AP1118

1A Positive Low Dropout Fixed-Mode Regulator With EN Function

Anachip Corp.

www.anachip.com.tw

Rev.1.1 Feb. 15, 2005

5/10

Typical Performance Characteristics

Percent Change in Output Voltage vs Temperature

-50

-25

0

25

50

75

100

125

150

- 2

-1.5

- 1

-0.5

0

0. 5

1

1.5

2

Input Voltage (V)

Line Regulation

0

0.2

0.4

0.6

0.8

1

24

6

8

10

12

TIME (us)

Line Transient Response

-40

-20

0

20

40

5.5

6.5

7.5

Cin=1uF

Cout=10uF Tantalum

0

20

40

60

80

100 120 140 160 180 200

TIME (us)

Load Transient Response

010

20 30

40

50

60

70

80

90 100

-1

0

1

2

-20

-10

0

10

20

30

C in = 1uF

C out = 10 uF Tantalum

Preload = 100mA

Output Current (mA)

Dropout Voltage vs Output Current

0

0. 2

0. 4

0. 6

0. 8

1. 0

1. 2

1. 4

1. 6

1. 8

2. 0

0

250

500

750

1000

Load Regulation vs Temperature

-25

0

25

50

75

100

125

- 1

-0.80

-0.40

-0.20

0

0.20

I load=800mA