AP7335 Datasheet, PDF (4/18 Pages) Diodes Incorporated – 300mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator

AP7335
300mA, Low Quiescent Current, Fast Transient
Low Dropout Linear Regulator
Electrical Characteristics
(T_A = 25^oC, V_IN = V_OUT +1V, C_IN = 1μF, C_OUT = 1μF, V_EN = 2V, unless otherwise stated)
Symbol
Parameter
Test Conditions
Min Typ. Max Unit
V_REF ADJ Reference Voltage (Adjustable version) I_OUT= 0mA
0.8
V
I_ADJ ADJ Leakage (Adjustable version)
V_OUT Output Voltage Accuracy
T_A = -40^oC to 85^oC,
I_OUT = 10% of I_OUT-Max
0.1 1 μA
-2
2%
ΔV_OUT
/ΔV_IN/V
Line Regulation
V_IN = (V_OUT +1V) to V_IN-Max,
V_EN = V_IN, I_OUT = 1mA
0.02 0.20 %/V
ΔV_OUT
/V_OUT
Load Regulation
V_IN = (V_OUT +1V) to V_IN-Max,
I_OUT = 1mA to 300mA
-0.6
0.6 %
V_Dropout Dropout Voltage (Note 3)
V_OUT < 2.5V, I_OUT = 300mA
V_OUT ≥ 2.5V, I_OUT = 300mA
170
150
300
200
mV
I_Q Input Quiescent Current
V_EN = V_IN, I_OUT = 0mA
35 80 μA
I_SHDN Input Shutdown Current
V_EN = 0V, I_OUT = 0mA
0.1 1 μA
I_LEAK Input Leakage Current
V_EN = 0V, OUT grounded
0.1 1 μA
t_ST Start-up Time
V_EN = 0V to 2.0V in 1μs,
I_OUT = 300mA
220
μs
PSRR PSRR (Note 4)
V_IN = [V_OUT +1V]V_DC + 0.5V_ppAC,
f = 1kHz, I_OUT = 50mA
65
dB
V_IN = V_IN-Min to V_IN-Max,
I_SHORT Short-circuit Current
V_OUT < 0.2V (fixed) or
140
mA
25% of V_OUT (ADJ version)
I_LIMIT Current limit
V_IN = V_IN-Min to V_IN-Max,
V_OUT/R_OUT = 1.2A
400 600
mA
V_IL EN Input Logic Low Voltage
V_IN = V_IN-Min to V_IN-Max
0.4 V
V_IH EN Input Logic High Voltage
V_IN = V_IN-Min to V_IN-Max
1.4
V
I_EN EN Input Current
V_IN = 0V or V_IN-Max
-1
1 μA
T_SHDN Thermal shutdown threshold
145
°C
T_HYS Thermal shutdown hysteresis
15
°C
θ_JA
Thermal Resistance Junction-to-Ambient
SOT25 (Note 5)
DFN2020-6 (Note 5)
187
251
o_C/W
Notes:
3. Dropout voltage is the voltage difference between the input and the output at which the output voltage drops 2% below its nominal
value.
4. At V_IN < 2.3V, the PSRR performance may be reduced.
5. Test condition for all packages: Device mounted on FR-4 substrate PC board, 1oz copper, with minimum recommended pad
layout.
AP7335
Document number: DS32259 Rev. 1 - 2
4 of 18
www.diodes.com
July 2010
© Diodes Incorporated