BP5222X Ver la hoja de datos (PDF) - ROHM Semiconductor

Número de pieza

componentes Descripción

Lista de partido

BP5222X

DC / DC converter

ROHM Semiconductor 

BP5220 / BP5221 / BP5222 /

BP5220X / BP5221X / BP5222X

BP5222 / BP5222X (Unless otherwise noted ; VIN=20V, IO=0.25A, SW=1, Ta=25°C)

Parameter

Symbol Min. Typ. Max. Unit

Conditions

Input voltage

VIN

15

−

38

V

Output voltage

VO

11.2

12

12.8

V

Output current

IO

−

−

0.5

A

∗1

Line regulation

∆VO1

−

22

80

mV VIN=15V~38V

Load regulation

∆VO2

−

45

80

mV IO=0.05A~0.5A

Output ripple voltage

νr

−

35

70

mVPP

∗2

Power conversion efficiency

η

75

90

−

%

IO=0.5A

Switching frequency

fSW

−

190

−

kHz

∗2

CTL pin ON resistance

RON

−

−

4.7

kΩ VO > 11.2V

CTL pin OFF resistance

ROFF

200

−

−

∗1 Derating required according to the input voltage and ambient temperature.

∗2 Pulse noise not included.

kΩ VO < 0.1V, SW=2 select

Measurement circuit

A Input

V

BP5220 / BP5221 / BP5222

BP5220X / BP5221X / BP5222X

9

7654321

SW

1

2

+

+

A Outrput

Vf

f ; Frequency counter

100µF/50V, 470µF/50V ; PL series / NICHIKON(Low-impedance type)

Fig.1

T

Switching frequency=1/T

Output ripple voltage

Note that output ripple voltage depends on the type and characteristics of the output capacitor.

3/8

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