SP6644 查看數據表（PDF） - Signal Processing Technologies

零件编号

产品描述 (功能)

比赛名单

SP6644

Single/Dual Alkaline Cell, High Efficiency Boost DC-DC Regulator

Signal Processing Technologies 

BLOCK DIAGRAM

VBATT

VOUT

FB

SHDN

+1.25V

VREF

REFREADY

+1.0V (SP6644)

+2.0V (SP6645)

SP6644

SP6645

+1.0V (SP6644)

+2.0V (SP6645)

LOGIC DRV-P

DRV-N

PDISCHARGE

Inductor

Damping

Switch

START

UP

OSC

N

VLPK

NCHARGE

N

I-Discharge

LX

I-Charge

RLIM

BATTLO

RLIM

GND

Figure 27. Internal Block Diagram of the SP6644/6645

Date: 11/30/04

SP6644/6645 High Efficiency Boost Regulator

9

© Copyright 2004 Sipex Corporation

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