LTC1530

PRODUCTION

High Power Synchronous Switching Regulator Controller

Data Sheet Product Selection Table
Viewing:

Overview

  • High Power Buck Converter from 5V or 3.3V Input
  • Adjustable Current Limit in S0-8 with Topside FET RDS(ON) Sensing
  • No External Sense Resistor Required
  • Hiccup Mode Current Limit Protection
  • Adjustable, Fixed 1.9V, 2.5V, 2.8V and 3.3V Output
  • All N-Channel MOSFET Synchronous Driver
  • Excellent Output Regulation: ±2% over Line, Load and Temperature Variations
  • High Efficiency: Over 95% Possible
  • Fast Transient Response
  • Fixed 300kHz Frequency Operation
  • Internal Soft-Start Circuit
  • Quiescent Current: 1mA; 45µA in Shutdown

The LTC1530 is a high power synchronous switching regulator controller optimized for 5V to 1.3V-3.5V output applications. Its synchronous switching architecture drives two external N-channel MOSFET devices to provide high efficiency. The LTC1530 contains a precision trimmed reference and feedback system that provides worst-case output voltage regulation of ±2% over temperature, load current and line voltage shifts. Current limit circuitry senses the output current through the on-resistance of the topside N-channel MOSFET, providing an adjustable current limit without requiring an external low value sense resistor.

The LTC1530 includes a fixed frequency PWM oscillator that free runs at 300kHz, providing greater than 90% efficiency in converter designs from 1A to 20A of output current. Shutdown mode drops the LTC1530 supply current to 45µA.

The LTC1530 is specified for commercial and industrial temperature ranges and is available in the S0-8 package.

Applications

  • Power Supply for Pentium® II, AMD-K6®-2, SPARC, ALPHA and PA-RISC Microprocessors
  • High Power 5V to 1.3V-3.5V Regulators
LTC1530
High Power Synchronous Switching Regulator Controller
Figure 1. Single 5V to 3.3V Supply Efficiency vs Load Current Product Package 1
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Application Note 2

Technical Articles 1

Spec Notice 1

Data Sheet

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

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • LTC1530
  • LTC1530-1.9
  • LTC1530-2.5
  • LTC1530-2.8
  • LTC1530-3.3
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
DC235A

LTC1530CS8 | High Efficiency Boost Regulator, 3.3VIN, 5VOUT @ 5A

Buy Now View Details

Product Details

DC235A: Demo Board for the LTC1530 High Power Synchronous Switching Regulator Controller.
DC235A
LTC1530CS8 | High Efficiency Boost Regulator, 3.3VIN, 5VOUT @ 5A
DC235A - Schematic

Latest Discussions

No discussions on LTC1530 yet. Have something to say?

Start a Discussion on EngineerZone®

Recently Viewed