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SP6691 Datasheet

  • SP6691

  • Micro Power Boost Regulator Series White LED Driver

  • 251.18KB

  • 15頁

  • SIPEX

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廬
SP6691
Micro Power Boost Regulator
Series White LED Driver
FEATURES
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Drives up to 6 LED's @ 25mA
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Drives up to 8 LED's @ 20mA
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High Output Voltage: Up to 34V
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Optimized for Single Supply,
2.7V - 4.2V Applications
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Operates Down to 1V
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High Efficiency: Greater Than 75%
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Low Quiescent Current: 20碌A
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Ultra Low Shutdown Current: 10nA
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Single Battery Cell Operation
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Programmable Output Voltage
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1鈩?switch (350mV at 350mA)
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Available in 8 Pin DFN, 5 Pin TSOT or
5 Pin SOT23
NC
FB
NC
SW
1
2
3
4
8
GND
SP6691
8 Pin DFN
7
V
IN
6
V
EN
5
NC
Now Available in Lead Free Packaging
APPLICATIONS
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White LED Driver
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High Voltage Bias
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Digital Cameras
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Cell Phone
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Battery Backup
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Handheld Computers
DESCRIPTION
The SP6691 is a micro power boost regulator that is specifically designed for powering series
configuration white LED. The part utilizes fixed off time architecture and consumes only 10nA
quiescent current in shutdown. Low voltage operation, down to 1V, fully utilizes maximal battery
life. The SP6691 is offered in a 8 Pin DFN, 5-pin SOT-23 or 5 Pin TSOT package and enables
the construction of a complete regulator occupying < 0.2 in
2
board space.
TYPICAL APPLICATION CIRCUIT
10碌H
2.7 to 4.2V
L1
D1
SW
廬
V
IN
SP6691
SHDN
4.7碌F
GND
C1
FB
C2
2.2
碌F
R
b
Date: 5/25/04
SP6691 Micro Power Boost Regualtor, Series White LED Driver
漏 Copyright 2004 Sipex Corporation5
1

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