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參數(shù)資料
| 型號(hào)： | LT1111 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| 中文描述： | 微功率DC / DC轉(zhuǎn)換可調(diào)和固定5V，12V的 |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大?。?/td> | 337K |
| 代理商： | LT1111 |
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1
LT1111
33 F
μ
SUMIDA
CD54-220M
22
μ
H
LT1111 TA01
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
D
U
ESCRIPTIO
S
FEATURE
U
S
A
O
PPLICATI
Typical Load Regulation
0
LOAD CURRENT (mA)
0
1
O
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
I
Operates at Supply Voltages from 2V to 30V
I
72kHz Oscillator
I
Works with Surface Mount Inductors
I
Only Three External Components Required
I
Step-Up or Step-Down Mode
I
Low-Battery Detector Comparator On-Chip
I
User Adjustable Current Limit
I
Internal 1A Power Switch
I
Fixed or Adjustable Output Voltage Versions
I
Space Saving 8-Pin MiniDIP or SO-8 Package
I
3V to 5V, 5V to 12V Converters
I
9V to 5V, 12V to 5V Converters
I
Remote Controls
I
Peripherals and Add-On Cards
I
Battery Backup Supplies
I
Uninterruptible Supplies
I
Laptop and Palmtop Computers
I
Cellular Telephones
I
Portable Instruments
I
Flash Memory VPP Generators
U
A
O
PPLICATI
TYPICAL
The LT1111 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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1111C | Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1111CN8 | Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1111CN8-5 | Dual 4-Input Positive-NAND Gates 14-SOIC 0 to 70 |
| LT1111CS8 | Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1111CS8-12 | Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1111_03 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1111-12 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1111-5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1111C | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1111CJ8 | 制造商:Linear Technology 功能描述:Conv DC-DC Single Non-Inv/Inv/Step Up/Step Down 2V to 30V 8-Pin CDIP |
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