AP1513

PWM CONTROL 2A STEP-DOWN CONVERTER

AP1513 Rev. 1

3 of 8

JANUARY 2007

www.diodes.com

Absolute Maximum Ratings

Symbol

Parameter

Rating

Unit

V

Feedback Pin Voltage

V

EN Pin Voltage

V

Switch Pin Voltage

V

Power Dissipation

Internally limited

mW

Junction Temperature Range

-40 to +125

Storage Temperature Range

-40 to +150

Caution:

The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be

exceeded under any conditions.

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

Input Voltage

--

3.6

-

18

V

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

Evaluate oscillation at SW pin

2.0

-

-

EN Pin Input Voltage

Evaluate oscillation stop at SW pin

-

-

0.8

V

--

-

20

-

µA

EN Pin Input Leakage

Current

--

-

-10

-

µA

OCSET Pin Bias Current

--

75

90

105

µA

Soft-Start Time

--

0.3

2

5

ms

-

110

150

Internal MOSFET Rdson

-

70

100

mΩ

EFFI

Efficiency

-

92

-

%

Thermal Resistance

Junction-to-Ambient

-

65

-