AP1501

150Khz, 3A PWM Buck DC/DC Converter

Anachip Corp.

www.anachip.com.tw

Rev.A7 Feb. 10, 2004

3/11

Absolute Maximum Ratings

Symbol

Parameter

Rating

Unit

Supply Voltage

+45

V

ON/OFF Pin input voltage

-0.3 to +25

V

Feedback Pin voltage

-0.3 to +25

V

Output voltage to Ground

-1

V

Power dissipation

Internally limited

W

Storage temperature

-65 to +150

Operating temperature

-40 to +125

Operating voltage

+4.5 to +40

V

Electrical Characteristics (All Output Voltage Versions)

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

60

Feedback bias current

(Adjustable version only)

40

100

nA

127

150

173

oscillator frequency

110

173

Khz

1.4

saturation voltage

no outside circuit

1.3

1.5

V

Max. Duty Cycle(ON)

100

DC

Min. Duty cycle(OFF)

0

%

5.5

current limit

peak current

no outside circuit

3.6

4.0

6.5

A

Output = 0

no outside circuit

200

uA

Output = -1

Output

leakage

current

2

60

mA

Quiescent Current

5

10

mA

250

Standby Quiescent

Current

ON/OFF pin=5V

150

300

uA

Low (regulator ON)

-

0.6

ON/OFF pin logic input

threshold voltage

High (regulator OFF)

2.0

1.3

-

V

ON/OFF pin logic

input current

15

25

0.02

5

uA

TO220-5L

2.5

Thermal Resistance

TO263-5L

Junction to

case

3.5

TO220-5L

28

Thermal Resistance

With copper area of

approximately 3 in

2

TO263-5L

Junction to

ambient

23