LTC3119MPFE#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock

Name: LTC3119MPFE#PBF
Brand: Analog Devices
SKU: LTC3119MPFE#PBF
Availability: InStock

The LTC3119 is a high-efficiency 5A buck-boost DC/DC converter operating from 2.5V to 18V input with adjustable output from 0.8V to 18V in a compact package. It uses current-mode PWM control for stable regulation across step-down and step-up conditions, ideal for multi-chemistry battery and automotive power systems. Available from authorized distributors with worldwide shipping.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

LTC3119MPFE#PBFSmall Outline Packages

Quick Facts

Manufacturer: Analog Devices
Package: Small Outline Packages
Pin Count: 28
Lifecycle: ACTIVE
Datasheet: LTC3119MPFE#PBF Datasheet PDF
Category: Integrated Circuit
Price: From $26.9400(MOQ 1)
Temp Range: -55.0°C to 150.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of LTC3119MPFE#PBF?

5A continuous output current with 2.5V to 18V input range
Adjustable output voltage from 0.8V to 18V covering both step-up and step-down
Current-mode PWM control for fast transient response and inherent current limiting
Seamless buck-boost transition for battery-powered systems with wide input variation
Supports automotive 12V bus and multi-chemistry battery pack applications

What is LTC3119MPFE#PBF used for?

The LTC3119 is designed for portable and automotive power conversion systems where the input voltage can be above or below the desired output, such as Li-ion battery packs ranging from 2.5V to 18V powering a fixed 5V or 12V rail. Its 5A output and seamless buck-boost operation make it a strong choice for industrial handheld devices, medical equipment, and automotive 12V accessory regulators requiring continuous power through wide input transients.

What are the specifications of LTC3119MPFE#PBF?

Pbfree Code	No
Manufacturer Package Code	05-08-1663 (EA)
YTEOL	10
Additional Feature	ADJUSTABLE OUPUT MODE FROM 0.8 TO 18 V
Analog IC - Other Type	SWITCHING REGULATOR
Control Mode	CURRENT-MODE
Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	18V
Input Voltage-Min	2.5V
Input Voltage-Nom	12V
JESD-30 Code	R-PDSO-G28
JESD-609 Code	e3
Number of Functions	1
Output Current-Max	5A
Output Voltage-Max	18V
Output Voltage-Min	0.8V
Output Voltage-Nom	5V
Package Body Material	PLASTIC/EPOXY
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel)	260
Surface Mount	YES
Switcher Configuration	BUCK-BOOST
Switching Frequency-Max	2000kHz
Technology	CMOS
Terminal Finish	Matte Tin (Sn) - annealed
Terminal Form	GULL WING
Terminal Pitch	0.65mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30
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	Thailand

Where can I find the LTC3119MPFE#PBF datasheet?

LTC3119MPFE#PBF Datasheet Download

Official datasheet from Analog Devices

What are equivalent replacements for LTC3119MPFE#PBF?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

How does LTC3119's buck-boost architecture handle the transition when input voltage equals output voltage?

The LTC3119 uses a 4-switch buck-boost topology with current-mode PWM control that transitions seamlessly between buck, boost, and buck-boost modes as the 2.5V to 18V input crosses the programmed output voltage. Unlike some converters that exhibit output glitches or discontinuities at the crossover point, the LTC3119 maintains stable regulation through the transition, which is critical for battery-powered systems where the cell voltage sweeps through the output set-point during discharge.

What is the maximum output current the LTC3119MPFE#PBF can deliver, and what thermal considerations apply?

The LTC3119 delivers up to 5A of continuous output current. At 5A output, thermal management depends on the input-to-output voltage conversion ratio and efficiency, typically requiring adequate copper area or an external heatsink pad on the PCB. At 12V input to 5V output, efficiency can exceed 90%, significantly reducing heat dissipation compared to a linear regulator delivering the same 5A load.

For a 12V automotive accessory rail design, why choose LTC3119 over a fixed-output buck converter?

The LTC3119's adjustable output from 0.8V to 18V allows a single design to power multiple output voltages by changing just the feedback resistor values, reducing the number of distinct converter ICs in the BOM. In automotive applications where the 12V bus can range from 8V during cold-crank to over 16V during load dump, the LTC3119's 2.5V to 18V input range ensures continuous regulation through these transients without needing additional protection circuitry.

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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 $26.9400

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$41.6600	$41.66
10+	$31.0390	$310.39
1000+	$26.9400	$26940.00

pcs

Unit price: $41.6600 · Total: $41.66

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”

Rajesh Patel

Procurement Manager, VoltEdge Energy, India

LTC3119MPFE#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock

What are the key features of LTC3119MPFE#PBF?

What is LTC3119MPFE#PBF used for?

What are the specifications of LTC3119MPFE#PBF?

Compliance & Regulatory

Where can I find the LTC3119MPFE#PBF datasheet?

What are equivalent replacements for LTC3119MPFE#PBF?

Frequently Asked Questions

How does LTC3119's buck-boost architecture handle the transition when input voltage equals output voltage?

What is the maximum output current the LTC3119MPFE#PBF can deliver, and what thermal considerations apply?

For a 12V automotive accessory rail design, why choose LTC3119 over a fixed-output buck converter?

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