LTM4677 datasheet(22/22 Pages) LINER

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LTC3874-1

38741f

For more information www.linear.com/LTC3874-1

LT 0917 • PRINTED IN USA

www.linear.com/LTC3874-1



LINEAR TECHNOLOGY CORPORATION 2017

relaTeD parTs

Typical applicaTion

PART NUMBER DESCRIPTION

COMMENTS

LTM4676A

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

with Digital Power System Management

4.5V ≤ VIN ≤17V; 0.5V ≤ VOUT (±0.5%) ≤ 5.5V, I2C/PMBus Interface,

16mm × 16mm × 5mm, BGA Package

LTM4675

Dual 9A or Single 18A μModule Regulator with Digital Power

System Management

4.5V ≤ VIN ≤17V; 0.5V ≤ VOUT (±0.5%) ≤ 5.5V, I2C/PMBus Interface,

11.9mm × 16mm × 5mm, BGA Package

LTM4677

Dual 18A or Single 36A μModule Regulator with Digital Power

System Management

4.5V ≤ VIN ≤16V; 0.5V ≤ VOUT (±0.5%) ≤ 1.8V, I2C/PMBus Interface,

16mm × 16mm × 5.01mm, BGA Package

LTC3884/

LTC3884-1

Dual Output Multiphase Step-Down Controller with Sub mΩ

DCR Sensing Current Mode Control and Digital Power System

Management

4.5V ≤ VIN ≤ 38V, 0.5V ≤ VOUT (±0.5%) ≤ 5.5V, 70ms Start-Up, I2C/

PMBus Interface, Programmable Analog Loop Compensation, Input

Current Sense

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 ≤ VOUT0,1 (±0.5%) ≤ 5.5V, 70ms Start-Up, I2C/

PMBus Interface, -1 Version Uses DrMOS or Power Blocks

LTC3882/

LTC3882-1

Dual Output Multiphase Step-Down DC/DC Voltage Mode

Controller with Digital Power System Management

3V ≤ VIN ≤ 38V, 0.5V ≤ VOUT1,2 ≤ 5.25V, ±0.5% VOUT Accuracy I2C/

PMBus Interface, Uses DrMOS or Power Blocks

LTC3866

Single Output Current Mode Synchronous Step-Down

Controller with Sub-Milliohm DCR Sensing

4.5V ≤ VIN ≤ 38V, 0.6V ≤ VOUT ≤ 3.5V, with Remote VOUT Sense, 4mm

× 4mm, QFN-24, TSSOP-24 Packages

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, ±0.5% VOUT Accuracy

LTC3875

Dual, Multiphase Current Mode Synchronous Step-Down

Controller with Sub-Milliohm DCR Sensing, Up to 12 Phases

4.5V ≤ VIN ≤ 38V, 0.6V ≤ VOUT ≤ 3.5V, with Remote Sense

LTC3774

Dual, Multiphase Current Mode Synchronous Step-Down

Controller with Sub-Milliohm DCR Sensing, Up to 12 Phases

VIN Up to 40V, 0.6V ≤ VOUT ≤ 3.5V, Very High Output Current

Applications with Accurate Current Share Between Phases

Supporting LTC3880/-1, LTC3883/-1, LTC3886, LTC3887/-1

LTC3877

Dual Phase Step-Down Synchronous Controller with 6-Bit VID

Output Voltage Programming and Low Value DCR Sensing

4.5V ≤ VIN ≤ 38V, 0.6V ≤ VOUT ≤ 1.23V with VID in 10mV Steps, 0.6V ≤

VOUT ≤ 5V without VID, Up to 12-Phase Operation

High Efficiency Dual 1.0V/1.5V Step-Down Converter

PWM0

PWM1

LTC3874-1

INTVCC

0.22µF

VCC0

VCC1

PHASMD

LDWDCR

ILIM

FREQ

GND

RUN0

SYNC

RUN1

FAULT0

FAULT1

RUN0

649

(0.29m DCR)

0.215µH

(0.29m DCR)

0.215µH

FAULT0

FAULT1

RUN1

SYNC

REFER TO LTC3884-1 DATA SHEET

FOR MASTER SETUP

PIN NOT USED IN THIS CIRCUIT: EXTVCC

ITH0

ITH1

VSENSE0+

1.5V

VOUT1

100µF

×3

100µF

×3

470µF

×2

VOUT0

60A

470µF

×2

LTC3884-1

ISENSE0+

ISENSE0–

ISENSE1+

ISENSE1–

ITH0

ITH1

VSENSE1+

VIN

7V TO 14V

VOUT1

1.5V

60A

VIN

PGOOD0

PGOOD1

MODE0

MODE1

3874 TA02

100k

DrMOS

0.22µF

4.7µF

649

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