Diodes AP131 Manuel d'utilisateur télécharger pdf (Page 4)

AP131

300mA LOW DROPOUT LINEAR REGULATOR WITH

SHUTDOWN

AP131 Rev. 7 4 of 7 FEBRUARY 2009

www.diodes.com © Diodes Incorporated

Electrical Characteristics

= 25ºC, C

= 1µF, C

OUT

= 10µF, unless otherwise specified.

Symbol Parameter Conditions Min Typ. Max Unit

DROP

Dropout Voltage (Note 3) I

= 300mA - 400 500 mV

LIMIT

Current Limit (Note 4) V

= 5V, V

OUT

= 0V 350 450 - mA

short

Short Circuit Current V

OUT

< 1.05V - 150 300 mA

ΔV

LINE

Line Regulation

OUT

=1mA, V

OUT

+1V )

to 5.5V

- 0.1 0.3 %/V

ΔV

LOAD

Load Regulation (Note 5) I

= 1~300mA, V

= 5V - 30 35 mV

ΔV

OUT

Output Voltage Accuracy I

= 1mA, V

= 5V -2 - +2 %

Output Voltage Temperature

Coefficient (Note 6)

- 50 150

PPM/

ºC

PSRR Ripple Rejection

F = 100Hz,

= 1μF, C

= 10uF,

= 100mA

- 60 - dB

Standby Current I

= 0mA, V

= 5V, EN = 0V - - 5 μA

Quiescent Current I

= 0mA, V

= 5V, EN = 5V - 50 100 μA

Enable Pin Current - - < 0.1 μA

ENON

Enable Pin Voltage

Output ON 1.5 - V

ENOFF

Output OFF 0 - 0.8 V

DELAY

Enable Delay Time

= 0.1μF, C

OUT

= 1μF,

OUT

= 30mA

- 8 - μS

Thermal Resistance

Junction-to-Ambient

SOT25 (Note 7) 163

C/W

Thermal Resistance

Junction-to-Case

SOT25 (Note 7) 53

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

<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.

1 2 3 4 5 6 7

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Diodes AP131 Manuel d'utilisateur Page 4

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