AP7331

300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT

LOW DROPOUT LINEAR REGULATOR

AP7331

Document number: DS31914 Rev. 3 - 2

4 of 13

www.diodes.com

January 2011

© Diodes Incorporated

Electrical Characteristics

Symbol

Parameter

Test Conditions

Min

Typ.

Max

Unit

Input Quiescent Current

⎯

55

75

μA

65

85

Input Shutdown Current

⎯

1

μA

Input Leakage Current

⎯

1

μA

Dropout Voltage (Note 4)

300

550

mV

ADJ Reference Voltage (Adjustable version)

0.4

V

ADJ Leakage (Adjustable version)

⎯

1

μA

Output Voltage Accuracy

-2

2

%

ΔV

OUT

/

ΔV

Line Regulation

0.01

0.20

%/V

ΔV

OUT

Load Regulation

-0.6

0.6

%

Start-up Time

80

μs

PSRR

PSRR

65

dB

Short-circuit Current

100

mA

Current Limit

400

600

mA

EN Input Logic Low Voltage

0.4

V

EN Input Logic High Voltage

1.4

V

EN Input Current

-1

1

μA

Thermal Shutdown Threshold

140

°C

Thermal Shutdown Hysteresis

15

°C

Thermal Resistance Junction-to-Ambient

SOT25 (Note 5)

190

DFN2020-6 (Note 6)

167

Notes:

4. Dropout voltage is the voltage difference between the input and the output at which the output voltage drops 2% below its nominal value.

This parameter only applies to output voltages above 1.8V.

5. Test conditions for SOT25: Device mounted on FR-4 substrate PCB, with minimum recommended pad layout, 2oz copper, single sided

6. Test conditions for DFN2020-6: Device mounted on FR-4 substrate PCB, with minimum recommended pad layout, 2oz copper, double sided,

bottom layer is a copper plane.