Datasheet > RP500N131A-TR

RP500N131A-TR

更新时间： 2023-08-15 00:00:00

品牌	Logo	应用领域
理光 - RICOH		光电二极管
页数	文件大小	规格书
22页	472K
描述
Switching Regulator, 0.9A, 1440kHz Switching Freq-Max, CMOS, PDSO6, SOT-23, 6 PIN

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RP500N131A-TR 数据手册

RP500X

TYPICAL APPLICATION

V_OUT

RP500

SERIES

PGND

AGND

Load

C_OUT10µF

V_IN

L 4.7µH

C_IN10µF

Parts Recommendation

L: 4.7µH VLF3010AT-4R7MR30 (TDK)

COUT: 10µF Ceramic C2012JB0J106K (TDK)

CIN: 10µF C2012JB0J106K (TDK)

When you use these ICs, consider the following issues:

zꢀ Set the same level as AGND and PGND.

zꢀ Set external components such as an inductor, CIN, COUT as close as possible to the IC, in particular,

minimize the wiring to VIN pin and PGND pin. The wiring between VOUT and load and between L and VOUT

should be separated.

zꢀ Use an external capacitor CIN between VIN and GND, and COUT with a capacity of 10µF or more ceramic

type.

zꢀ Choose an inductor with inductance range from 4.7µH to 10.0µH. The phase compensation has been made

by these values with output capacitors. The recommendation characteristics of the inductor are low DC

resistance, large enough permissible current, and strong against the magnetic saturation. Inductance value

may shift depending on an inductor. If the inductance value at an actual load current is low, Lx peak current

may increase and may overlap the Lx current limit. As a result, over current protection may work.

zꢀ Over current protection circuit may be affected by self-heating and heat radiation environment.

zꢀ Reinforce the VIN, PGND, and VOUT lines sufficiently. Large switching current may flow in these lines. If the

impedance of VIN and PGND lines is too large, the internal voltage level in this IC may shift caused by the

switching current, and the operation might be unstable.

The performance of power source circuits using these ICs extremely depends upon the peripheral circuits.

Pay attention in the selection of the peripheral circuits. In particular, design the peripheral circuits in a way that

the values such as voltage, current, and power of each component, PCB patterns and the IC do not exceed

their respected rated values.( such as the voltage, current, and power)

1...3 4 567 8 9...22

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型号	品牌	描述	获取价格	数据表
RP500N131A-TR-F	RICOH	Switching Regulator, Current-mode, 0.9A, 1440kHz Switching Freq-Max, CMOS, PDSO6, LEAD FRE	获取价格
RP500N132A-TR	RICOH	Switching Regulator, 0.9A, 1440kHz Switching Freq-Max, CMOS, PDSO6, SOT-23, 6 PIN	获取价格
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RP500N134A-TR-FE	RICOH	Switching Regulator, 1440kHz Switching Freq-Max, CMOS, PDSO6, HALOGEN FREE AND ROHS COMPLI	获取价格
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