參數(shù)資料
型號(hào)： LT3470ITS8
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(yè)數(shù)： 1/16頁(yè)
文件大?。?/td> 205K
代理商： LT3470ITS8
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(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT3470ITS8#PBF 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 4V to 40V 8-Pin TSOT-23 制造商:Linear Technology 功能描述:IC BUCK REGULATOR 8-TSOT-23 制造商:Linear Technology 功能描述:SP-SWREG/Monolithic, Cut Tape 300mA, 40V Micropower Step-Down Reg in ThinSOT 制造商:Linear Technology 功能描述:IC, BUCK REGULATOR, 8-TSOT-23, Primary Input Voltage:40V, No. of Outputs:1, Output Voltage:16V, Output Current:200mA, No. of Pins:8, Operating Temperature Min:-40C, Operating Temperature Max:125C, MSL:MSL 1 - Unlimited , RoHS Compliant: Yes
LT3470ITS8#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 制造商:Linear Technology 功能描述:SP-SWREG/Monolithic, 300mA, 40V Micropower Step-Down Reg in ThinSOT
LT3470ITS8#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
LT3470ITS8#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(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(guān):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(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁(yè)面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2
LT3470ITS8#TRPBF 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(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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