, 300kHz

Duty Cycle (Max): 98%

Synchronous Rectifier: Yes

Clock Sync: Yes

Control Features: Enable, Soft Start

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Built-in protection circuitry

Overtemperature shutdown

Cycle-by-cycle current limit

Compatibility

Suitable for use with high-density PCBs

Can be used with a variety of external MOSFETs

Application Areas

Point-of-Load (POL) applications

Portable devices

Networking and telecommunications equipment

Computer peripherals

Industrial electronics

Product Lifecycle

Obsolete; consider alternative solutions or consult manufacturer for last-time buy options and recommended replacement parts

Several Key Reasons to Choose This Product

Ideal for space-constrained applications due to compact form factor

Flexibility in design with adjustable output characteristics

High integration reduces BOM complexity and cost

Robust operation with comprehensive protection features

Synchronous rectification for maximal power efficiency

Ease of synchronization with other power rails for system-level performance enhancement