Datasheet > LTC4O70

LTC4O70

更新时间： 2024-09-16 11:45:59

品牌	Logo	应用领域
Linear Systems		转换器
页数	文件大小	规格书
22页	224K
描述
Ultralow Voltage Step-Up Converter and Power Manager

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中文翻译

获取价格

数据手册

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LTC4O70 数据手册

LTC3108

Ultralow Voltage Step-Up

Converter and Power Manager

FEATURES

DESCRIPTION

TheLTC^®3108isahighlyintegratedDC/DCconverterideal

forharvestingandmanagingsurplusenergyfromextremely

low input voltage sources such as TEGs (thermoelectric

generators),thermopilesandsmallsolarcells.Thestep-up

topology operates from input voltages as low as 20mV.

The LTC3108 is functionally equivalent to the LTC3108-1

Operates from Inputs of 20mV

Complete Energy Harvesting Power

Management System

- Selectable V

of 2.35V, 3.3V, 4.1V or 5V

OUT

- LDO: 2.2V at 3mA

- Logic Controlled Output

- Reserve Energy Output

Power Good Indicator

Uses Compact Step-Up Transformers

Small 12-Lead (3mm × 4mm) DFN or 16-Lead

SSOP Packages

except for its unique ﬁxed V

options.

OUT

Usingasmallstep-uptransformer,theLTC3108providesa

completepowermanagementsolutionforwirelesssensing

and data acquisition. The 2.2V LDO powers an external

microprocessor, while the main output is programmed to

one of four ﬁxed voltages to power a wireless transmitter

orsensors.Thepowergoodindicatorsignalsthatthemain

outputvoltageiswithinregulation.Asecondoutputcanbe

enabled by the host. A storage capacitor provides power

when the input voltage source is unavailable. Extremely

low quiescent current and high efﬁciency design ensure

the fastest possible charge times of the output reservoir

capacitor.

APPLICATIONS

Remote Sensors and Radio Power

Surplus Heat Energy Harvesting

HVAC Systems

Industrial Wireless Sensing

Automatic Metering

Building Automation

Predictive Maintenance

The LTC3108 is available in a small, thermally enhanced

12-lead (3mm × 4mm) DFN package and a 16-lead SSOP

package.

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

TYPICAL APPLICATION

Wireless Remote Sensor Application Powered From a Peltier Cell

V_OUTCharge Time

1nF

1:100

1000

100

VSTORE

LTC3108

= 3.3V

= 470μF

OUT

0.1F

6.3V

THERMOELECTRIC

GENERATOR

220μF

330pF

OUT2

PGOOD

2.2V

PGD

VLDO

μP

20mV TO 500mV

2.2μF

SENSORS

RF LINK

3.3V

VS2

OUT

470μF

1:100 Ratio

1:50 Ratio

1:20 Ratio

VS1

OUT2_EN

GND

3108 TA01a

VAUX

100 150 200 250 300 350 400

(mV)

1μF

3108 TA01b

3108fb

12 3 4 5 6 7...22

中文翻译

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