R1223N502G-TR 参数 Datasheet PDF下载

n

BLOCK DIAGRAM

V

IN

OSC

V

OUT

Vref

EXT

PWM/VFM

CONTROL

Protection

Soft Start

Chip Enable

CE

GND

n

SELECTION GUIDE

In the R1223N Series, the output voltage, the oscillator frequency, the optional function, and the taping type for

the ICs can be selected at the user’s request.

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

R1223NXXXX-XX

- -- -

a

b c

Code

a

b

c

d

Contents

d

Setting Output Voltage(V

OUT

):

Stepwise setting with a step of 0.1V in the range of 1.5V to 5.0V is possible.

Designation of Oscillator Frequency

2 : fixed

Designation of Optional Function

A : 300kHz, with a PWM/VFM alternative circuit, Latch-type protection

B : 500 kHz, with a PWM/VFM alternative circuit, Latch-type protection

C : 300kHz, without a PWM/VFM alternative circuit, Latch-type protection

D : 500kHz, without a PWM/VFM alternative circuit, Latch-type protection

E : 300kHz, with a PWM/VFM alternative circuit, Reset-type protection

F : 500 kHz, with a PWM/VFM alternative circuit, Reset-type protection

G : 300kHz, without a PWM/VFM alternative circuit, Reset-type protection

H : 500kHz, without a PWM/VFM alternative circuit, Reset-type protection

Designation of Taping Type; Ex. :TR,TL(refer to Taping Specification)

”TR” is prescribed as a standard.

12345

Rev. 1.11

-2-