LT8390HFE#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LT8390HFE#PBF is a 60 V synchronous 4-switch buck-boost controller with spread spectrum and current-mode control. Accepts 4 V to 60 V input and delivers regulated output across a wide voltage range for demanding power applications. Available in 28-pin SSOP package from stock worldwide.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- LT8390HFE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $7.2500(MOQ 19)
- Temp Range
- -40.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT8390HFE#PBF?
- 4-switch synchronous buck-boost topology supports input voltages from 4 V to 60 V, enabling seamless operation across automotive and industrial rails
- Spread spectrum frequency dithering reduces EMI emissions, simplifying compliance with CISPR 25 and other radiated-emission standards
- Current-mode control architecture provides fast load transient response and inherent cycle-by-cycle current limiting for robust power management
What is LT8390HFE#PBF used for?
The LT8390HFE#PBF is designed for automotive infotainment, industrial equipment, and telecom power supplies where the input rail can swing above and below the desired output voltage. Its 4-switch topology maintains continuous regulation during wide input transients, making it ideal for battery-backed 12 V or 24 V bus systems. The spread spectrum feature benefits designs in noise-sensitive environments such as RF front-ends and precision analog acquisition systems.
What are the specifications of LT8390HFE#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1663 (EB) |
| YTEOL | 10 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Input Voltage-Max | 60V |
| Input Voltage-Min | 4V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Voltage-Max | 60V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP28,.25 |
| 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 | 630kHz |
| Technology | BIPOLAR |
| 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 LT8390HFE#PBF datasheet?
LT8390HFE#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT8390HFE#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the LT8390HFE#PBF support, and how does the 4-switch topology handle transitions between buck and boost modes?
The LT8390HFE#PBF accepts inputs from 4 V to 60 V and uses a 4-switch synchronous topology that transitions seamlessly through buck, pass-through, and boost modes. This prevents output glitches when a 12 V automotive battery dips below the regulated output during cranking events, maintaining regulation without switching transients.
How does spread spectrum in the LT8390HFE#PBF benefit automotive EMI compliance testing?
The built-in spread spectrum frequency dithering spreads switching noise energy over a wider bandwidth, reducing peak radiated emissions by up to 10 dB compared to fixed-frequency converters. This simplifies passing CISPR 25 Class 5 limits in automotive infotainment modules and reduces the size and cost of EMI filter inductors and capacitors needed on the input and output.
Which package does the LT8390HFE#PBF use, and what pin count does it have?
The LT8390HFE#PBF is housed in a 28-pin SSOP (Small Shrink Outline Package) with an exposed pad for thermal dissipation. The 28-pin count provides enough I/O for four gate drive outputs, feedback, compensation, synchronization, and fault signals while keeping the PCB footprint compact for space-constrained board designs.
For a 48 V to 12 V industrial DC-DC design, how does the LT8390HFE#PBF compare to a non-synchronous buck controller?
At a 48 V input converting to 12 V at 5 A, synchronous rectification in the LT8390HFE#PBF eliminates diode conduction losses, improving efficiency by approximately 3 to 5 percentage points over a non-synchronous controller using a Schottky diode. The current-mode control also allows tighter output regulation under 50 mV load steps without large output capacitors.
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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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $9.6100 | $182.59 |
| 100+ | $7.9371 | $793.71 |
| 250+ | $7.8750 | $1968.75 |
| 1000+ | $7.2500 | $7250.00 |
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