LTC3109EGN#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock

Name: LTC3109EGN#PBF
Brand: Analog Devices
SKU: LTC3109EGN#PBF
Availability: InStock

Analog Devices LTC3109 auto-polarity ultralow voltage step-up converter and power manager in 20-pin SSOP package. Harvests energy from thermoelectric generators with input voltages as low as 30 mV. Also operates as an LDO regulator, available in lead-free version with worldwide shipping.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

LTC3109EGN#PBFSmall Outline Packages

Quick Facts

Manufacturer: Analog Devices
Package: Small Outline Packages
Pin Count: 20
Lifecycle: ACTIVE
Datasheet: LTC3109EGN#PBF Datasheet PDF
Category: Integrated Circuit
Price: From $5.4300(MOQ 1)
Temp Range: -40.0°C to 125.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of LTC3109EGN#PBF?

Auto-polarity operation accepting input voltages as low as 30 mV from thermoelectric generators
Integrated power manager with LDO regulator mode for flexible output configuration
Hysteretic current-mode control for efficient ultralow input voltage energy harvesting
20-pin SSOP package enabling compact energy harvesting module designs

What is LTC3109EGN#PBF used for?

The LTC3109EGN is ideal for energy harvesting systems that convert waste heat from industrial equipment or human body temperature differentials into usable power. Its ability to start and operate from input voltages as low as 30 mV makes it well-suited for wireless sensor nodes powered by Peltier elements or small thermoelectric generators. It is also used in remote monitoring systems and IoT devices where battery replacement is impractical.

What are the specifications of LTC3109EGN#PBF?

Pbfree Code	No
Manufacturer Package Code	05-08-1641 (GN20)
YTEOL	10
Additional Feature	ALSO OPERATES AS LDO REGULATOR
Analog IC - Other Type	SWITCHING REGULATOR
Control Mode	CURRENT-MODE
Control Technique	HYSTERETIC CURRENT MODE
Input Voltage-Max	0.5V
Input Voltage-Min	0.05V
JESD-30 Code	R-PDSO-G20
JESD-609 Code	e3
Number of Functions	1
Output Current-Max	0.026A
Output Voltage-Max	5.1V
Output Voltage-Min	4.875V
Output Voltage-Nom	5V
Package Body Material	PLASTIC/EPOXY
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Surface Mount	YES
Switcher Configuration	BOOST
Technology	CMOS
Temperature Grade	AUTOMOTIVE
Terminal Finish	Matte Tin (Sn)
Terminal Form	GULL WING
Terminal Pitch	0.635mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30
## LTC3109EGN#PBF Alternates Showing results	Image
Package	Small Outline Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.39.00.01
Country of Origin	Malaysia

Where can I find the LTC3109EGN#PBF datasheet?

LTC3109EGN#PBF Datasheet Download

Official datasheet from Analog Devices

What are equivalent replacements for LTC3109EGN#PBF?

Compatible alternatives and drop-in replacements for LTC3109EGN#PBF:

C1608C0G1H102J080AA

suggested

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

What is the minimum input voltage the LTC3109EGN can operate from for energy harvesting?

The LTC3109EGN can start and operate from input voltages as low as 30 mV, making it one of the lowest threshold energy harvesting ICs available. Its auto-polarity feature also means it accepts either polarity from a thermoelectric generator without requiring external rectification, simplifying system design significantly and improving overall energy capture efficiency.

In which energy-harvesting applications does LTC3109EGN outperform conventional boost converters?

The LTC3109EGN excels in thermoelectric generator applications where source voltages range from 30 mV to 500 mV, conditions where standard boost converters fail to start. Applications like pipe temperature monitoring, industrial motor hot-spot sensing, and wearable health patches that harvest body heat at just 1°C to 5°C temperature differentials benefit from its hysteretic current-mode control and auto-polarity, delivering milliwatt-level power without an external battery.

What package does LTC3109EGN use and how does it compare to the smaller LTC3109 package options?

The LTC3109EGN uses a 20-pin SSOP package (GN20), which measures approximately 7.5mm x 5.3mm. This is larger than the 20-pin QFN variant but easier to hand-solder and inspect during prototyping. The SSOP package offers 0.635mm pitch between pins, adequate for standard PCB manufacturing, while the QFN version saves board space for production designs where 2-layer routing is constrained.

When should a designer choose LTC3109EGN over LTC3108 for a thermoelectric power supply?

Choose LTC3109EGN over LTC3108 when the thermoelectric generator polarity cannot be guaranteed, since the LTC3109 adds auto-polarity handling for input voltages from 30 mV to 500 mV. The LTC3108 requires a fixed positive input, so applications where generator orientation changes, or where assembly errors can flip polarity, are better served by LTC3109EGN's automatic polarity correction, reducing field failure risk in 8-channel sensor arrays or multi-node deployments.

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About Analog Devices

Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.

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AvailabilityIn Stock

Reference Price (USD)

From $5.4300

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$12.0800	$12.08
10+	$8.3010	$83.01
19+	$7.2000	$136.80
1000+	$5.4300	$5430.00

pcs

Unit price: $12.0800 · Total: $12.08

In Stock · 24h Response · Worldwide Shipping

Direct Contact

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

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Rajesh Patel

Procurement Manager, VoltEdge Energy, India

LTC3109EGN#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock

What are the key features of LTC3109EGN#PBF?

What is LTC3109EGN#PBF used for?

What are the specifications of LTC3109EGN#PBF?

Compliance & Regulatory

Where can I find the LTC3109EGN#PBF datasheet?

What are equivalent replacements for LTC3109EGN#PBF?

Frequently Asked Questions

What is the minimum input voltage the LTC3109EGN can operate from for energy harvesting?

In which energy-harvesting applications does LTC3109EGN outperform conventional boost converters?

What package does LTC3109EGN use and how does it compare to the smaller LTC3109 package options?

When should a designer choose LTC3109EGN over LTC3108 for a thermoelectric power supply?

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