LTC3119EFE#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
LTC3119EFE#PBF is an 18 V, 5 A synchronous buck-boost DC/DC converter in an FE package. It accepts 2.5 V to 18 V input and delivers an adjustable output from 0.8 V to 18 V using current-mode PWM control. In-stock globally with fast worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- LTC3119EFE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $14.5523(MOQ 12)
- 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 LTC3119EFE#PBF?
- Wide input range of 2.5 V to 18 V enables seamless buck-boost operation across battery, automotive, and industrial supply rails
- 5 A continuous output current with synchronous rectification for high-efficiency power conversion
- Adjustable output from 0.8 V to 18 V via a single resistor divider giving maximum design flexibility
- Current-mode PWM control provides fast transient response and cycle-by-cycle overcurrent protection
What is LTC3119EFE#PBF used for?
LTC3119EFE#PBF suits portable and battery-powered equipment such as handheld instruments and IoT gateway nodes that require a stable rail regardless of whether the input is above or below the output. Its 2.5 V to 18 V input range covers single-cell Li-Ion through multi-cell packs and 12 V automotive lines. Industrial power conditioning systems that need an adjustable 0.8 V to 18 V regulated output from fluctuating bus voltages also benefit from its synchronous buck-boost topology.
What are the specifications of LTC3119EFE#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 |
| Temperature Grade | AUTOMOTIVE |
| 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 LTC3119EFE#PBF datasheet?
LTC3119EFE#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC3119EFE#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input and output voltage ranges does LTC3119EFE#PBF support for buck-boost designs?
LTC3119EFE#PBF accepts inputs from 2.5 V to 18 V and provides an adjustable output from 0.8 V to 18 V, allowing the converter to step up, step down, or pass through the supply voltage seamlessly. This range covers single-cell Li-Ion batteries near 3 V as well as 12 V automotive rails, making it versatile for portable, industrial, and telecom applications.
How much continuous output current can LTC3119EFE#PBF deliver, and what efficiency advantage does synchronous rectification provide?
The LTC3119EFE#PBF delivers up to 5 A continuous output current. Synchronous rectification replaces the external Schottky diode with an internal low-resistance switch, typically reducing conduction losses and improving overall efficiency by several percentage points compared to asynchronous topologies—particularly valuable in battery-powered designs where every milliwatt of standby loss matters.
Which control technique does LTC3119EFE#PBF use and how does it protect against overload conditions?
LTC3119EFE#PBF uses current-mode pulse-width modulation (PWM) control, which monitors the inductor current on every switching cycle. This cycle-by-cycle current limit clamps the peak switch current in under 100 ns, preventing damage during output short-circuits or sudden load steps, while the fast inner current loop also improves line and load transient response compared to voltage-mode control schemes.
For a 3.7 V single-cell Li-Ion system requiring a 5 V rail, is LTC3119EFE#PBF a suitable choice?
Yes. LTC3119EFE#PBF operates down to 2.5 V input and can boost a discharged Li-Ion cell at 3.0 V to a regulated 5 V output at up to 5 A. As the battery charges above 5 V, the converter automatically transitions to buck mode without a discontinuous glitch, ensuring the 5 V rail remains stable throughout the entire battery discharge curve from approximately 4.2 V fully charged down to the 2.5 V cutoff.
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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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 12+ | $16.7911 | $201.49 |
| 16+ | $16.2314 | $259.70 |
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