LTC1517-3.3 Micropower, Regulated 3.3V Charge Pump in a 5-Pin SOT-23 Package

The LTC™1517-3.3 is a micropower charge pump DC/DC converter that produces a regulated 3.3V output. The input voltage range is 2V to 4.4V, allowing a single cell lithium battery to produce a regulated 3.3V output over the entire life of the battery. Extremely low operating current (typically 6µA with no load) and low external parts count (one 0.1µF flying capacitor and two small bypass capacitors at VIN and VOUT) make the part ideally suited for small, light load battery-powered applications. The total printed circuit board area of the application circuit shown below is only 0.045in�.

The part operates as a Burst Mode’ switched-capacitor voltage doubler to produce a regulated output. The part has thermal shutdown capability and can survive a continuous short circuit from VOUT to GND. The device is available in a 5-pin SOT-23 package

产品特点 Features

Ultralow Power: Icc = 6µA Typ
Short-Circuit/Thermal Protected
3.3V �4% Regulated Output
VIN Range: 2V to 4.4V
Output Current: 8mA (VIN >/=2V) 15mA (VIN >/=2.5V)
No Inductors
Ultrasmall Application Circuit (0.045in�)
700kHz Switching Frequency
Available in 5-Pin SOT-23

参数

应用

Cellular Telephones
Battery-Operated Equipment
Local Power Supplies
Handheld Instruments
PCMCIA Supplies

典型应用图

LTC1517-3.3 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC1517CS5-3.3	SOT	5	C	$2.57
LTC1517CS5-3.3#PBF	SOT	5	C	$2.57
LTC1517CS5-3.3#TR	SOT	5	C	$2.57	$2.00
LTC1517CS5-3.3#TRM	SOT	5	C	$2.57	$2.02
LTC1517CS5-3.3#TRMPBF	SOT	5	C	$2.57	$2.02
LTC1517CS5-3.3#TRPBF	SOT	5	C	$2.57	$2.00
LTC1517CS5-5	SOT	5	C	$2.57
LTC1517CS5-5#PBF	SOT	5	C	$2.57
LTC1517CS5-5#TR	SOT	5	C	$2.57	$2.00
LTC1517CS5-5#TRM	SOT	5	C	$2.57	$2.02
LTC1517CS5-5#TRMPBF	SOT	5	C	$2.57	$2.02
LTC1517CS5-5#TRPBF	SOT	5	C	$2.57	$2.00
LTC1517ES5-3.3	SOT	5	E	$2.31
LTC1517ES5-3.3#PBF	SOT	5	E	$2.31
LTC1517ES5-3.3#TR	SOT	5	E	$2.31	$2.11
LTC1517ES5-3.3#TRM	SOT	5	E	$2.31	$2.13
LTC1517ES5-3.3#TRMPBF	SOT	5	E	$2.31	$2.13
LTC1517ES5-3.3#TRPBF	SOT	5	E	$2.31	$2.11
LTC1517ES5-5	SOT	5	E	$2.31
LTC1517ES5-5#PBF	SOT	5	E	$2.31
LTC1517ES5-5#TR	SOT	5	E	$2.31	$2.11
LTC1517ES5-5#TRM	SOT	5	E	$2.31	$2.13
LTC1517ES5-5#TRMPBF	SOT	5	E	$2.31	$2.13
LTC1517ES5-5#TRPBF	SOT	5	E	$2.31	$2.11

LTC1517-3.3 数据手册及相关资料下载

数据手册(英文) : LTC1517-3.3 - Micropower, Regulated 3.3V Charge Pump in a 5-Pin SOT-23 Package.PDF
应用指南 (英文) : AN84 - linear Technology Magazine Circuit Collection, Volume IV .PDF
设计要点 (英文) : DN142 - Ultralow Quiescent Current DC/DC Converters for Light Load Applications.PDF
可靠性数据 : R302 Reliability Data .PDF