LM1770UMF - Texas Instruments

Manufacturer Part Number

LM1770UMF

Manufacturer

Texas Instruments

Introduction

The LM1770UMF is a high-performance, current mode, DC-DC switching controller that operates at frequencies up to 1 MHz.

Product Features and Performance

Operates at switching frequencies up to 1 MHz

Integrated high-side and low-side MOSFET drivers

Current mode control for easy loop compensation

Integrated soft-start and undervoltage lockout

Low quiescent current of 100 μA

Product Advantages

High-efficiency power conversion

Small solution size with integrated power MOSFETs

Excellent transient response

Easy to use with minimal external components

Key Technical Parameters

Operating Voltage: 2.8V to 5.5V

Output Configuration: Positive, Synchronous Rectifier

Switching Frequency: 100 kHz to 1 MHz

Topology: Buck (Step-Down)

Quality and Safety Features

Operating Temperature: -40°C to 125°C

Robust overcurrent and thermal protection

Compatibility

The LM1770UMF is compatible with a wide range of electronic devices and systems that require efficient, high-performance power conversion.

Application Areas

Portable electronics

Industrial control systems

Telecommunications equipment

Automotive electronics

Product Lifecycle

The LM1770UMF is an active and widely used product from Texas Instruments. Replacements and upgrades may be available, but the product is not nearing discontinuation.

Key Reasons to Choose the LM1770UMF

High-frequency operation for compact solution size

Excellent efficiency and transient response

Integrated power MOSFETs for simplified design

Robust protection features for reliable operation

Wide operating temperature range for versatile applications