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參數資料
| 型號： | LT1103CY |
| 英文描述： | Current-Mode SMPS Controller |
| 中文描述： | 電流模式開關電源控制器 |
| 文件頁數： | 1/16頁 |
| 文件大?。?/td> | 206K |
| 代理商： | LT1103CY |
1
LT1107
1107fa
FEATURES
APPLICATIU
DESCRIPTIOU
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
μ
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.
TYPICAL APPLICATIOU
Micropower
DC/DC Converter
Adjustable and Fixed 5V, 12V
Efficiency
I
Operates at Supply Voltages from 2V to 30V
I
Consumes Only 320
μ
A Supply Current
I
Works in Step-Up or Step-Down Mode
I
Only Three External Components Required
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
Palmtop Computers
I
3V to 5V, 5V to 12V Converters
I
24V to 5V, 12V to 5V Converters
I
LCD Bias Generators
I
Peripherals and Add-On Cards
I
Battery Backup Supplies
I
Cellular Telephones
I
Portable Instruments
LOAD CURRENT (mA)
1
E
82
80
78
76
74
72
70
68
66
64
10
100
400
1107 TA02
V
IN
= 3V
V
IN
= 2.5V
V
IN
= 2V
5V
150mA
MBRS120T3
L1*
33
μ
H
47
2
×
AA
ALKALINE
CELLS
100
μ
F
SUMIDA CD54-330K
COILCRAFT DT3316-473
*
I
LIM
V
IN
SENSE
SW2
SW1
GND
47
μ
F
LT1107-5
1107 TA01
+
+
Palmtop Computer Logic Supply
, LTC and LT are registered trademarks of Linear Technology Corporation
相關PDF資料 |
PDF描述 |
|---|---|
| LT1105CS | Current-Mode SMPS Controller |
| LT1117IST-2.85 | THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS |
| LT1117IST-3.3 | THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS |
| LT1117IST-5 | THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS |
| LT1118CST8-2.5 | Analog IC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LT1105 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Offline Switching Regulator |
| LT1105C | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Offline Switching Regulator |
| LT1105CN | 功能描述:IC OFFLINE SWIT CM HV 14DIP RoHS:否 類別:集成電路 (IC) >> PMIC - AC-DC 轉換器，離線開關 系列:- 標準包裝:3,000 系列:- 輸出隔離:隔離 頻率范圍:61kHz ~ 71kHz 輸入電壓:9.4 V ~ 28 V 輸出電壓:12V 功率（瓦特）:- 工作溫度:-40°C ~ 125°C 封裝/外殼:SC-74，SOT-457 供應商設備封裝:6-TSOP 包裝:帶卷 (TR) |
| LT1105CN#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single 30V 14-Pin PDIP N |
| LT1105CN8 | 功能描述:IC OFFLINE SWIT CM HV 8DIP RoHS:否 類別:集成電路 (IC) >> PMIC - AC-DC 轉換器，離線開關 系列:- 標準包裝:3,000 系列:- 輸出隔離:隔離 頻率范圍:61kHz ~ 71kHz 輸入電壓:9.4 V ~ 28 V 輸出電壓:12V 功率（瓦特）:- 工作溫度:-40°C ~ 125°C 封裝/外殼:SC-74，SOT-457 供應商設備封裝:6-TSOP 包裝:帶卷 (TR) |
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