LTC7510

1

7510fa

TYPICAL APPLICATION

FEATURES

APPLICATIONS

DESCRIPTION

Digital DC/DC Controller

with PMBus Interface

The LTC

non-volatile memory and PMBus interface for real time

reporting and control of point-of-load (POL) power

management. Power supply sequencing, margining, turn-

on/-off and fault detection are easily programmed via the

PMBus interface.

The LTC7510 uses a digital control loop which eliminates

external compensation components. The controller sup-

ports current sharing of multiple ICs; up to four controllers

can be synchronized for multiphase operation.

The LTC7510 provides superior accuracy through

internal calibration to correct current sense error

sources upon start-up and programmable temperature

compensation provides accurate current sensing over

temperature. The LTC7510 is available in a 32-lead (5mm

× 5mm) QFN package.

■

Telemetry

■

Digital PID Control Loop

■

■

Optional Resistor-Based PMBus Address, Output

Voltage, Frequency and Current Limit Set

■

150kHz to 2MHz Switching Frequency

■

DCR Current Sense with Temperature Compensation

■

Adjustable Active Voltage Positioning (AVP) Control

■

On-Chip Non-Volatile Memory (NVM) for

Configuration Storage

■

Soft-Start Into Pre-Biased Load

■

Current Sharing

■

32-Lead (5mm × 5mm) QFN Package

■

Digital Power System Management

■

Intelligent Point-of-Load (POL) Power Regulation

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

DC/DC Controller with Read/Write PMBus Digital Interface

LTC7510

GND

PWM

SDA

SCL

SMBALERT_N

PWRGD

OUTEN

FAULT1

FAULT2

TEMPSEN

SADDR_M

OPTIONAL

VINSEN

SADDR_L

+12V

SMBus

INTERFACE

+5V

RTN

7510 TA01

LOAD

TS

TG

BG

IN

GND

POWER

MANAGEMENT

INTERFACE

FAULT

OUTPUTS

BOOST

LTC4443-1