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1507-12

150KHz, 3A PWM BUCK DC/DC CONVERTER

Diodes Incorporated. 

AP1507

150KHz, 3A PWM BUCK DC/DC CONVERTER

Electrical Characteristics (All Output Voltage Versions)

Unless otherwise specified, VIN = 12V for 3.3V, 5V, adjustable version and VIN = 18V for the 12V version. ILOAD = 0.5A

Specifications with boldface type are for full operating temperature range, the other type are for TJ = 25°C.

Symbol

Parameter

Conditions

Min

Typ

Max

IFB Feedback Bias Current

VFB = 1.3V

( Adjustable Version Only )

-50

-10

-100

FOSC Oscillator Frequency

127

150

173

110

173

Oscillator Frequency of Short

When current limit Occurred and

FSCP Circuit Protect

VFB < 0.5V, TA = 25oC

10

30

50

VSAT Saturation Voltage

IOUT = 3A

No Outside Circuit

VFB = 0V Force Driver On

1.6

1.4

1.7

Max. Duty Cycle (ON)

VFB = 0V Force Driver On

100

DC

Min. Duty Cycle (OFF)

VFB = 12V Force Driver Off

0

ICL Current Limit

Peak Current

No Outside Circuit

VFB = 0V Force Driver On

5.5

3.6

4.5

6.5

ILEAK

Output = 0V

Output = -1V

Output

leakage

current

No Outside Circuit

VFB =12V Force Driver Off

VIN = 22V

-200

-5

IQ

Quiescent Current

VFB = 12V Force Driver Off

5

10

ISTBY

Standby Quiescent

Current

ON/OFF Pin = 5V

VIN = 22V

150

70

200

VIL ON/OFF Pin Logic Input Threshold Low (Regulator ON)

VIH Voltage

High (Regulator OFF)

-

0.6

1.3

2.0

-

IH

ON/OFF Pin Logic Input Current VLOGIC = 2.5V (OFF)

-0.01

IL

ON/OFF Pin Input Current

VLOGIC = 0.5V (ON)

-0.1

-1

θJA Thermal Resistance

TO252-5L

Junction to Case

10

Thermal Resistance

Junction to

θJC with copper area of approximately TO252-5L

Ambient

50

2cm ×2cm

Unit

nA

KHz

KHz

V

%

A

µA

mA

mA

µA

V

µA

oC/W

oC/W

AP1507

Document number: DS31067 Rev. 3 - 2

5 of 12

www.diodes.com

May 2012

© Diodes Incorporated

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