150kHz 3A BUCK DC-DC CONVERTER

AP3003

Data Sheet

7

Feb. 2007 Rev. 1. 1

BCD Semiconductor Manufacturing Limited

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Feedback Bias Current

Adjustable Version Only,

10

50

100

nA

Oscillator Frequency

f

(Note 3)

127

110

150

173

173

kHz

Saturation Voltage

1.2

1.5

1.6

V

Maximum Duty Cycle

100

%

Minimum Duty Cycle

0

%

Current Limit

Peak Current , No output

3.6

3.4

4.5

6.9

7.5

A

Output Leakage Current

Output=0V, No output devices,

50

µA

Output=-1V, No output devices,

2

30

mA

Quiescent Current

5

10

mA

Standby Quiescent Current

80

200

250

µA

ON/OFF Pin Logic Input

Threshold Voltage

Regulator ON

0.6

V

Regulator OFF

2.0

ON/OFF Pin Input Current

5

15

µA

0.02

5

µA

For All Output Voltage Versions

Range.

Electrical Characteristics (Continued)

Note 3: The switching frequency is reduced when the second stage current limit is activated.

Note 4: The specifications with boldface are GBD (Guaranteed By Design ).