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參數資料
型號: LTC1174CN8-3.3#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩壓器
英文描述: 1 A SWITCHING REGULATOR, 200 kHz SWITCHING FREQ-MAX, PDIP8
封裝: 0.300 INCH, LEAD FREE, PLASTIC, DIP-8
文件頁數: 1/20頁
文件大小: 251K
代理商: LTC1174CN8-3.3#TRPBF
1
LTC1174
LTC1174-3.3/LTC1174-5
1174fe
High Efficiency
Step-Down and Inverting
DC/DC Converter
High Efficiency Step-Down Converter
LTC1174-5 Efficiency
High Efficiency: Up to 94%
Peak Inductor Current Independent of
Inductor Value
Short-Circuit Protection
Optimized for 5V to – 5V Applications
Wide VIN Range: 4V to 18.5V
Low Dropout Operation
Low-Battery Detector
Pin Selectable Current Limit
Internal 0.9
Power Switch: VIN = 9V
Only Four External Components Required
130
A Standby Current
Active Low Micropower Shutdown
Distributed Power Systems
Step-Down Converters
Inverting Converters
Memory Backup Supply
Portable Instruments
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
A.
In shutdown, it draws a mere 1
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
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
VIN
9V
3
LTC1174-5
LBIN
LBOUT
IPGM
GND
VIN
SHUTDOWN
VOUT
SW
2
7
6
8
1
5
4
100
H
100
F**
10V
5V
175mA
15
F*
25V
×3
1N5818
1174 TA01
*
**
(3) AVX TPSD156K025
AVX TPSD107K010
COILTRONICS CTX100-4
+
LOAD CURRENT (mA)
1
EFFICIENCY
(%)
100
95
90
85
80
75
70
10
100
1174 TA02
200
VIN = 6V
VIN = 9V
L = 100
H
VOUT = 5V
IPGM = 0V
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
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相關代理商/技術參數
參數描述
LTC1174CN8-5 功能描述:IC REG BUCK INV 5V 1A 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:降壓(降壓) 輸出類型:固定 輸出數: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:- 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) 供應商設備封裝:10-MSOP 裸露焊盤
LTC1174CN8-5#PBF 功能描述:IC REG BUCK INV 5V 1A 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:降壓(降壓) 輸出類型:固定 輸出數: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:- 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) 供應商設備封裝:10-MSOP 裸露焊盤
LTC1174CN8-5PBF 制造商:Linear Technology 功能描述:Inverting dc-dc converter,LTC1174CN8-5
LTC1174CS8 功能描述:IC REG BUCK INV ADJ 1A 8SOIC 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:降壓(降壓) 輸出類型:固定 輸出數: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:- 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) 供應商設備封裝:10-MSOP 裸露焊盤
LTC1174CS8#PBF 功能描述:IC REG BUCK INV ADJ 1A 8SOIC 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:250 系列:- 類型:降壓(降壓) 輸出類型:固定 輸出數:1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關:2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應商設備封裝:6-SON(1.45x1) 產品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2
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