ADP3330ARTZ-5-RL7 Datasheet, PDF (10/12 Pages) Analog Devices – High Accuracy Ultralow IQ, 200 mA, SOT-23, anyCAP Low Dropout Regulator

ADP3330
APPLICATION CIRCUITS
Crossover Switch
The circuit in Figure 24 shows how two ADP3330s can be used to
form a mixed supply voltage system. The output switches between
two different levels selected by an external digital input. Output
voltages can be any combination of voltages from the Ordering
Guide of the data sheet.
V_IN = 3.85V TO 12V
OUTPUT SELECT
3V
0V
IN
OUT
ADP3330-3.6
SD
GND
V_OUT = 3.6V/2.5V
C1+
IN
OUT
1.0␮F
ADP3330-2.5
LOGIC SUPPLY
SD _GND
+ _C2
0.47␮F
Higher Output Current
The ADP3330 can source up to 200 mA at room temperature
without any heatsink or pass transistor. If higher current is
needed, an appropriate pass transistor can be used, as in Figure
25, to increase the output current to 1 A.
V_IN = 4.5V TO 8V
C1
100␮F
MJE253*
R1
50⍀
V_OUT = 3V@1A
IN
OUT
ADP3330-3
SD
ERR
GND
+ _C2
100␮F
*AAVID531002 HEAT SINK IS USED
Figure 25.␣ High Output Current Linear Regulator
Figure 24.␣ Crossover Switch
–10–
REV. A