LT3790HFE#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LT3790HFE#PBF is a high-voltage synchronous 4-switch buck-boost controller supporting input voltages from 4.7V to 60V and output voltages from 0V to 60V. It features current-mode PWM control with seamless transitions between buck and boost modes. Available in a compact package for efficient power conversion.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 38
- Lifecycle
- ACTIVE
- Datasheet
- LT3790HFE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $8.1875(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 input voltage range of 4.7V to 60V with output adjustable from 0V to 60V for versatile power conversion
- Synchronous 4-switch buck-boost topology enables high-efficiency conversion with low quiescent current
- Current-mode PWM control with seamless buck-to-boost transition eliminates output glitches during mode changes
- Supports 60V output regulation suitable for LED drivers and battery charging applications
Applications
The LT3790HFE#PBF is ideal for automotive LED lighting systems requiring wide-range input (4.7V to 60V) from vehicle battery rails and stable 60V output regulation. It is also used in industrial power supplies, battery chargers, and telecom equipment where seamless buck-boost conversion is required across varying input conditions.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1772 |
| YTEOL | 10 |
| Additional Feature | OUTPUT VOLTAGE RANGE FROM 1.2 VOLT TO 60 VOLT AND 0 VOLT TO 60 VOLT |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 60V |
| Input Voltage-Min | 4.7V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G38 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Voltage-Max | 60V |
| 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 | 735kHz |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the LT3790HFE#PBF support for automotive applications?
The LT3790HFE#PBF supports an input voltage range of 4.7V to 60V, making it well-suited for automotive battery systems that fluctuate between 6V and 60V during cold-crank, normal operation, and load-dump conditions. This wide range allows reliable operation across diverse vehicle power environments.
How does the LT3790HFE#PBF achieve efficient LED driver designs with output voltage above the input?
Using a synchronous 4-switch buck-boost topology, the LT3790HFE#PBF can regulate outputs from 0V to 60V regardless of whether the input is higher or lower than the output. This enables high-efficiency LED driver designs where the LED string voltage (e.g., 40V to 55V) may exceed the 12V or 24V input rail by operating seamlessly in boost mode.
When should the LT3790HFE#PBF be selected over a simple boost or buck converter?
The LT3790HFE#PBF is the preferred choice when the input voltage range overlaps with the required output voltage, such as in 24V bus systems needing 20V to 40V output. Simple single-mode converters cannot handle this overlap, while the 4-switch topology maintains stable regulation through buck, buck-boost, and boost modes without output discontinuities.
What control method does the LT3790HFE#PBF use and how does it affect transient response?
The LT3790HFE#PBF uses current-mode PWM control, which provides inherent cycle-by-cycle current limiting and fast transient response. This technique improves loop stability and reduces output voltage overshoot during load steps, allowing designers to use smaller output capacitors while maintaining tight regulation within ±2% across the 0V to 60V output range.
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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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| 19+ | $11.2900 | $214.51 |
| 100+ | $8.2070 | $820.70 |
| 250+ | $8.1875 | $2046.88 |
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