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RT9172F-15GT Datasheet(PDF) 7 Page - Richtek Technology Corporation

Part # RT9172F-15GT
Description  3A Fixed Output Voltage LDO Regulator
PDF  15 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9172F-15GT Datasheet(HTML) 7 Page - Richtek Technology Corporation

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RT9172
7
DS9172-14
March 2007
www.richtek.com
PSRR
-55
-50
-45
-40
-35
-30
-25
-20
-15
Frequency (Hz)
VOUT = 2.5V
COUT = 10uF (Electrolytic)
ILOAD = 10mA
ILOAD = 100mA
10
100
1K
10K
100K
1M
Load Regulation Deviation
-0.15
-0.12
-0.09
-0.06
-0.03
0.00
-35
-15
5
25
45
65
85
105
125
Temperature
(°C)
VOUT = 2.5V
CIN = 1uF (Ceramic)
COUT = 10uF (Tantalum)
ILOAD = 10mA
Range of Stable ESR Values
0.01
0.1
1
10
100
00.511.522.5
3
Output Current (A)
CIN = 1uF (MLCC)
COUT = 10uF (MLCC)
Stable Region
Reqion of Instability
Line Transient Response
Time (ms)
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
3.5
4.5
5.5
0
20
40
CIN = 1uF (Ceramic)
VOUT = 2.5V
TA = 25°C
≈
≈
COUT = 10uF (Tantalum)
ILOAD = 100mA
Line Transient Response
Time (ms)
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
3.5
4.5
5.5
0
20
40
CIN = 1uF (Ceramic)
VOUT = 2.5V
TA = 25°C
≈
≈
COUT = 10uF (Electrolytic)
ILOAD = 100mA
EN Pin Shutdown Response
Time (ms)
0
1
2
3
4
5
6
7
8
9
10
0
1
2
0
1
2
VOUT = 1.8V
CIN = 1uF (Ceramic)
COUT = 10uF (Tantalum)
ILOAD = 100mA
TA = 25°C
≈
≈



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