Ap1120, Typical performance characteristics, Dual 1a low dropout positive regulator – Diodes AP1120 User Manual

Page 5

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AP1120

DUAL 1A LOW DROPOUT POSITIVE REGULATOR

AP1120 Rev. 2

5 of 7

FEBRUARY 2009

www.diodes.com

©

Diodes Incorporated

Typical Performance Characteristics


Temperature (

o

C)

Percent Change in Output Voltage vs Temperature

Out

put Volt

age

C

hange (%)

-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

Out

put

Volt

age D

e

vi

at

ion (%

)

0

0.2

0.4

0.6

0.8

1

2

4

6

8

10

12

TIME (us)

Line Transient Response

O

utput

Vol

tage Dev

iat

io

n (m

V)

Input

V

olt

age

(V)

-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

Load Current

(A)

Out

p

ut

Vol

tage Dev

iat

io

n (m

V

)

0

10

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

Dropout Voltage vs Output Current

Temperature (

o

C)

Load Regulation vs Temperature

O

utput

V

oltage D

ev

iation (%)

-25

0

25

50

75

100

125

- 1

-0.80

-0.40

-0.20

0

0.20

I load=800mA

Output Current (mA)

D

ropout Voltage

(V

)

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

Tj = 125

o

C

Tj = 25

o

C

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