LTM4686BIVPBF datasheet(1/130 Pages) AD

部件名	LTM4686BIVPBF

功能描述	Ultrathin Dual 14A or Single 28A 關Module Regulator with Digital Power System Management

PDF	130 Pages

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制造商	AD [Analog Devices]

网页	http://www.analog.com

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LTM4686B

1

Rev. 0

For more information www.analog.com

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All registered trademarks and trademarks are the property of their respective owners. Protected

by U.S. Patents including 5408150, 5481178, 5705919, 5929620, 6144194, 6177787, 6580258,

7420359, 8163643. Licensed under U.S. Patent 7000125 and other related patents worldwide.

TYPICAL APPLICATION

FEATURES

DESCRIPTION

Ultrathin Dual 14A or Single 28A μModule Regulator

with Digital Power System Management

The LTM®4686B is a dual 14A (17A peak) or single 28A

(34A peak) step-down µModule® (micromodule) DC/

DC regulator with 39ms turn-on time. It features remote

configurability and telemetry-monitoring of power man-

agement parameters over PMBus—an open standard

I2C-based digital interface protocol . The LTM4686B is

comprised of fast analog control loops, precision mixed-

signal circuitry, EEPROM, power MOSFETs, inductors

and supporting components. A video on ultrathin module

products is available on the website. Click here .

The LTM4686B’s 2-wire serial interface allows outputs to be

margined, tuned and ramped up and down at programmable

slew rates with sequencing delay times. Input and output

currents and voltages, output power, temperature, uptime

and peak values are readable. Custom configuration of the

EEPROM contents is not required. Pin-strap resistors con-

figure start-up settings. The LTpowerPlay® GUI, DC1613

USB-to-PMBus converter, DC2086 programming adapter

and demo kits are available.

Pb-free and RoHS compliant, the LTM4686B is available

in a 16mm × 11.9mm × 1.82mm LGA package.

APPLICATIONS

n

Dual, Fast, Analog Loops with Digital Interface for

Control and Monitoring

n

Input Voltage Range: 4.5V to 5.75V Standalone,

2.375V to 5.75V with Aux 5V Bias

n

Output Voltage Range: 0.5V to 3.6V

n

±0.5% Maximum DC Output Error Over Temperature

n

14A DC Typical, 17A Peak Output Current, per Channel

n

±10% Current Readback Accuracy at 10A Load

n

400kHz PMBus-Compliant I2C Serial Interface

n

Integrated 16-Bit ∆Σ ADC

n

Supports Telemetry Polling Rates Up to 125Hz

n

Constant Frequency Current Mode Control

n

Parallel and Current Share Multiple Modules

n

All 7-Bit Slave Addresses Supported

n

Drop-In Pin-Compatible to Dual 10A LTM4686 and

Dual 9A LTM4675 and Dual 13A LTM4676A and Dual

18A LTM4677

n

16mm × 11.9mm × 1.82mm LGA Package

Readable Data

n

Input and Output Voltages, Currents, and Temperatures

n

Running Peak Values, Uptime, Faults and Warnings

n

Onboard EEPROM with ECC and Fault Log Record

Writable Data and Configurable Parameters

n

Output Voltage, Voltage Sequencing and Margining

n

Digital Soft-Start/Stop Ramp

n

OV/UV/OT, UVLO, Frequency and Phasing

n

System Optimization in Prototype and Production

Dual 14A µModule Regulator with Digital

Interface for Control and Monitoring*

Using PMBus and LTpowerPlay to Monitor Telemetry and Margin

VOUT0/VOUT1 During Load Pattern Tests; 10Hz Polling Rate; 3.3VIN

Click to view associated Video Design Idea.

22µF

×2

ON/OFF

CONTROL

FAULT INTERRUPTS,

POWER SEQUENCING

PWM CLOCK AND

TIME-BASE

SYNCHRONIZATION

VIN

2.7V TO

5.5V

VOSNS0–

VOUT0,

ADJUSTABLE

UP TO 14A (17A PEAK)

100µF

×4

VOSNS0+

VOUT0

VIN0

VIN1

SVIN

INTVCC

VOUT1,

ADJUSTABLE

UP TO 14A (17A PEAK)

100µF

×4

I2C/SMBus I/F WITH

PMBus COMMAND SET

TO/FROM IPMI OR OTHER

BOARD MANAGEMENT

CONTROLLER

LOAD1

RUN0

RUN1

WP

*FOR COMPLETE CIRCUIT, SEE FIGURE 32.

LTM4686B

GND

4686B TA01a

SGND

SCL

SDA

ALERT

VOSNS1

VOUT1

GPIO0

GPIO1

REGISTER WRITE

PROTECTION

SYNC

SHARE_CLK

LTC3204B-5,

5VOUT

DC/DC

CHARGE-PUMP

LOAD0

Output Voltage Readback, VOUT Margined 10% Low

Power Stage Temperature Readback

Output Current Readback, Varying Load Pattern

Input Current Readback

1.1

1.0

0.9

0.8

1.9

1.8

1.7

1.6

0

3

6

TIME (s)

4686B TA01b

9

12

4

2

0

6

3

0

3

6

TIME (s)

4686B TA01d

9

12

10

5

0

10

5

0

3

6

TIME (s)

4686B TA01c

9

12

60

57

54

51

60

57

54

51

0

3

6

TIME (s)

4686B TA01e

9

12

类似零件编号 - LTM4686BIVPBF

制造商	部件名	数据表	功能描述
Analog Devices	LTM4686B	5Mb / 132P	Low VOUT Quad 31.25A or Single 125A μModule Regulator with Digital Power System Management Rev. 0
Analog Devices	LTM4686B	4Mb / 130P	Low Profile Quad 31.25A or Single 125A μModule Regulator with Digital Power System Management Rev. 0

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类似说明 - LTM4686BIVPBF

制造商	部件名	数据表	功能描述
Linear Technology	LTM4676A	1Mb / 130P	Dual 13A or Single 26A Module Regulator with Digital Power System Management
	LTM4675	2Mb / 128P	Dual 9A or Single 18A Module Regulator with Digital Power System Management
	LTM4676	1Mb / 78P	Dual 13A or Single 26A Module Regulator with Digital Power System Management
	LTM4622	451Kb / 28P	Dual Ultrathin 2.5A or Single 5A Step-Down DC/DC 關Module Regulator
	LTM4631	975Kb / 34P	Ultrathin Dual 10A or Single 20A DC/DC 關Module Regulator
	LTM4676A	2Mb / 136P	Dual 13A or Single 26A 關Module Regulator with Digital Power System Management
Analog Devices	LTM4678	6Mb / 124P	Dual 25A or Single 50A 關Module Regulator with Digital Power System Management
	LTM4681	3Mb / 132P	Quad 31.25A or Single 125A 關Module Regulator with Digital Power System Management
	LTM4664A	6Mb / 138P	30V to 58V Input, Dual 30A, Single 60A 關Module Regulator with Digital Power System Management
	LTM4700	3Mb / 126P	Dual 50A or Single 100A μModule Regulator with Digital Power System Management