LT8390HFE#TRPBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LT8390HFE is a synchronous 4-switch buck-boost controller supporting 4 V to 60 V input, current-mode control, and spread-spectrum operation. Available in 28-lead QFN package with worldwide stock and shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- LT8390HFE#TRPBF 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
Key Features
- Wide 4 V to 60 V input range with 4-switch synchronous buck-boost topology for seamless input-to-output voltage transition
- Integrated spread-spectrum frequency modulation for reduced EMI in noise-sensitive automotive and industrial applications
- Current-mode control with programmable switching frequency up to 1 MHz enabling compact magnetics and fast transient response
Applications
The LT8390HFE is ideal for automotive and industrial power systems requiring a single DC-DC controller that handles input voltages both above and below the output voltage without interruption. Its 4 V to 60 V input range covers 12 V and 48 V battery systems, making it suitable for electric vehicle accessories, solar MPPT chargers, and industrial DIN-rail power supplies. The integrated spread-spectrum switching minimizes EMI, helping designs pass CISPR 25 and EN 55032 radiated emissions limits.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1663 (EB) |
| YTEOL | 9 |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the LT8390HFE support and which battery systems does it cover?
The LT8390HFE accepts input voltages from 4 V to 60 V, covering standard 12 V automotive batteries, 24 V industrial rail supplies, and 48 V mild-hybrid vehicle buses. This wide range allows a single controller design to operate across deep battery discharge and load-dump transients without requiring an additional pre-regulator stage.
How does the LT8390HFE's spread-spectrum feature help pass EMI compliance tests?
The LT8390HFE uses programmable spread-spectrum frequency dithering to disperse switching harmonics across a wider bandwidth, reducing peak radiated and conducted emissions by typically 10 dB to 15 dB. This feature directly assists in meeting CISPR 25 Class 5 automotive EMI limits and EN 55032 industrial standards without requiring large additional EMI filters.
When would an engineer choose the LT8390HFE over a simpler boost or buck converter?
Engineers select the LT8390HFE when the input voltage can be both higher and lower than the required output voltage, a scenario common in battery-powered systems where a 24 V output must be maintained from a 12 V to 60 V input. The 4-switch synchronous topology achieves greater than 95% efficiency in both buck and boost modes, outperforming non-synchronous alternatives that waste power in the transition region between modes.
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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.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $9.6100 | $182.59 |
| 250+ | $7.8750 | $1968.75 |
| 1000+ | $7.2500 | $7250.00 |
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