Datasheet

ST1L05, ST1L05A, ST1L05B, ST1L05C, ST1L05D Application information
Doc ID 14492 Rev 2 15/24
For the adjustable version, the output voltage can be adjusted from 1.22 V up to the input
voltage, minus the voltage drop across the PMOS (dropout voltage), by connecting a
resistor divider between the ADJ pin and the output, thus allowing remote voltage sensing.
The resistor divider should be selected using the following equation:
V
O
= V
ADJ
(1 + R
1
/ R
2
) with V
ADJ
= 1.22 V (typ.)
It is recommended to use resistors with values in the range of 10 kΩ to 100 kΩ. Lower
values can also be suitable, but will increase current consumption.
Figure 26. Application schematic for the ST1L05B and ST1L05D
V
IN
V
IN
V
OUT
ST1L05B
GND
V
OUT
GND
C
I
C
O
EN
PG
ADJ
R1
R2
OFF ON
ST1L05D
V
IN
V
IN
V
OUT
ST1L05B
GND
V
OUT
GND
C
I
C
O
EN
PG
ADJ
R1
R2
OFF ON
ST1L05D
Figure 27. Application schematic for the ST1L05C
GND
C
O
C
I
V
I
GND
OFF ON EN
V
O
V
O
V
O_SENSE
ST1L05C
V
I
GND
C
O
C
I
V
I
GND
OFF ON EN
V
O
V
O
V
O_SENSE
ST1L05C
V
I