RT9172S-29CG 데이터 시트보기 (PDF) - Richtek Technology
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RT9172S-29CG Datasheet PDF : 16 Pages
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RT9172
Preliminary
Part Number
RT9172N-
CT5
RT9172F-
CT5
(Plastic TO-220-5)
RT9172N-
CM5
RT9172F-
CM5
(Plastic TO-263-5)
Pin Configurations
TOP VIEW
12 3 4 5
1. EN
2. VIN
3. GND (TAB)
4. VOUT
5. SENSE/FLG
TOP VIEW
12 3 4 5
1. EN
2. VIN
3. GND (TAB)
4. VOUT
5. SENSE/FLG
Part Number
RT9172S-
CT5
(Plastic TO-220-5)
RT9172S-
CM5
(Plastic TO-263-5)
Pin Configurations
TOP VIEW
12 3 4 5
1. VIN
2. EN
3. GND (TAB)
4. SENSE
5. VOUT
TOP VIEW
12 34 5
1. VIN
2. EN
3. GND (TAB)
4. SENSE
5. VOUT
Typical Application Circuit
VIN = 3.3V
CIN
1µF
RT9172-25
VIN
VOUT
GND
V2.O5UVT, 3A
COUT
Fig. 1
VIN = 3.3V
CIN
10µF
RT9172N-25
VIN
VOUT
EN GND SENSE
Trace resistance = Rt
VLOAD = 2.5V
ILOAD
L
COUT
O
A
D
VIN = 3.3V
CIN
10µF
Fig. 2
RT9172F-25
VIN
VOUT
Trace resistance = Rt
VOUT = 2.5V
VLOAD = 2.5V-ILOADRt
10K
EN
10K
GND FLG
ILOAD
L
COUT
O
A
D
Fig. 3
Recommend COUT: (1) 10µF (or larger) electrolytic or tantalum capacitance
(2) 1µF or 10µF ceromic capacitor parrell with 100µF electrolytic or tantalum capacitance
www.richtek-ic.com.tw
2
DS9172-03 April 2002
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