Datasheet > LTC3330

LTC3330

更新时间： 2022-04-09 17:34:25

品牌	Logo	应用领域
凌特 - Linear		稳压器电池
页数	文件大小	规格书
20页	179K
描述
Energy Harvesting DC/DC with Battery Backup Low Noise LDO Post Regulator

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LTC3330 数据手册

Electrical Specifications Subject to Change

LTC3330

Energy Harvesting DC/DC

with Battery Backup

FeaTures

DescripTion

The LTC^®3330 integrates a high voltage energy harvesting

powersupplyplusaDC/DCconverterpoweredbyaprimary

cell battery to create a single output supply for alternative

energy applications. The energy harvesting power supply,

consisting of an integrated full-wave bridge rectifier and a

high voltage buck converter, harvests energy from piezo-

electric, solar, ormagnetic sources. The primary cellinput

powersabuck-boostconvertercapableofoperationdown

to 1.8V at its input. Either DC/DC converter can deliver en-

ergytoasingleoutput. Thebuckoperateswhenharvested

energy is available, reducing the quiescent current draw

on the battery to essentially zero. The buck-boost takes

over when harvested energy goes away.

Dual Input, Single Output DC/DC’s with Input

Prioritizer

Energy Harvesting Input: 3.0V to 18V Buck DC/DC

Primary Cell Input: 1.8V to 5.5V Buck-Boost DC/DC

Zero Battery I When Powering Load from

Harvested Energy

Ultralow Quiescent Current: 900nA at No-Load

Low Noise LDO Post Regulator

Integrated Supercapacitor Balancer

Up to 50mA of Output Current

Programmable DC/DC and LDO Output Voltages,

Buck UVLO, and Buck-Boost Peak Input Current

Integrated Low Loss Full-Wave Bridge Rectifier

Input Protective Shunt–Up to 25mA at V ≥ 20V

5mm × 5mm QFN-32 Package

A low noise LDO post regulator and a supercapacitor

balancerarealsointegrated,accommodatingawiderange

of output storage configurations.

applicaTions

Voltage and current settings for both inputs and outputs

are programmable via pin-strapped logic inputs.

Energy Harvesting

Solar Powered Systems with Primary Cell Backup

TheLTC3330isavailableina5mm×5mmQFN-32package.

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.

Wireless HVAC Sensors and Security Devices

Mobile Asset Tracking

Typical applicaTion

4V TO 18V

AC1

AC2

PIEZO

MIDE

V25W

22µH

SOLAR

PANEL

3V TO 18V

LTC3330

10µF

25V

1µF

SWA

SWB

–

CAP

4.7µF, 6V

1.2V TO 5V

50mA

OUT

IN2

LDO_IN

SCAP

22µF

10mF

2.5V

BAT

1µF

PRIMARY

CELL

1.8V TO 5.5V

BAL

10mF

2.5V

OUT[2:0]

LDO[2:0]

IPK[2:0]

UV[3:0]

LDO_EN

EH_ON

OPTIONAL

PGVOUT

PGLDO

1.2V TO 3.6V

50mA

LDO_OUT

IN3

1µF

2.2µF

GND

3330 TA01a

3330p

For more information www.linear.com/LTC3330

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