AP2129_09 Datasheet, PDF (2/15 Pages) BCD Semiconductor Manufacturing Limited – 300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR

Data Sheet
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
Pin Configuration
AP2129
K Package
(SOT-23-5)
Shutdown ₁
GND 2
V_{IN 3}
5 ^ADJ/NC
4 ^VOUT
Figure 2. Pin Configuration of AP2129 (Top View)
Functional Block Diagram
SHUTDOWN
UVLO &
Shutdown
Logic
Thermal
Shutdown
3MΩ
GND
V_REF
Foldback
Current Limit
VIN
VOUT
NC
Oct. 2009 Rev. 1.1
BCD Semiconductor Manufacturing Limited
2