參數資料
型號: LTC1174IN8
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: High Efficiency Step-Down and Inverting DC/DC Converter
中文描述: 1 A SWITCHING REGULATOR, 200 kHz SWITCHING FREQ-MAX, PDIP8
封裝: 0.300 INCH, PLASTIC, DIP-8
文件頁數: 1/16頁
文件大?。?/td> 353K
代理商: LTC1174IN8
1
LTC1174
LTC1174-3.3/LTC1174-5
High Efficiency
Step-Down and Inverting
DC/DC Converter
S
FEATURE
D
U
ESCRIPTIO
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
High Efficiency Step-Down Converter
+
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
3
×
15
μ
F*
25V
1N5818
1174 TA01
*
**
(3) AVX TPSD156K025
AVX TPSD107K010
COILTRONICS CTX100-4
LTC1174-5 Efficiency
U
A
O
PPLICATI
TYPICAL
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 LT1174 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.
U
S
A
O
PPLICATI
and LTC are registered trademarks and LT is a trademark of Linear Technology Corporation.
相關PDF資料
PDF描述
LTC1196-1AC 8-Bit, SO-8, 1MSPS ADCs with Auto-Shutdown Options
LTC1196-1ACS8 8-Bit, SO-8, 1MSPS ADCs with Auto-Shutdown Options
LTC1196-1BC 8-Bit, SO-8, 1MSPS ADCs with Auto-Shutdown Options
LTC1196-1BCS8 8-Bit, SO-8, 1MSPS ADCs with Auto-Shutdown Options
LTC1196-2AC ECONOLINE: RSS & RSD - 1kVDC and 3KVDC Isolation- Internal SMD Construction- UL94V-0 Package Material- Toroidal Magnetics- Efficiency to 85%- SMD5, SMD8, SMD10 and SMD12 case styles
相關代理商/技術參數
參數描述
LTC1174IN8#PBF 功能描述:IC REG BUCK INV ADJ 1A 8DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)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
LTC1174IS8 功能描述:IC REG BUCK INV ADJ 1A 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)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
LTC1174IS8#PBF 功能描述:IC REG BUCK INV ADJ 1A 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)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
LTC1174IS8#TR 功能描述:IC REG BUCK INV ADJ 1A 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)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
LTC1174IS8#TRPBF 功能描述:IC REG BUCK INV ADJ 1A 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)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