RT9172 datasheet(2/16 Pages) RICHTEK

2 / 16 page

RT9172

Preliminary

www.richtek-ic.com.tw

DS9172-03 April 2002

Part Number

Pin Configurations

RT9172N-

CT5

RT9172F-

CT5

(Plastic TO-220-5)

TOP VIEW

1. EN

2. VIN

3. GND (TAB)

4. VOUT

5. SENSE/FLG

RT9172N-

CM5

RT9172F-

CM5

(Plastic TO-263-5)

TOP VIEW

1. EN

2. VIN

3. GND (TAB)

4. VOUT

5. SENSE/FLG

Part Number

Pin Configurations

RT9172S-

CT5

(Plastic TO-220-5)

TOP VIEW

1. VIN

2. EN

3. GND (TAB)

4. SENSE

5. VOUT

RT9172S-

CM5

(Plastic TO-263-5)

TOP VIEW

1. VIN

2. EN

3. GND (TAB)

4. SENSE

5. VOUT

Typical Application Circuit

Fig. 1

Fig. 2

Fig. 3

Recommend COUT: (1) 10

µF (or larger) electrolytic or tantalum capacitance

(2) 1

µF or 10µF ceromic capacitor parrell with 100µF electrolytic or tantalum capacitance

VIN = 3.3V

VIN

VOUT

GND

COUT

VOUT

2.5V, 3A

CIN

µF

RT9172-25

VIN

VOUT

GND SENSE

COUT

ILOAD

VLOAD = 2.5V

RT9172N-25

VIN = 3.3V

CIN

µF

Trace resistance = Rt

VIN

VOUT

GND

FLG

COUT

10K

VOUT = 2.5V

ILOAD

Trace resistance = Rt

VLOAD = 2.5V-ILOADRt

RT9172F-25

VIN = 3.3V

CIN

µF

1 2 345

12 3 4 5

RT9172 Datasheet(PDF) 2 Page - Richtek Technology Corporation

RT9172 Datasheet(HTML) 2 Page - Richtek Technology Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Datasheet Download

Link URL