LTC3118HFE#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The LTC3118HFE#PBF is an 18 V, 2 A buck-boost DC/DC converter from Analog Devices with low-loss dual input PowerPath and current-mode PWM control. It operates from 2.2 V to 18 V input and regulates output from 2 V to 18 V with seamless buck-boost transitions. Available in stock worldwide with competitive pricing.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- LTC3118HFE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $9.3500(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC3118HFE#PBF?
- Dual input PowerPath automatically selects the higher-priority input (USB or auxiliary) with low-loss switching for uninterrupted power delivery
- Wide 2.2 V to 18 V input and 2 V to 18 V output range with 2A continuous current supports diverse battery and adapter-powered applications
- Current-mode PWM control provides fast transient response and inherent cycle-by-cycle current limiting for robust overload protection
What is LTC3118HFE#PBF used for?
The LTC3118HFE#PBF is designed for industrial handheld instruments, ruggedized field devices, and portable test equipment powered from dual input sources such as a USB 5 V bus and a wall adapter where uninterrupted power delivery is required. Its wide 2.2 V to 18 V input range accommodates lead-acid batteries, multi-cell Li-Ion packs, and automotive 12 V rails in the same design. The dual PowerPath architecture also suits backup power systems where automatic failover between a primary adapter and a battery must occur without output glitch.
What are the specifications of LTC3118HFE#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1663 (EB) |
| YTEOL | 10 |
| Additional Feature | OUTPUT VOLTAGE RANGE FROM 2 V 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 | 2.2V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 1200kHz |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| 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 LTC3118HFE#PBF datasheet?
LTC3118HFE#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC3118HFE#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the dual input PowerPath feature of the LTC3118HFE#PBF work in a USB plus battery backup design?
The LTC3118HFE#PBF's dual input PowerPath monitors two input sources and automatically connects the higher-priority or higher-voltage input to the converter with low-loss MOSFET switching, delivering uninterrupted 2A output without a dropout glitch when sources switch. In a USB plus battery design, the device draws from the 5 V USB port when connected and automatically transitions to the battery — which can range from 2.2 V to 18 V — when USB is removed, maintaining a regulated output throughout.
Which output voltage range does the LTC3118HFE#PBF support and how does current-mode control improve transient response?
The LTC3118HFE#PBF provides an adjustable output from 2 V to 18 V at up to 2A, covering a wide range of regulated rails for mixed-voltage board designs. Current-mode PWM control adds an inner current feedback loop that responds to load transients within a single switching cycle, significantly reducing output voltage deviation compared to voltage-mode control. This makes the converter suitable for microprocessor core rails and analog reference supplies where fast load steps of hundreds of milliamps must be absorbed with minimal overshoot.
When is the LTC3118HFE#PBF a better choice than LTC3113 for a battery-powered industrial device operating from a wide input range?
The LTC3118HFE#PBF is the better choice when the design requires up to 18 V input (versus 5.5 V for LTC3113), a regulated output above 5.5 V, or a dual-input PowerPath for automatic source failover. For example, an industrial device powered from either a 12 V SLA battery or a 7.4 V Li-Ion pack, with a regulated 12 V output rail, can only use LTC3118HFE#PBF given its 18 V input ceiling and 2A output, while LTC3113 is limited to 5.5 V input and suits only single-cell Li-Ion applications.
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Why Buy from FindMyChip
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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|---|---|---|
| 1+ | $13.6400 | $13.64 |
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