FX5545G108 datasheet(3/6 Pages) VISHAY

Part #	FX5545G108

Description	The Smallest and Low Profile 0.9V to 4.5V, 4A with 570W/in^3 Power Density Efficiency up to 95% DC/DC Buck Converter

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Manufacturer	VISHAY [Vishay Siliconix]

Direct Link	http://www.vishay.com

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3 / 6 page

Document Number: 10131

For technical questions, contact FunctionPAK@vishay.com

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Revision: 21-Jan-05

41

FX5545G108

Vishay

*Note: WD = Power Dissipated

STANDARD ELECTRICAL SPECIFICATIONS

PARAMETER

UNIT

CONDITION

MIN

TYP

MAX

Input

Voltage Range

VDC

2.5

6

Quiescent Current

µA

PSM mode

200

Soft Start Time

ms

TSS

6

SD, PWM/PSM,SYNC

Logic High

V

VH

2.4

Logic Low

V

VL

0.8

Normal Mode

µA

IDD

750

PSM Mode

µA

IDD

250

Shutdown Mode

µA

IDD

1

Shutdown Time

ms

TSS

5.5

Insulation

Test Voltage

VAC

60Hz 60sec

750

Resistance

Ω

VISO = 500 VDC

1 x 1011

Leakage Current

nA

VISO = 500 VDC

5

Output

Power

W

15

Voltage

VDC

0.9 to 4.5

Voltage Tolerance

%

at 25 °C Ambient Temperature

- 3

+3

Temp. Coefficient

%/°C

0.03

Ripple and Noise

mVpp

DC to 20 MHz

65

General

Package Weight

gr.

1.4

Oscillator

Frequency

KHz

400

SYNC Range

FSYNC/FOSC

1.2

1.5

Temperature

Operation

°C

- 40

+ 85

Storage

°C

- 55

+ 125

Operating Junction Temp.

°C

Tj

150

Thermal Impedance

°C/WD*

θJA

82

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