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參數資料
| 型號： | LT1107-12 |
| 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轉換可調和固定5V，12V的 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 254K |
| 代理商： | LT1107-12 |
1
LT1107
Micropower
DC/DC Converter
Adjustable and Fixed 5V, 12V
U
A
O
PPLICATI
TYPICAL
Efficiency
D
The LT1107 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.
U
ESCRIPTIO
S
FEATURE
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
U
S
A
O
PPLICATI
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
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PDF描述 |
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| LT1107-5 | Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1107 | Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1107M | Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1107MJ8 | Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LT1107-5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1107C | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1107CN8 | 功能描述:IC REG BUCK BST INV ADJ .4A 8DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調式 輸出數:1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關:600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應商設備封裝:8-SOIC |
| LT1107CN8#PBF | 功能描述:IC REG BUCK BST INV ADJ .4A 8DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調式 輸出數:1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關:600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應商設備封裝:8-SOIC |
| LT1107CN8-12 | 功能描述:IC REG BUCK BST INV 12V .4A 8DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調式 輸出數:1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關:600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應商設備封裝:8-SOIC |
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