Data Sheet
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
AP2125
Pin Configuration
N Package
(SOT-23-3)
K/KS Package
KC Package
(SC-82)
(SOT-23-5/SC-70-5)
VIN
3
CE
1
2
4
3
VIN
1
2
3
5
4
VOUT
VIN
GND
CE
GND
VOUT
1
2
NC
VOUT
GND
Figure 2. Pin Configuration of AP2125 (Top View)
Pin Description
Pin Number
Pin Name
Function
SOT-23-3 SOT-23-5/ SC-82
SC-70-5
3
1
1
4
VIN
Input voltage
Ground
2
3
4
5
2
1
GND
CE
Active high enable input pin. Logic high=enable, logic low=shutdown
NC
No connection
2
3
VOUT
Regulated output voltage
May. 2010 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
2