AP131
300mA LOW DROPOUT LINEAR REGULATOR WITH
SHUTDOWN
AP131 Rev. 7 4 of 7 FEBRUARY 2009
www.diodes.com © Diodes Incorporated
Electrical Characteristics
T
A
= 25ºC, C
IN
= 1µF, C
OUT
= 10µF, unless otherwise specified.
Symbol Parameter Conditions Min Typ. Max Unit
V
DROP
Dropout Voltage (Note 3) I
L
= 300mA - 400 500 mV
I
LIMIT
Current Limit (Note 4) V
IN
= 5V, V
OUT
= 0V 350 450 - mA
I
short
Short Circuit Current V
OUT
< 1.05V - 150 300 mA
ΔV
LINE
Line Regulation
I
OUT
=1mA, V
IN
=(
V
OUT
+1V )
to 5.5V
- 0.1 0.3 %/V
ΔV
LOAD
Load Regulation (Note 5) I
L
= 1~300mA, V
IN
= 5V - 30 35 mV
ΔV
OUT
Output Voltage Accuracy I
L
= 1mA, V
IN
= 5V -2 - +2 %
Output Voltage Temperature
Coefficient (Note 6)
- 50 150
PPM/
ºC
PSRR Ripple Rejection
F = 100Hz,
C
IN
= 1μF, C
O
= 10uF,
I
L
= 100mA
- 60 - dB
I
SB
Standby Current I
L
= 0mA, V
IN
= 5V, EN = 0V - - 5 μA
I
Q
Quiescent Current I
L
= 0mA, V
IN
= 5V, EN = 5V - 50 100 μA
I
EN
Enable Pin Current - - < 0.1 μA
V
ENON
Enable Pin Voltage
Output ON 1.5 - V
IN
V
V
ENOFF
Output OFF 0 - 0.8 V
T
DELAY
Enable Delay Time
C
BP
= 0.1μF, C
OUT
= 1μF,
I
OUT
= 30mA
- 8 - μS
θ
JA
Thermal Resistance
Junction-to-Ambient
SOT25 (Note 7) 163
O
C/W
θ
JC
Thermal Resistance
Junction-to-Case
SOT25 (Note 7) 53
O
C/W
Notes: 3. Dropout voltage is defined as the input to output differential voltage. Dropout is measured at constant junction temperature by using pulsed ON
time, and the criterion is V
OUT
inside target value ±2%. This test is skipped at the condition of V
IN
<3V.
4. Current limit is measured at constant junction temperature by using pulsed testing with a low ON time.
5. Regulation is measured at constant junction temperature by using pulsed testing with a low ON time.
6. Guaranteed by design.
7. Test conditions for SOT25: Device mounted on FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout.
