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參數(shù)資料
| 型號(hào)： | LT1111IS8-5#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, PDSO8 |
| 封裝： | LEAD FREE, SOIC-8 |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大小： | 237K |
| 代理商： | LT1111IS8-5#PBF |
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1
LT1111
1111fd
TYPICAL APPLICATIO
U
APPLICATIO S
U
DESCRIPTIO
U
FEATURES
33 F
SUMIDA
CD54-220M
22
H
LT1111 TA01
MBRS120T3
5V
100mA
GND
SW2
SW1
LIM
I
IN
V
LT1111CS8-5
SENSE
3V INPUT
10 F*
+
*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
VIN = 2V 2.2 2.4
2.6
2.8
3V
s
Operates at Supply Voltages from 2V to 30V
s
Works with Surface Mount Inductors
s
72kHz Oscillator
s
Only Three External Components Required
s
Step-Up or Step-Down Mode
s
Low-Battery Detector Comparator On-Chip
s
User Adjustable Current Limit
s
Internal 1A Power Switch
s
Fixed or Adjustable Output Voltage Versions
s
Space Saving 8-Pin MiniDIP or SO-8 Package
s
3V to 5V, 5V to 12V Converters
s
9V to 5V, 12V to 5V Converters
s
Remote Controls
s
Peripherals and Add-On Cards
s
Battery Backup Supplies
s
Uninterruptible Supplies
s
Laptop and Palmtop Computers
s
Cellular Telephones
s
Portable Instruments
s
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
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1111IS8PBF | 制造商:Linear Technology 功能描述:DC/DC Converter Adj Micropower 2-30V SO8 |
| LT1111M | 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1111MJ8 | 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1111MJ8-12 | 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1111MJ8-5 | 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
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