AP1604

PWM/PFM Dual Mode Step-down DC/DC Converter

Anachip Corp.

www.anachip.com.tw

Rev.1.1 Jun. 27, 2005

4/7

Typical Performance Characteristics (Continued)

Vcc v.s. Stand-by Current

Vcc v.s. Frequency

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

5.5

6

2.5

3

3.5

4

4.5

5

5.5

Vcc (V)

500

520

540

560

580

600

620

640

660

680

700

2.53

3.54

4.55

5.5

Vcc (V)

Vcc v.s. Current Limit

0.5

0.6

0.7

0.8

0.9

1

1.1

1.2

1.3

1.4

3

3.5

4

4.5

5

5.5

Vcc (V)

Current Limit

Vout=2V

0

100

200

300

400

500

600

2.5

3

3.5

4

4.5

5

5.5

Vcc (V)

Line Regulation

Load Regulation

-0.3

-0.2

-0.1

0.0

0.1

0.2

0.3

2.533.5

44.555.5

Vcc (V)

-3

-2

-1

0

1

2

3

0

100 200 300 400 500 600 700 800

Load (mA)