RT9004 데이터 시트보기 (PDF) - Richtek Technology

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RT9004

300mA, Low Noise, Ultra-Fast CMOS Triple LDOs Regulator

Richtek Technology 

RT9004

Typical Application Circuit

Preliminary

VIN

Chip Enable

Chip Shutdown

CIN

2.2uF

RT9004

VIN1 VOUT1

VIN2 VOUT2

VIN3 VOUT3

EN1

EN2

GND

EN3

VIN1

VIN2

VIN3

CIN

1uF

Chip Enable

Chip Shutdown

RT9004

VIN1 VOUT1

VIN2 VOUT2

VIN3 VOUT3

EN1

EN2

GND

EN3

VOUT1

VOUT2

VOUT3

COUT

1uF

VOUT1

VOUT2

VOUT3

COUT

1uF

Functional Pin Description

Pin Number Pin Nam e

Pin Function

1

VOUT1 Output Voltage 1.

2

VOUT2 Output Voltage 2.

3

GN D

Exposed Pad (11)

Ground. The exposed pad must be soldered to a large PCB and connected to GND

for maximum power dissipation.

4

VOUT3 Output Voltage 3.

Chip Enable 3 (Active High). Note that this pin is high impedance. There should be a

5

EN3

pull low 100kΩ resistor connected to GND when the control signal is floating.

6

VIN3

Input Voltage 3.

Chip Enable 2 (Active High). Note that this pin is high impedance. There should be a

7

EN2

pull low 100kΩ resistor connected to GND when the control signal is floating.

8

VIN2

Input Voltage 2.

Chip Enable 1 (Active High). Note that this pin is high impedance. There should be a

9

EN1

pull low 100kΩ resistor connected to GND when the control signal is floating.

10

VIN1

Input Voltage 1.

www.richtek.com

2

DS9004-00 February 2008

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