4A Ultra Low Dropout Positive Adjustable or Fixed-mode Regulator

AP1184

Anachip Corp.

www.anachip.com.tw

Rev.1.1 Sep 7, 2004

7/11

Performance Characteristic

Output Current (A)

Vcontrol Dropout Voltage vs Output Current

800

900

1000

1100

1200

Vpower = 2.05 V

0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

Output Current (A)

Vpower Dropout Voltage vs Output Current

0

0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

50

100

150

200

250

300

350

400

450

500

550

600

650

700

750

800

Vcontrol = 2.75 V

Reference Voltage vs Junction Temperature

1. 247

1. 248

1. 249

1. 250

1. 251

1. 252

1. 253

0

20

40

60

80

100

120

Output Current (A)

Load Regulation vs Output Current

0

0. 02

0. 04

0. 06

0. 08

0. 10

0. 12

0. 14

0. 15

0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0