Representative package image. See datasheet for exact dimensions.LT8648SJV#PBF
42 V, 15 A synchronous step-down Silent Switcher 2 regulator, 200 kHz to 2.2 MHz, -40 °C to 150 °C (J grade), 36-lead LQFN
| Manufacturer | Analog Devices |
|---|---|
| Category | Voltage Regulators |
| Series | LT8648S |
| Package | 36-lead LQFN (7 mm x 4 mm x 0.94 mm, QFN footprint) |
| Lifecycle | Recommended for New Designs (Analog Devices) |
| Datasheet | LT8648SJV#PBF PDF |
| Availability |
- Free DHL / FedEx / UPS shipping, no fixed MOQ
- Real part photos + date code with every quote
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LT8648SJV#PBF Datasheet PDF
Official Analog Devices datasheet. Quotes include unit price, available quantity, lead time and photos of the actual parts with the date code.
LT8648SJV#PBF Pinout & Package
LT8648SJV#PBF is supplied in a 36-lead LQFN (7 mm x 4 mm x 0.94 mm, QFN footprint) package. The pin table below is taken from the Analog Devices datasheet (open LT8648SJV#PBF datasheet PDF).
| Pin | Name | Function |
|---|---|---|
| 1 | BIAS | Internal regulator supply; tie to VOUT for 3.3 V to 25 V outputs |
| 2 | INTVCC | Internal 3.4 V regulator bypass (1 µF min) |
| 3 | BST | Top switch drive; leave floating |
| 4-12 | SW | Switch outputs; tie together to the inductor |
| 13-18, 23, 24, 37-42 | GND | Ground; exposed pads 37-42 |
| 19-21, 26-28 | VIN | Input supply; bypass with 10 µF or more |
| 22, 25 | NC | No connect |
| 29 | EN/UV | Enable / undervoltage threshold (0.98 V rising) |
| 30 | RT | Frequency set resistor to ground |
| 31 | CLKOUT | Clock output, 180° out of phase |
| 32 | SYNC/MODE | Burst / forced continuous / spread spectrum / external sync |
| 33 | PG | Power good, open drain |
| 34 | VC | Error amplifier output, loop compensation |
| 35 | SS | Soft-start and tracking |
| 36 | FB | Feedback, regulates to 0.6 V |
Source: Analog Devices LT8648S/LT8648SP datasheet Rev. E, Pin Functions. Confirm against the latest datasheet revision before layout.
LT8648SJV#PBF Overview
LT8648SJV#PBF is the RoHS (PBF) J-grade orderable of the LT8648S, a 42 V, 15 A synchronous step-down regulator using Analog Devices' second-generation Silent Switcher architecture. Input and boost capacitors are integrated in the package to keep the fast current loops small, so the advertised low EMI is easier to reach on a real PCB. It switches from 200 kHz to 2.2 MHz with a 25 ns minimum on-time, offers Burst Mode, forced continuous and spread spectrum modes, external VC compensation for current sharing between paralleled parts, a CLKOUT pin, soft-start and power good. The J grade is specified for -40 °C to 150 °C junction temperature. Analog Devices lists the LT8648S as Recommended for New Designs. Note: the '#' in the order code is part of ADI's naming; the page URL spells it as '-sharp'.
Key Features
- 3 V to 42 V input, 15 A output
- Silent Switcher 2 with internal bypass capacitors; optional spread spectrum
- Up to 95.5% efficiency at 1 MHz (12 V in, 5 V out)
- 25 ns minimum on-time; 200 kHz to 2.2 MHz, synchronizable
- 100 µA IQ regulating 12 V to 5 V in Burst Mode; output ripple under 10 mVp-p
- Two devices can be paralleled for 30 A (datasheet Figure 6)
Applications
- Automotive supplies
- Industrial supplies
- General-purpose step-down conversion
LT8648SJV#PBF Specifications
| Part Number | LT8648SJV#PBF |
|---|---|
| Manufacturer | Analog Devices |
| Category | Voltage Regulators |
| Series | LT8648S |
| Package / Case | 36-lead LQFN (7 mm x 4 mm x 0.94 mm, QFN footprint) |
| Input voltage | 3 V to 42 V |
| Output current | 15 A |
| Switching frequency | 200 kHz to 2.2 MHz, adjustable and synchronizable |
| Feedback reference | 0.6 V |
| Minimum on-time | 25 ns typ |
| Quiescent current | 100 µA regulating 12 V in to 5 V out (Burst Mode) |
| Efficiency | Up to 95.5% at 1 MHz, 12 V in to 5 V out |
| Operating junction temperature | -40 °C to 150 °C (J grade) |
| Qualification | AEC-Q100 qualified (per datasheet) |
| Lifecycle Status | Recommended for New Designs (Analog Devices) |
Specifications are taken from the manufacturer's public datasheet and are for reference. Confirm against the latest datasheet before design-in.
LT8648SJV#PBF Alternatives & Equivalents
Alternatives are for reference. Verify pinout, electrical characteristics and firmware against each datasheet before substituting.
LT8648SJV#PBF Guides & Comparisons
More engineering notes on the PartVane blog.
LT8648SJV#PBF FAQ
Who manufactures LT8648SJV#PBF?
LT8648SJV#PBF is manufactured by Analog Devices and belongs to the LT8648S series. It is listed under Voltage Regulators.
What is LT8648SJV#PBF?
LT8648SJV#PBF: 42 V, 15 A synchronous step-down Silent Switcher 2 regulator, 200 kHz to 2.2 MHz, -40 °C to 150 °C (J grade), 36-lead LQFN.
What package does LT8648SJV#PBF come in?
LT8648SJV#PBF comes in a 36-lead LQFN (7 mm x 4 mm x 0.94 mm, QFN footprint) package.
Where can I download the LT8648SJV#PBF datasheet and pinout?
The Analog Devices datasheet for LT8648SJV#PBF is linked in the Datasheet section of this page (https://www.analog.com/media/en/technical-documentation/data-sheets/lt8648s.pdf). The pin configuration and package drawing are in that datasheet.
Is LT8648SJV#PBF still in production?
The manufacturer lists LT8648SJV#PBF as Recommended for New Designs (Analog Devices).
What is the equivalent or alternative to LT8648SJV#PBF?
Documented alternatives to LT8648SJV#PBF: LT8648SEV#PBF (Analog Devices, E grade of the same LQFN device, -40 °C to 125 °C junction); LT8648SPJV#PBF (Analog Devices, LT8648SP: exposed-back package for heat sink attach); LT8645S (Analog Devices, 65 V, 8 A Silent Switcher 2 (lower current, higher input)); LT8640S (Analog Devices, 42 V, 6 A Silent Switcher 2 in 4 mm x 4 mm LQFN-24). Always verify pinout and electrical characteristics against each datasheet before substituting.
Do you have LT8648SJV#PBF in stock?
Yes. PartVane holds stock of LT8648SJV#PBF. Send the quantity you need and we will confirm the available quantity, date code and delivery in the quotation.
How do I get a price and availability for LT8648SJV#PBF?
Message the owner on WhatsApp (+86 139 3944 9974), use the quote form on this page or email sales@partvane.com with the quantity and target delivery date. On WhatsApp we quote within 2 hours during business hours (Mon–Sat, 09:00–18:00 China time (UTC+8)); every RFQ is answered within 24 hours. The quotation includes unit price, availability, lead time and photos of the actual parts with the date code / lot label.
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