R1211D104A Просмотр технического описания (PDF) - RICOH Co.,Ltd.

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R1211D104A

STEP-UP DC/DC CONTROLLER

RICOH Co.,Ltd. 

R1211x

BLOCK DIAGRAMS

Version A/C

VFB

AMPOUT

OSC

DTC

+

-

-

-

Vref +

-

UVLO

+

-

Latch

EXT VFB

VIN

GND

Version B/D

OSC

DTC

+

-

-

-

Vref +

-

DELAY

CE

Chip

Enable

UVLO

+

-

Latch

EXT

VIN

GND

DELAY

SELECTION GUIDE

In the R1211x Series, the oscillator frequency, the optional function, and the package 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;

R1211x002x-TR ←Part Number

↑↑

ab

Code

a

b

Contents

Designation of Package Type:

D: SON-6

N: SOT23-6W

Designation of Optional Function

A : 700kHz, with AMPOUT pin (External Phase Compensation Type)

B : 700kHz, with CE pin (Internal Phase Compensation Type, with Stand-by)

C : 300kHz, with AMPOUT pin (External Phase Compensation Type)

D : 300kHz, with CE pin (Internal Phase Compensation Type, with Stand-by)

2

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