LX2172/73
PRODUCT DATABOOK 1996/1997
1.25A HIGH-EFFICIENCY 100KHZ SWITCHING REGULATOR
PR E L I M I N A RY D ATA S H E E T
T H E O R Y O F O P E R AT I O N
VOUT
14.7kΩ
1.27Ω
22µF
1 GND
E2 8
0.03µF
2 VC
3 FB
VSW 7
LX2172
E1 6
4 SYNC
VIN 5
100Ω
VIN
VIN
+3V to +12V
180µH
1N5817
VOUT
+16V
VIN
FIGURE 1 — Boost Coverter Circuit Using The LX2172 / 2173
PRELIMINARY DATA - Information contained in this document is pre-production data, and is proprietary to Linfinity. It may
not modified in any way without the express written consent of Linfinity. Product referred to herein is offered in sample form
only, and Linfinity reserves the right to change or discontinue this proposed product at any time.
6
Copyright © 1998
Rev. 0.4a 12/04