LV5256GP 查看數據表（PDF） - SANYO -> Panasonic

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LV5256GP

Operating Mode Switching Type Step-Up/Down Converter

SANYO -> Panasonic 

LV5256GP

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Pin No.

Pin Name

Description

18

RT

Oscillation frequency setting pin. Connect a resistor

between this pin and GND. A 100kΩ resistor causes the

oscillator to oscillate at 1MHz (typ.).

Equivalent Circuit

VDD

500Ω

18

10kΩ

19

VDD

20

LGND

Logic system power supply. Apply 3.0V±0.1V to this pin

from an external source.

Logic system ground pin. All voltages are measured with

respect to this voltage level.

Startup Sequence

VDD

ONOFF

VIN

REG_O

VOUT-5

SS

ONOFF:H REG_O startup

UVLO release

VOUT-5 startup

VOUT-5 normal judgment

SS start

SW

Power supply operation beginning

* Be sure to set the ONOFF to 0V when starts or stops VDD. And apply voltage to VIN after VDD started up.

No.A1277-8/9

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