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參數(shù)資料
| 型號： | LT3470ETS8 |
| 廠商： | Linear Integrated Systems |
| 英文描述： | Micropower Buck Regulator with Integrated Boost and Catch Diodes |
| 中文描述： | 微功耗降壓穩(wěn)壓器與集成升壓二極管和捕捉 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 205K |
| 代理商： | LT3470ETS8 |
1
LT3470
3470f
■
Automotive Battery Regulation
■
Power for Portable Products
■
Distributed Supply Regulation
■
Industrial Supplies
■
Wall Transformer Regulation
Micropower Buck Regulator
with Integrated Boost and
Catch Diodes
■
Low Quiescent Current: 26
μ
A at 12V
IN
to 3.3V
OUT
■
Integrated Boost and Catch Diodes
■
Input Range: 4V to 40V
■
Low Output Ripple: <10mV
■
<1
μ
A in Shutdown Mode
■
Output Voltage: 1.25V to 16V
■
200mA Output Current
■
Hysteretic Mode Control
– Low Ripple Burst Mode
Operation at Light Loads
– Continuous Operation at Higher Loads
■
Solution Size as Small as 50mm
2
■
Low Profile (1mm) ThinSOT Package
APPLICATIU
Efficiency and Power Loss vs Load Current
Burst Mode is a registered trademark of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
FEATURES
DESCRIPTIOU
The LT
3470 is a micropower step-down DC/DC converter
that integrates a 300mA power switch, catch diode and
boost diode into a low profile (1mm) ThinSOT
TM
package.
The LT3470 combines Burst Mode and continuous opera-
tion to allow the use of tiny inductor and capacitors while
providing a low ripple output to loads of up to 200mA.
With its wide input range of 4V to 40V, the LT3470 can
regulate a wide variety of power sources, from 2-cell
Li-Ion batteries to unregulated wall transformers and lead-
acid batteries. Quiescent current in regulation is just 26
μ
A
in a typical application while a zero current shutdown
mode disconnects the load from the input source, simpli-
fying power management in battery-powered systems.
Fast current limiting and hysteretic control protects the
LT3470 and external components against shorted out-
puts, even at 40V input.
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATIO
U
LOAD CURRENT (mA)
30
E
P
40
60
80
90
0.1
10
100
3470 TA02
20
1
70
50
10
1
1000
100
10
0.1
V
IN
= 12V
V
IN
BOOST
LT3470
SW
BIAS
SHDN
0.22
μ
F
22pF
22
μ
F
2.2
μ
F
V
IN
7V TO 40V
V
OUT
5V
200mA
604k
1%
200k
1%
33
μ
H
FB
GND
OFF ON
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT3470ETS8#PBF | 制造商:Linear Technology 功能描述:DC-DC CONVERTER BUCK ADJ 20 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BUCK, ADJ, 200mA, TSOT-23-8; Primary Input Voltage:40V; No. of Outputs:1; Output Current:200mA; No. of Pins:8; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:8-TSOT-23 ;RoHS Compliant: Yes |
| LT3470ETS8#TR | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 4V to 40V 8-Pin TSOT-23 T/R |
| LT3470ETS8#TRM | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 4V to 40V 8-Pin TSOT-23 T/R |
| LT3470ETS8#TRMPBF | 功能描述:IC REG BUCK ADJ 0.2A TSOT23-8 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:250 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 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 |
| LT3470ETS8#TRMPBF | 制造商:Linear Technology 功能描述:DC/DC Converter IC 制造商:Linear Technology 功能描述:IC, BUCK REGULATOR, 8-TSOT-23 |
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