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參數(shù)資料
| 型號： | LTC1174 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | High Efficiency Step-Down and Inverting DC/DC Converter(高效率,反相DC/DC變換器) |
| 中文描述： | 高效率降壓和倒轉(zhuǎn)DC / DC轉(zhuǎn)換器（高效率，反相直流/直流變換器） |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 246K |
| 代理商： | LTC1174 |
1
LTC1174
LTC1174-3.3/LTC1174-5
High Efficiency
Step-Down and Inverting
DC/DC Converter
High Efficiency Step-Down Converter
LTC1174-5 Efficiency
I
High Efficiency: Up to 94%
I
Peak Inductor Current Independent of
Inductor Value
I
Short-Circuit Protection
I
Optimized for 5V to –5V Applications
I
Wide V
IN
Range: 4V to 18.5V
I
Low Dropout Operation
I
Low-Battery Detector
I
Pin Selectable Current Limit
I
Internal 0.9
Power Switch: V
IN
= 9V
I
Only Four External Components Required
I
130
μ
A Standby Current
I
Active Low Micropower Shutdown
I
Distributed Power Systems
I
Step-Down Converters
I
Inverting Converters
I
Memory Backup Supply
I
Portable Instruments
I
Battery-Powered Equipment
The LTC
1174 is a simple current mode DC/DC converter
ideally suited for 9V to 5V, 5V to 3.3V or 5V to –5V
operation. With an internal 0.9
switch (at a supply
voltage of 9V), the LTC1174 requires only four external
components to construct a complete high efficiency
DC/DC converter.
Under a no load condition the LTC1174 draws only 130
μ
A.
In shutdown, it draws a mere 1
μ
A making this converter
ideal for current sensitive applications. In dropout, the
internal P-channel MOSFET switch is turned on continu-
ously allowing the user to maximize the life of the battery
source.
The maximum inductor current of the LTC1174 family is
pin selectable to either 340mA or 600mA, optimizing
efficiency for a wide range of applications. Operation up to
200kHz permits the use of small surface mount inductors
and capacitors.
For applications requiring higher output current or ultra-
high efficiency, see the LTC1148 data sheet.
FEATURES
DESCRIPTIOU
APPLICATIU
TYPICAL APPLICATIO
U
V
IN
9V
3
2
LTC1174-5
LB
IN
LB
OUT
I
PGM
GND
V
IN
SHUTDOWN
V
OUT
SW
7
6
8
1
5
4
100
μ
H
100
μ
F**
10V
5V
175mA
15
μ
F*
25V
×
3
1N5818
1174 TA01
*
**
(3) AVX TPSD156K025
AVX TPSD107K010
COILTRONICS CTX100-4
+
+
LOAD CURRENT (mA)
1
E
100
95
90
85
80
75
70
10
100
1174 TA02
200
V
IN
= 6V
V
IN
= 9V
L = 100
μ
H
V
OUT
= 5V
I
PGM
= 0V
and LTC are registered trademarks and LT is a trademark of Linear Technology Corporation.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1174-3.3 | High Efficiency Step-Down and Inverting DC/DC Converter(高效率,步降DC/DC變換器) |
| LTC1174-5 | High Efficiency Step-Down and Inverting DC/DC Converter(高效率,步降DC/DC變換器) |
| LTC1177-12 | Isolated High Side MOSFET Drivers(隔離型高邊MOS場效應(yīng)管驅(qū)動器（輸入電流2.5mA）) |
| LTC1177-5 | Isolated High Side MOSFET Drivers(隔離型高邊MOS場效應(yīng)管驅(qū)動器（輸入電流1mA）) |
| LTC1196 | 8-Bit, SO-8,1MSPS ADCs(SO-8封裝，8位，1MSPS，模數(shù)轉(zhuǎn)換器（差分輸入）) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1174_06 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Efficiency Step-Down and Inverting DC/DC Converter |
| LTC1174-3.3 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Efficiency Step-Down and Inverting DC/DC Converter |
| LTC1174-3.3/ LTC1174-5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:High Efficiency Step-Down and Inverting DC/DC Converter |
| LTC1174-5 | 制造商:LINEAR 制造商全稱:LINEAR 功能描述:高效率步降和逆變DC / DC轉(zhuǎn)換器 |
| LTC1174CN8 | 功能描述:IC REG BUCK INV ADJ 1A 8DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
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