LT3782AEUFD#PBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
LT3782AEUFD#PBF is a current-mode PWM boost switching controller from Analog Devices supporting 6 V to 40 V input range, designed for two-phase interleaved boost conversion, housed in a 28-pin QFN package.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- LT3782AEUFD#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.0500(MOQ 1)
- Temp Range
- ?°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT3782AEUFD#PBF?
- Two-phase interleaved current-mode PWM boost controller reduces input and output ripple current at 6 V to 40 V input
- Wide 6 V to 40 V input range covers automotive 12 V, 24 V, and 48 V bus standards in a single design
- Accurate current sensing and cycle-by-cycle current limit protects inductors and switches in high-power boost stages
- 28-pin QFN package integrates gate drive, oscillator, and soft-start reducing external component count
What is LT3782AEUFD#PBF used for?
The LT3782AEUFD#PBF targets high-power boost converter designs in automotive and industrial systems where a two-phase interleaved topology is needed to reduce ripple at input and output without increasing capacitor count. It is well-suited for 12 V to 48 V pre-boost stages feeding inverter rails in electric vehicle auxiliary power units and industrial DC bus systems. Telecom and datacom equipment designers also use it for high-efficiency 48 V boost converters supplying PoE or distributed power buses.
What are the specifications of LT3782AEUFD#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1712 |
| YTEOL | 10 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 40V |
| Input Voltage-Min | 6V |
| Input Voltage-Nom | 13V |
| JESD-30 Code | R-PQCC-N28 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 4A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 16mA |
| Surface Mount | YES |
| Switcher Configuration | PHASE-SHIFT |
| Switching Frequency-Max | 533kHz |
| Technology | BIPOLAR |
| Temperature Grade | OTHER |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat No-Lead |
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 | Malaysia |
Where can I find the LT3782AEUFD#PBF datasheet?
LT3782AEUFD#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT3782AEUFD#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does LT3782AEUFD#PBF support and how does that cover automotive 12 V and 48 V systems?
LT3782AEUFD#PBF operates with a 6 V to 40 V input, covering both 12 V automotive batteries and 24 V industrial bus applications directly. For 48 V systems, additional input attenuation or a front-end stage is needed, but the 40 V maximum handles transient spikes on 24 V and nominal 36 V bus rails common in mild-hybrid vehicles.
How does the two-phase interleaved topology of LT3782AEUFD#PBF reduce filtering requirements versus a single-phase boost?
In a two-phase interleaved boost converter, each phase switches 180 degrees out of phase with the other, so input and output ripple currents partially cancel. This reduces peak-to-peak ripple current by up to 50% at the crossover duty cycle, allowing the designer to use smaller input and output capacitors while still meeting EMI and voltage ripple specifications.
What control mode does LT3782AEUFD#PBF use and what protection features are built in?
LT3782AEUFD#PBF uses peak current-mode PWM control, which provides inherent cycle-by-cycle current limiting that protects the external switches and inductors from overcurrent during load transients or start-up. It also includes soft-start, undervoltage lockout at approximately 6 V, and programmable slope compensation for duty cycles above 50%.
For a 12 V to 28 V boost converter at 10 A output, what switching frequency range does LT3782AEUFD#PBF support?
LT3782AEUFD#PBF supports an adjustable switching frequency set by an external resistor, typically ranging from 100 kHz to 500 kHz per phase. At 200 kHz per phase in two-phase operation, the effective ripple frequency at the output is 400 kHz, enabling a compact output filter for a 12 V input to 28 V output, 10 A boost stage in industrial power supplies.
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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 |
|---|---|---|
| 1+ | $8.5300 | $8.53 |
| 19+ | $8.0200 | $152.38 |
| 1000+ | $6.0500 | $6050.00 |
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