R1234D311A Просмотр технического описания (PDF) - RICOH Co.,Ltd.

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R1234D311A

PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier

RICOH Co.,Ltd. 

R1234D

SELECTION GUIDE

In the R1234D Series, the output voltage, the oscillator frequency, and the taping type for the ICs can be

selected at the user's request.

The selection can be made with designating the part number as shown below;

R1234Dxx1x-xx-x ←Part Number

↑ ↑ ↑↑ ↑ ↑

a b cd e f

Code

a

b

c

d

e

f

Contents

Designation of Package Type;

D: SON-8

Setting Output Voltage (VOUT):

Stepwise setting with a step of 0.1V in the range of 1.2V to 3.3V is possible for A/B

version."00" is for Output Voltage Adjustable C/D version (0.8V to )

1: fixed

Designation of Optional Function

A: 500kHz, Fixed Output Voltage

B: 800kHz, Fixed Output Voltage

C: 500kHz, Adjustable Output Voltage

D: 800kHz, Adjustable Output Voltage

Designation of Taping Type;

(Refer to Taping Specification)"TR" is prescribed as a standard.

Designation of Composition of pin plating

-F: Lead free plating

3

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