US1206/1207/1208/1209
TYPICAL APPLICATION
Adj
Vout
5
4
3
2
1
Vout
R1
US1209
Gnd
C2
R2
Vin
1209app1-1.1
Enable
S.D. Enable
Vo= 1.24 X (1 + R1/R2)
Vin
Pin numbers in this
schematic apply only
to TO263(M) package.
C1
Figure 2- Typical application of US1209 in 3.3V to 2.5V regulator
Ref Desig
Description
Capacitor
Capacitor
Resistor
Resistor
Resistor
Qty Part #
Manuf
AVX
AVX
C1
C2
R1
R2
R3
1
1
1
1
1
10uF, Tantalum
10uF, Tantalum
127W , 1%
124W , 1%
10kW , 5%
Rev. 1.1
6/26/00
2-7