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參數(shù)資料
| 型號： | LT1107IS8-5 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.5 A SWITCHING REGULATOR, 77 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SOP-8 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 207K |
| 代理商： | LT1107IS8-5 |
1
LT1107
1107fa
FEATURES
APPLICATIO S
U
DESCRIPTIO
U
TYPICAL APPLICATIO
U
Micropower
DC/DC Converter
Adjustable and Fixed 5V, 12V
Efficiency
s
Operates at Supply Voltages from 2V to 30V
s
Consumes Only 320
A Supply Current
s
Works in Step-Up or Step-Down Mode
s
Only Three External Components Required
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
The LT
1107 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 LT1107 functions equally well in step-up, step-
down, or inverting applications.
The LT1107 is pin-for-pin compatible with the LT1111, but
has a duty cycle of 70%, resulting in increased output
current in many applications. The LT1107 can deliver
150mA at 5V from a 2AA cell input and 5V at 300mA from
24V in step-down mode. Quiescent current is just 320
A,
making the LT1107 ideal for power-conscious battery-
operated systems. The 63kHz oscillator is optimized to
work with surface mount inductors and capacitors.
Switch current limit can be programmed with a single
resistor. An auxiliary gain block can be configured as a
low-battery detector, linear post regulator, undervoltage
lock-out circuit, or error amplifier.
s
Palmtop Computers
s
3V to 5V, 5V to 12V Converters
s
24V to 5V, 12V to 5V Converters
s
LCD Bias Generators
s
Peripherals and Add-On Cards
s
Battery Backup Supplies
s
Cellular Telephones
s
Portable Instruments
LOAD CURRENT (mA)
1
EFFICIENCY
(%)
82
80
78
76
74
72
70
68
66
64
10
100
400
1107 TA02
VIN = 3V
VIN = 2.5V
VIN = 2V
5V
150mA
MBRS120T3
L1*
33
H
47
2
× AA
ALKALINE
CELLS
100
F
SUMIDA CD54-330K
COILCRAFT DT3316-473
*
ILIM
VIN
SENSE
SW1
SW2
GND
47
F
LT1107-5
1107 TA01
+
Palmtop Computer Logic Supply
, 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 |
|---|---|
| LT1107M | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1107MJ8 | 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 |
| LT1107MJ8-12 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1107MJ8-5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1108 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
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