LTC3883 datasheet(22/22 Pages) LINER

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LTC3870

3870fb

For more information www.linear.com/LTC3870

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LINEAR TECHNOLOGY CORPORATION 2014

LT 0715 REV B • PRINTED IN USA

LinearTechnology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408)432-1900 ● FAX: (408) 434-0507 ● www.linear.com/LTC3870

relaTeD parTs

Typical applicaTion

PART NUMBER

DESCRIPTION

COMMENTS

LTC3886

60V Dual Output Step-Down Controller

with Digital Power System Management

4.5V ≤ VIN ≤ 60V, 0.5V ≤ VOUT ≤ 13.8V, Programmable Loop Compensation,

Input Current Sense

LTM4676/

LTM4676A

Dual 13A or Single 26A Step-Down DC/DC µModule

Regulator with Digital Power System Management

4.5V ≤ VIN ≤ 17V/26.5V, 0.5V ≤ VOUT ≤ 4V/5.5V, ±1% VOUT Accuracy,

Fault Logging, I2C/PMBus Interface, 16mm × 16mm × 5mm, BGA Package

LTC3887/

LTC3887-1

Dual Output Multiphase Step-Down DC/DC Controller

with Digital Power System Management, 70ms Start-Up

4.5V ≤ VIN ≤ 24V, 0.5V ≤ VOUT ≤ 5.5V, 70mS Start-Up, Analog Control Loop,

I2C/PMBus Interface, -1 Version Drives DrMOS and Power Blocks

LTC3880/

LTC3880-1

Dual Output Multiphase Step-Down DC/DC Controller

with Digital Power System Management

4.5V ≤ VIN ≤ 24V, 0.5V ≤ VOUT0 ≤ 5.4V, Analog Control Loop,

I2C/PMBus Interface with EEPROM and 16-Bit ADC

LTC3883/

LTC3883-1

Single Phase Step-Down DC/DC Controller

with Digital Power System Management

VIN Up to 24V, 0.5V ≤ VOUT ≤ 5.5V, Input Current Sense Amplifier,

I2C/PMBus Interface with EEPROM and 16-Bit ADC

LTC3882

Dual Output Multiphase Step-Down DC/DC Voltage Mode

Controller with Digital Power System Management

VIN Up to 38V, 0.5V ≤ VOUT1,2 ≤ 5.25V, ±0.5% VOUT Accuracy

I2C/PMBus Interface, Drives DrMOS and Power Blocks

LTC3892-1

60V Low IQ Dual, 2-Phase Synchronous Step-Down

DC/DC Controller

VIN Up to 60V, 0.8V ≤ VOUT ≤ 99%•VIN, 29µA Quiescent Current Adjustable

Gate Drive Voltage

LTC2977

8-Channel PMBus Power System Manager Featuring

Accurate Output Voltage Measurement

Sequence and Supervise Eight Power Supplies Margin or Trim Supplies to

0.25% Accuracy

VIN

6V TO 24V

5VCC

4.7µF

PHASMD

FREQ

BOOST0

BOOST1

TG0

TG1

SW0

SW1

BG0

BG1

PGND

* REFER TO LTC3880 DATA SHEET

FIGURE TA04 FOR MASTER SETUP

LTC3870

RUN0

SYNC

RUN1

FAULT0

FAULT1

MODE0

MODE1

SGND

0.1µF

1000pF

100

0.42µH 0.0015

RUN0

GPIO0

GPIO1

RUN1

SYNC

ITH0

ITH1

VSENSE0+

EXTVCC

5VCC

ISENSE0+

ISENSE0–

1000pF

ISENSE1+

ISENSE1–

ITH0

ITH1

VSENSE1

LTC3880-1*

1.5V

84.5k

100

530µF

VOUT

1.5V

80A

VIN

INTVCC

EXTVCC

ILIM

3870 TA04

4-Phase 1.5V Step-Down Converter with Sensing Resistors and External VCC

LTC3883 Datasheet(PDF) 22 Page - Linear Technology

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