LP2951_10 Datasheet, PDF (6/8 Pages) Fairchild Semiconductor – Adjustable Micro Power Voltage Regulator

LP2951
Typical Application
ERROR
SHUTDOWN
VIN
8
VIN
5 _{ERROR VOUT} 1
KA_L7_P8₂R₉L₅O₁ OD
3
SD
GND
FB
4
7
VOUT
Co
R1
1μF
VREF
R2
VO = V_REF (1+ R₁/ R₂)+I_FB R₁
CO is required between the output and ground for stability at output voltages of 5V or more. since IFB is controlled to less
than 40nA, the error associated with this term is negligible in most applications.
At lower output voltage, more capacitance is required. without this capacitance the part will oscillate.
6