Diodes AP1604 Manuel d'utilisateur télécharger pdf (Page 4)

AP1604A

PWM/PFM DUAL MODE STEP-DOWN DC/DC

CONVERTER

AP1604A Rev. 2 4 of 7 FEBRUARY 2009

www.diodes.com © Diodes Incorporated

Typical Performance Characteristics

V

cc vs. Operating Current

V

cc vs. Quiescent Current

0

20

40

60

80

100

120

140

160

180

200

2.5 3 3.5 4 4.5 5 5.5

Vcc

(

V

)

Operating Current (uA)

0

20

40

60

80

100

120

140

160

180

200

2.533.544.555.5

Vcc (V)

Quiescent Current (uA)

V

cc vs. Stand-by Current

V

cc vs. 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)

Stand-by Current (uA)

500

520

540

560

580

600

620

640

660

680

700

2.533.544.555.5

Vcc (V)

Frequency (KHz)

V

cc vs. Current Limit

V

cc vs. R

DS(ON)

0.5

0.6

0.7

0.8

0.9

1

1.1

1.2

1.3

1.4

33.544.555.5

Vcc

(

V

)

Current Limit (A)

Current Limit

Vout=2V

0

100

200

300

400

500

600

2.5 3 3.5 4 4.5 5 5.5

R

DS(ON)

(mΩ)

Vcc (V)

1 2 3 4 5 6 7

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