RT9161A-18GX Richtek USA Inc, RT9161A-18GX Datasheet - Page 5

• Manufacturer Part Number: RT9161A-18GX
• Description: IC REG LDO 1.8V 500MA SOT89
• Manufacturer: Richtek USA Inc

Specifications of RT9161A-18GX

• Regulator Topology: Positive Fixed
• Voltage - Output: 1.8V
• Voltage - Input: Up to 12V
• Voltage - Dropout (typical): 0.75V @ 500mA
• Number Of Regulators: 1
• Current - Output: 500mA (Max)
• Current - Limit (min): 500mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TO-243AA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DS9161/A-34 April 2010
-10
-20
-30
-40
-50
-60
100
100
0
-20
-20
-50
-50
60
40
20
60
40
20
50
50
10
0
0
1
1
2 >
1 >
2 >
1 >
≈
≈
C
C
T
V
V
C
C
C
C
T
T
A
IN
OUT
IN
OUT
IN
OUT
A
IN
OUT
A
= 25°C
= 1uF
= 5V
= 25°C
= 25°C
= 1μF
= 1μF
= 10uF Tantalum
= 3.3V
Load Transient Response
Load Transient Response
= 10μF
= 10μF
100
T
T
T
T
T
T
Time (100μs/Div)
Time (100μs/Div)
Time (100μS/Div)
1000
Time (100μS/Div)
Frequency (Hz)
1K
PSRR
10000
10K
V
V
V
V
100000
100K
IN
OUT
IN
OUT
= 5V
= 5V
100mA
= 2.5V
10mA
= 3.3V
1000000
1M
≈
≈
-10
-20
-30
-40
-50
-60
-100
-100
0
150
100
200
100
150
100
-50
200
100
-50
50
10
50
10
10
0
0
2 >
1 >
≈
2 >
1 >
≈
C
C
T
V
V
C
C
C
C
A
T
IN
T
OUT
IN
OUT
= 25°C
IN
OUT
A
IN
OUT
A
= 1uF
= 5V
= 25°C
= 25°C
= 1μF
= 1μF
= 10uF Tantalum
= 2.5V
100
Load Transient Response
= 10μF
Load Transient Response
= 10μF
T
T
T
T
T
T
Time (100μs/Div)
Time (100μs/Div)
1000
Frequency (Hz)
Time (100μS/Div)
Time (100μS/Div)
1K
PSRR
RT9161/A
10000
10K
www.richtek.com
V
V
V
V
100000
IN
OUT
100K
IN
OUT
= 5V
= 5V
10mA
= 3.3V
= 2.5V
100mA
1000000
1M
5
≈
≈