LTM4650 datasheet(1/38 Pages) AD

部品番号	LTM4650

部品情報	Source/Sink Dual ±25A or Single ±50A μModule Regulator with Input Overvoltage Protection

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LTM4652

1

Rev. 0

For more information www.analog.com

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TYPICAL APPLICATION

FEATURES

DESCRIPTION

Source/Sink Dual ±25A or Single ±50A µModule

Regulator with Input Overvoltage Protection

The LTM®4652 is a source/sink dual ±25A or single ±50A

output switching mode step-down DC/DC µModule®

(micromodule) regulator with ±1.5% total DC output

error. Included in the package are the switching con-

trollers, power MOSFETs, inductors and all supporting

components. Operating from an input voltage range of

4.5V to 18V, the LTM4652 supports two outputs with an

output voltage range of 0.6V to 7.5V, each set by a single

external resistor. Its high efficiency design delivers up to

±25A continuous current for each output. Only a few input

and output capacitors are needed. Adjustable control loop

compensation allows for fast transient response to min-

imize output capacitance when powering FPGAs, ASICs,

and processors.

Fault protection features include input and output over-

voltage and bidirectional overcurrent protection. The

LTM4652 is offered in a 16mm × 16mm × 4.92mm

BGA package.

±50A, 3.3V Bidirectional Output DC/DC µModule Regulator

with Input Overvoltage Protection

APPLICATIONS

n

Dual ±25A or Single ±50A Output Source/Sink

n

Input Voltage Range: 4.5V to 18V (20V Abs Max)

n

Output Voltage Range: 0.6V to 7.5V (8V Abs Max)

n

±1.5% Maximum Total DC Output Error Over Line,

Load and Temperature

n

Adjustable Control Loop Compensation

n

Differential Remote Sense Amplifier

n

Current Mode Control/Fast Transient Response

n

Multiphase Parallel Current Sharing Up to ±300A

n

Internal Temperature Monitor

n

Adjustable Switching Frequency or Synchronization

n

Overcurrent Foldback Protection

n

Selectable Pulse-Skipping Mode Operation

n

Soft-Start/Voltage Tracking

n

Input and Output Overvoltage Protection

n

16mm × 16mm × 4.92mm BGA Package

n

Test and Measurement Instrumentation

n

Telecom and Networking Equipment

n

Industrial Equipment

3.3VOUT Efficiency vs IOUT

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

by U.S. Patents, including 5481178, 5705919, 5929620, 6100678, 6144194, 6177787, 6304066

and 6580258. Other patents pending.

5VIN

12VIN

OUTPUT CURRENT (A)

–50 –40 –30 –20 –10 0 10 20 30 40 50

80

82

84

86

88

90

92

94

96

98

100

4652 TA01b

4652 TA01a

LTM4652

VIN

VINOVP

RUN1

RUN2

TRACK1

TRACK2

fSET

470µF

6.3V

13.3k

100µF

6.3V

PHASMD

VOUT1

VOUTS1

VFB1

VFB2

COMP1

COMP2

VOUT2

PGOOD2

MODE_PLLIN

PINS UNUSED IN

THIS APPLICATION:

CLKOUT, EXTVCC,

SW1, SW2, VOUTS2,

TEMP+, TEMP–

INTVCC

PGOOD1

PGOOD

10k

SGND

GND

DIFFP

DIFFN

DIFFOUT

RTH

CTH

100µF

6.3V

845k

0.1µF

22µF

25V

×4

+

VIN

4.5V TO 18V

4.7µF

140k

VOUT

3.3V

±50A

470µF

6.3V

同様の部品番号 - LTM4650

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同様の説明 - LTM4650

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