LTC3109EUF#TRPBF datasheet, PDF

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LTC3109EUF#TRPBF: DescriptionStep Up Converter 20-Pin QFN EP T/R; File Size327KB，24 Pages; ManufacturerADI; Websitehttps://www.analog.com

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LTC3109EUF#TRPBF Overview

Step Up Converter 20-Pin QFN EP T/R

LTC3109EUF#TRPBF Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Compliant
ECCN (US)	EAR99
Part Status	Active
HTS	8542.39.00.01
Product Category	Step Up Converter
Input Voltage (V)	0.02 to 0.5
Minimum Operating Temperature (°C)	-40
Maximum Operating Temperature (°C)	125
Supplier Temperature Grade	Extended
Packaging	Tape and Reel
Pin Count	20
Standard Package Name	QFN
Supplier Package	QFN EP
Mounting	Surface Mount
Package Height	0.75(Max)
Package Length	4
Package Width	4
PCB changed	20
Lead Shape	No Lead

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FeaTures

LTC3109

Auto-Polarity, Ultralow

Voltage Step-Up Converter

and Power Manager

DescripTion

The

LTC

3109

is a highly integrated DC/DC converter ideal

for harvesting surplus energy from extremely low input

voltage sources such as TEGs (thermoelectric genera-

tors) and thermopiles. Its unique, proprietary autopolarity

topology* allows it to operate from input voltages as low

as 30mV, regardless of polarity.

Using two compact step-up transformers and external

energy storage elements, the LTC3109 provides a com-

plete power management solution for wireless sensing

and data acquisition. The 2.2V LDO can power an external

microprocessor, while the main output can be programmed

to one of four fixed voltages. The power good indicator

signals that the main output is within regulation. A second

output can be enabled by the host. A storage capacitor (or

battery) can also be charged to provide power when the

input voltage source is unavailable. Extremely low quies-

cent current and high efficiency maximizes the harvested

energy available for the application.

The LTC3109 is available in a small, thermally enhanced

20-lead (4mm

4mm) QFN package and a 20-lead SSOP

package.

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.

*Patent pending.

Operates from Inputs as Low as ±30mV

Less Than ±1°C Needed Across TEG to Harvest

Energy

Proprietary Auto-Polarity Architecture

Complete Energy Harvesting Power Management

System

– Selectable V

OUT

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

– 2.2V, 5mA LDO

– Logic-Controlled Output

– Energy Storage Capability for Operation During

Power Interruption

Power Good Indicator

Uses Compact Step-up Transformers

Small, 20-lead (4mm

4mm) QFN Package or

20-Lead SSOP

applicaTions

Remote Sensor and Radio Power

HVAC Systems

Automatic Metering

Building Automation

Predictive Maintenance

Industrial Wireless Sensing

Typical applicaTion

TEG

(THERMOELECTRIC GENERATOR)

±30mV TO ±500mV

1:100

1nF

•

C1A

470pF

C2A

SWA

INA

C1B

470pF

C2B

OUT2

OUT

VLDO

OPTIONAL SWITCHED OUTPUT FOR SENSORS

3.3V

2.2V

2.2µF

OUT

Current vs TEG Voltage

900

800

1:100 TRANSFORMERS

C1A = C1B = 1nF

OUT

= 3.3V

47µF

470µF

700

LOW POWER

RADIO

600

VOUT

(µA)

500

400

300

200

•

1:100

1nF

LTC3109

µP

PG00D

•

SENSOR(S)

VAUX

SWB V

OUT2_EN

INB

VS1

VSTORE

VAUX

VS2

GND

5.25V

1µF

100

STORE

3109 TA01a

–300

–200

–100

100

TEG

(mV)

200

300

3109 TA01b

3109fb

For more information

www.linear.com/LTC3109

LTC3109EUF#TRPBF Related Products

	LTC3109EUF#TRPBF	LTC3109EGN#PBF	LTC3109EGN#TRPBF	LTC3109EUF#PBF	LTC3109IGN#PBF	LTC3109IGN#TRPBF	LTC3109IUF#PBF	LTC3109IUF#TRPBF
Description	Step Up Converter 20-Pin QFN EP T/R	Step Up Converter 20-Pin SSOP N Tube	Step Up Converter 20-Pin SSOP N T/R	Step Up Converter 20-Pin QFN EP Tube	Step Up Converter 20-Pin SSOP N Tube	Step Up Converter 20-Pin SSOP N T/R	Step Up Converter 20-Pin QFN EP Tube	Step Up Converter 20-Pin QFN EP T/R
EU restricts the use of certain hazardous substances	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant
ECCN (US)	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Part Status	Active	Active	Active	Active	Active	Active	Active	Active
Product Category	Step Up Converter	Step Up Converter	Step Up Converter	Step Up Converter	Step Up Converter	Step Up Converter	Step Up Converter	Step Up Converter
Input Voltage (V)	0.02 to 0.5	0.02 to 0.5	0.02 to 0.5	0.02 to 0.5	0.02 to 0.5	0.02 to 0.5	0.02 to 0.5	0.02 to 0.5
Minimum Operating Temperature (°C)	-40	-40	-40	-40	-40	-40	-40	-40
Maximum Operating Temperature (°C)	125	125	125	125	125	125	125	125
Supplier Temperature Grade	Extended	Extended	Extended	Extended	Industrial	Industrial	Industrial	Industrial
Packaging	Tape and Reel	Tube	Tape and Reel	Tube	Tube	Tape and Reel	Tube	Tape and Reel
Pin Count	20	20	20	20	20	20	20	20
Standard Package Name	QFN	SOP	SOP	QFN	SOP	SOP	QFN	QFN
Supplier Package	QFN EP	SSOP N	SSOP N	QFN EP	SSOP N	SSOP N	QFN EP	QFN EP
Mounting	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package Height	0.75(Max)	1.5(Max)	1.5(Max)	0.75(Max)	1.5(Max)	1.5(Max)	0.75(Max)	0.75(Max)
Package Length	4	8.74(Max)	8.74(Max)	4	8.74(Max)	8.74(Max)	4	4
Package Width	4	3.99(Max)	3.99(Max)	4	3.99(Max)	3.99(Max)	4	4
PCB changed	20	20	20	20	20	20	20	20
Lead Shape	No Lead	Gull-wing	Gull-wing	No Lead	Gull-wing	Gull-wing	No Lead	No Lead
HTS	8542.39.00.01	8542.39.00.01	8542.39.00.01	8542.39.00.01	-	-	8542.39.00.01	8542.39.00.01

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