Datasheet 搜索 > DC/DC转换器 > Linear Technology（凌力尔特） > LT1111IS8 数据手册 > LT1111IS8 数据手册 1/16 页
器件3D模型￥ 102.284
LT1111IS8 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:
SOIC-8
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
导航目录
LT1111IS8数据手册
Page:
of 16 Go
若手册格式错乱，请下载阅览PDF原文件
1
L T 1111
1111fd
TYPICAL APPLICATIO
U
APPLICATIO S
U
DESCRIPTIO
U
FEATURES
33 F
SUMIDA
CD54-220M
22µH
LT1111 • TA01
µ
MBRS120T3
5V
100mA
GND SW2
SW1
LIM
I
IN
V
LT1111CS8-5
SENSE
3V INPUT
10 F*
µ
+
*OPTIONAL
+
Micropower
DC/DC Converter
Adjustable and Fixed 5V, 12V
All Surface Mount 3V to 5V Step-Up Converter
Typical Load Regulation
0
LOAD CURRENT (mA)
0
1
OUTPUT VOLTAGE (V)
2
3
4
5
6
50 100 150 200
LT1111 • TA02
25 75 125 175
V
IN
= 2V 2.2 2.4 2.6 2.8 3V
■
Operates at Supply Voltages from 2V to 30V
■
Works with Surface Mount Inductors
■
72kHz Oscillator
■
Only Three External Components Required
■
Step-Up or Step-Down Mode
■
Low-Battery Detector Comparator On-Chip
■
User Adjustable Current Limit
■
Internal 1A Power Switch
■
Fixed or Adjustable Output Voltage Versions
■
Space Saving 8-Pin MiniDIP or SO-8 Package
■
3V to 5V, 5V to 12V Converters
■
9V to 5V, 12V to 5V Converters
■
Remote Controls
■
Peripherals and Add-On Cards
■
Battery Backup Supplies
■
Uninterruptible Supplies
■
Laptop and Palmtop Computers
■
Cellular Telephones
■
Portable Instruments
■
Flash Memory VPP Generators
The LT
®
1111 is a versatile micropower DC/DC converter.
The device requires only three external components to
deliver a fixed output of 5V or 12V. Supply voltage ranges
from 2V to 12V in step-up mode and to 30V in step-down
mode. The LT1111 functions equally well in step-up, step-
down, or inverting applications.
The LT1111 oscillator is set at 72kHz, optimizing the
device to work with off-the-shelf surface mount inductors.
The device can deliver 5V at 100mA from a 3V input in
step-up mode or 5V at 200mA from a 12V input in step-
down mode.
Switch current limit can be programmed with a single
resistor. An auxiliary open-collector gain block can be
configured as a low-battery detector, linear post regulator,
undervoltage lock-out circuit, or error amplifier.
For input sources of less than 2V use the LT1110.
, LTC and LT are registered trademarks of Linear Technology Corporation
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
