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Ap1635, Typical performance characteristics, Pwm/pfm dual mode step-down dc/dc converter – Diodes AP1635 User Manual

Page 5

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AP1635

PWM/PFM DUAL MODE STEP-DOWN DC/DC

CONVERTER

AP1635 Rev. 4

5 of 8

FEBRUARY 2009

www.diodes.com

©

Diodes Incorporated

Typical Performance Characteristics

Vcc vs. Operating Current

Vcc vs. Quiescent Current

Icc (uA)

0

20

40

60

80

100

120

140

160

180

200

2.5

3

3.5

4

4.5

5

Vcc (V)

O

perat

ing Current (uA)

0

20

40

60

80

100

120

140

160

180

200

2.5

3

3.5

4

4.5

5

Vcc (V)

Q

u

ies

cent Current

(uA)

Vcc vs. Stand-by Current

Vcc vs. Frequency

4

4.5

5

5.5

6

6.5

7

7.5

8

2.5

3

3.5

4

4.5

5

Vcc (V)

Stand-by C

u

rrent

(uA)

600

620

640

660

680

700

720

740

760

780

800

2.5

3

3.5

4

4.5

5

Vcc (V)

F

requenc

y (KH

z

)

Vcc vs. Current Limit

Vcc vs. R

DS(ON)

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

Vc c

C

u

rr

e

n

t L

im

it (

A

)

Current Limit

Vout=2V

0

100

200

300

400

500

600

2.5

3

3.5

4

4 .5

5

R

DS

(O

N

)

(m

)

Vcc (V)