RT8251GSP Ver la hoja de datos (PDF) - Richtek Technology

Número de pieza

componentes Descripción

Fabricante

RT8251GSP

5A, 24V, 570kHz Step-Down Converter

Richtek Technology 

RT8251

GND

Input capacitor must

be placed as close

to the IC as possible.

VIN SW GND

CBOOT

CIN

BOOT

VIN

2

D

SW

3

CS RS GND

4

8

7

GND

6

9

5

The feedback components

must be connected as close

to the device as possible.

CSS

CC

SS

EN

CP RC

COMP

R1

FB

COUT

L

R2 VOUT

VOUT

SW should be connected to inductor by

wide and short trace. Keep sensitive

components away from this trace.

GND

Figure 10. PCB Layout Guide for PSOP-8 Package

Table 3. Suggested Capacitors for CIN and COUT

Location Component Supplier

Part No.

CI N

MURATA

GRM31ER61E226K

CI N

TDK

C4535X5R1E226M

CI N

TAIYO YUDEN

TMK325BJ226MM

COUT

MURATA

GRM32ER61C476M

COUT

MURATA

GRM31C R60J 476M

COUT

TDK

C3216X5R0J476M

COUT

TAIYO YUDEN

LMK316BJ476MM

Capacitance (μF)

22

22

22

47

47

47

47

Table 4. Suggested Diode

Component Supplier

Part No.

DIODES

B54 0C

ON

MBR S54 0T3

VRRM (V)

40

40

IOUT (A)

5

5

P acka ge

SMC

SMC

Case Size

1210

1812

1210

1210

1206

1206

1206

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DS8251-04 February 2013

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