Data Sheet
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
Functional Block Diagram (Continued)
AP2129
SHUTDOWN
UVLO &
Shutdown
VIN
Logic
Thermal
Shutdown
Foldback
Current Limit
3MΩ
GND
VREF
VOUT
ADJ
Figure 3. Functional Block Diagram of AP2129
Jul. 2008 Rev. 1.0
BCD Semiconductor Manufacturing Limited
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