AP1513

PWM CONTROL 2A STEP-DOWN CONVERTER

AP1513 Rev. 4

4 of 9

JULY 2009

DS31053

www.diodes.com

Electrical Characteristics

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

Feedback Voltage

0.784

0.8

0.816

V

Feedback Bias Current

-

0.1

0.5

µA

Switch Current

--

2.5

-

-

A

Current Consumption

During Power Off

-

10

-

µA

Line Regulation

-

1

2

%

Load Regulation

-

0.2

0.5

%

Oscillation Frequency

Measure waveform at SW pin

240

300

400

KHz

Frequency of Current Limit

or Short Circuit Protect

Measure waveform at SW pin

10

-

-

KHz

EN Pin Input Voltage

Evaluate oscillation at SW pin

2.0

-

-

V

Evaluate oscillation stop at SW pin

-

-

0.8

EN Pin Input Leakage

Current

--

-

20

-

µA

--

-

-10

-

µA

OCSET Pin Bias Current

--

75

90

105

µA

Soft-Start Time

--

0.3

2

5

ms

Internal MOSFET Rdson

-

110

150

mΩ

-

70

100

EFFI

Efficiency

-

92

-

%

Thermal Resistance

Junction-to-Ambient

SOP-8L (Note 3)

-

134

-

Thermal Resistance

Junction-to-Case

SOP-8L (Note 3)

-

22

-

Notes:

3. Test conditions: Device mounted on FR-4 PCB, 2"*2", 2oz copper minimum recommended pad layout, single-sided, PC boards.