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UTC BA9741A

LINEAR INTEGRATED CIRCUIT

TWO-CHANNEL SWITCHING

REGULATOR CONTORLLER

DESCRIPTION

The UTC BA9741A is a two-channel switching

regulator controllers that use the PWM method.

It can be used for DC to DC conversion for step-up,

step-down, and inverting. The IC comes in a compact

package, making it ideal for use in portable equipment.

SOP-16

FEATURES

*High-accuracy reference voltage circuit (鹵1%).

*Time-latch, short-circuit protection circuit.

*Miss-operation prevention circuit for low-voltage input

*Reference voltage with output (2.5V)

*Rest period adjustment is possible over the entire duty

*range.

TSSOP-16

APPLICATION

*DC/DC converters for video cameras and notebook

computers etc.

DIP-16

PIN CONFIGURATIONS

CT

RT

1

2

16

15

VREF

SCP

ERROR

AMPLIFIER 2

NON1

3

ERROR

AMPLIFIER 1

INV1

4

FB1

DT1

OUT1

GND

14

NON2

13

INV2

12

11

10

9

FB2

DT2

OUT2

Vcc

5

6

7

8

UTC

UNISONIC TECHNOLOGIES CO., LTD.

1

QW-R103-019,A

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