AP2004

PWM Buck Controller

Anachip Corp.

www.anachip.com.tw

Rev. 0.4 Apr 6, 2004

6/8

Typical Characteristics (Continued)

OSCILLATOR FREQUENCY

v.s.

TIMING CAPACITANCE

0

50

100

150

200

250

300

350

100

600 1100 1600 2100 2600 3100 3600 4100 4600 5100 5600 6100 6600

CT-Timing Capacitor (pF)

SCP TIME-OUT PERIOD

v.s.

SCP CAPACITANCE

0

5

10

15

20

25

30

35

45 90 135 180 225 270 315 360 405 450 495

Cscp - SCP Capacitance (nF)

SOFT-START TIME (Ts)

v.s.

SOFT-START CAPACITOR (Css)

0

5

10

15

20

25

30

25

50

75

100

125

150

175

200

Css (nF)

Marking Information

(Top View)

PDIP/SOP

AC

AP2004

YY WW X X

Logo

Part No.

ID code

Year: "01" =2001

"02" =2002

Xth week: 01~52

5

8

4

1

Blank: normal

L: Lead Free Package