AP1501

Document number: DS31014 Rev. 14 - 2

5 of 13

www.diodes.com

March 2021

© Diodes Incorporated

AP1501

Electrical Characteristics (@ TA = +25°C, unless otherwise specified.)

Unless otherwise specified, VIN = 12V for 3.3V, 5V, adjustable version and VIN = 24V for the 12V version. ILOAD = 0.5A

Specifications with

boldface type are for full operating temperature range, the other type are for TJ = +25ºC.

Symbol

Parameter

Conditions

Min

Typ.

Max

Unit

IFB

Feedback Bias Current

VFB = 1.3V

(Adjustable Version Only) (Note 4)

—

40

60

nA

100

FOSC

Oscillator Frequency

—

127

150

173

kHz

110

—

173

VSAT

Saturation Voltage

IOUT = 3A

No Outside Circuit

VFB = 0V Force Driver On

—

1.3

1.4

V

1.5

DC

Max. Duty Cycle (ON)

VFB = 0V Force Driver On

—

100

—

%

Min. Duty Cycle (OFF)

VFB = 12V Force Driver Off

—

0

—

ICL

Current Limit

Peak Current

No Outside Circuit

VFB = 0V Force Driver On

3.6

4.0

5.5

A

6.5

IL

Output = 0

Output

Leakage

Current

—

—

200

200

µ

A

Output = -1

—

2

60

60

mA

IQ

Quiescent Current

VFB = 12V Force Driver Off

—

5

10

mA

ISTBY

Standby Quiescent

Current

ON/OFF Pin = 5V

VIN = 40V

—

150

250

µ

A

350

VIL

ON/OFF Pin Logic Input

Threshold Voltage

Low (Regulator ON)

—

1.3

0.6

V

VIH

High (Regulator OFF)

2.0

—

IH

ON/OFF Pin Logic

Input Current

VLOGIC = 2.5V (OFF)

—

15

25

µ

A

IL

ON/OFF Pin Input Current

VLOGIC = 0.5V (ON)

—

0.02

5

θJA

Thermal Resistance

Junction to Ambient

TO263-5 (Note 5)

—

37

—

°C/W

TO220-5 (Note 5)

—

31

—

θJC

Thermal Resistance Junction

to Case

TO263-5 (Note 5)

—

6

—

°C/W

TO220-5 (Note 5)

—

5

—

Notes:

4. Feedback pin removed from output and connected to 0V to force the output transistor switch ON. Feedback pin removed from output and connected to

12V for the 3.3V, 5V, and the ADJ. version, and 15V for the 12V version, to force the output transistor switch OFF.

5. Test condition: Device mounted with copper area of approximately 3 in2,1oz, no air flow.