Datasheet 搜索 > DC/DC转换器 > Linear Technology（凌力尔特） > LTC1261LCMS8 数据手册 > LTC1261LCMS8 数据手册 1/14 页
器件3D模型￥ 2.377
LTC1261LCMS8 数据手册 - Linear Technology（凌力尔特）
制造商:
Linear Technology（凌力尔特）
分类:
DC/DC转换器
封装:
MSOP-8
描述:
开关稳压器 LTC1261L - Switched Capacitor Regulated Voltage Inverter
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
导航目录
LTC1261LCMS8数据手册
Page:
of 14 Go
若手册格式错乱，请下载阅览PDF原文件
LTC1261L
1
1261lfa
TYPICAL APPLICATION
FEATURES DESCRIPTION
Switched Capacitor
Regulated Voltage Inverter
The LT C
®
1261L is a switched-capacitor voltage inverter
designed to provide a regulated negative voltage from a
single positive supply. The LTC1261L operates from a
single 2.7V to 5.25V supply and provides an adjustable
output voltage from –1.23V to –5V. The LTC1261L-4/
LTC1261L-4.5 needs a single 4.5V to 5.25V supply and
provides a fixed output voltage of –4V to –4.5V respec-
tively. Three external capacitors are required: a 0.1µF flying
capacitor and an input and output bypass capacitors. An
optional compensation capacitor at ADJ (COMP) can be
used to reduce the output voltage ripple.
Each version of the LTC1261L will supply up to 20mA
output current with guaranteed output regulation of ±4.5%.
The LTC1261L includes an open-drain REG output that
pulls low when the output is within 5% of the set value.
Quiescent current is typically 650µA when operating and
5µA in shutdown.
The LTC1261L is available in 8-pin MSOP and SO packages.
APPLICATIONS
n
Regulated Negative Voltage from a
Single Positive Supply
n
REG Pin Indicates Output is in Regulation
n
Adjustable or Fixed Output Voltages
n
Output Regulation: ±4.5%
n
Supply Current: 650µA Typ
n
Shutdown Mode Drops Supply Current to 5µA
n
Up to 20mA Output Current
n
Requires Only Three or Four External Capacitors
n
Available in MS8 and SO-8 Packages
n
GaAs FET Bias Generators
n
Negative Supply Generators
n
Battery-Powered Systems
n
Single Supply Applications
L, LT , LT C , LT M, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
–4V Generator with Power Valid
1
2
3
4
8
7
6
5
LTC1261L-4
SHDN
REG
OUT
COMP
V
CC
C1
+
C1
–
GND
C2
0.1µF
1261L TA01
C4
3.3µF
V
OUT
= –4V
AT 10mA
POWER VALID
5V
C1
1µF
5V
10k
C3*
100pF
*OPTIONAL
+
Waveforms for –4V Generator with Power Valid
0V
–4V
OUT
SHDN
0.1ms/DIV
1261L TA02
POWER VALID
5V
5V
0V
0V
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册，每天更新 5,000 多个 PDF 文件
