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Спецификации
| Атрибут | Ценность |
| Package / Case | Tray |
| Series | Automotive, AEC-Q100 |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3.4V |
| Voltage - Input (Max) | 65V |
| Voltage - Output (Min/Fixed) | 0.97V |
| Voltage - Output (Max) | 12V |
| Current - Output | 8A |
| Frequency - Switching | 200kHz ~ 2.2MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Обзор
Description
LT8646SIV#WPBF is Analog Devices’ LT8646 in the WPBF Pb-free package. The LT8646 is a wide-input, high-efficiency DC-DC converter/controller with integrated switching FETs, intended for automotive and industrial power supplies. It regulates an output voltage via external feedback resistors, supports programmable switching frequency, and includes protection features such as undervoltage lockout, overcurrent protection, and thermal shutdown. Typical use cases include converting a broad input (eg, automotive or battery) to a stable system rail in a compact layout.
Package note: WPBF denotes the specific Pb-free package and footprint; consult the datasheet for exact pinout, thermal characteristics, and land pattern.
For exact electrical specs, required peripheral components, and evaluation boards, refer to the LT8646 data sheet on Analog Devices’ website.
Package note: WPBF denotes the specific Pb-free package and footprint; consult the datasheet for exact pinout, thermal characteristics, and land pattern.
For exact electrical specs, required peripheral components, and evaluation boards, refer to the LT8646 data sheet on Analog Devices’ website.
Equivalent
Direct equivalents depend on your specs. I don’t have real‑time cross-reference data. To find substitutes, use Analog Devices’ cross-reference for LT8646SIV#WPBF and distributor catalogs (DigiKey/Mouser). Look for dual-channel, synchronous buck-boost controllers with integrated MOSFETs in the same WPBF package and similar voltage/current specs. Compare input range, outputs, current capability, switching frequency, and features. Share your required specs and I can suggest the closest candidates.
Pinout
- Pin count/package: 28 pins in a 4×4 mm Pb-free QFN (WPBF) package.
- Function: Dual, synchronous buck/boost DC-DC converter/controller with integrated FETs (two channels) for wide-input-range power conversion with current‑mode control.
- Function: Dual, synchronous buck/boost DC-DC converter/controller with integrated FETs (two channels) for wide-input-range power conversion with current‑mode control.
Manufacturer
Manufacturer: Analog Devices, Inc. (the Linear Technology product line now part of Analog Devices).
What kind of company: A multinational semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits, including power-management ICs for automotive, industrial, and consumer applications.
What kind of company: A multinational semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits, including power-management ICs for automotive, industrial, and consumer applications.
Application
Applications of LT8646SIV#WPBF:
- Automotive and rugged industrial DC-DC regulation (wide input, high efficiency)
- Point‑of‑load regulators for telecom, networking, and data‑center gear
- Battery‑powered and portable devices needing wide Vin and fast transient response
- Solar/battery charging front ends and energy‑management stages
- Multi‑rail power systems and compact, high‑efficiency DC‑DC conversion with load sharing/hot‑swap options
(Concise, non‑exhaustive list; suitable for harsh environments and compact power solutions.)
- Automotive and rugged industrial DC-DC regulation (wide input, high efficiency)
- Point‑of‑load regulators for telecom, networking, and data‑center gear
- Battery‑powered and portable devices needing wide Vin and fast transient response
- Solar/battery charging front ends and energy‑management stages
- Multi‑rail power systems and compact, high‑efficiency DC‑DC conversion with load sharing/hot‑swap options
(Concise, non‑exhaustive list; suitable for harsh environments and compact power solutions.)
Package
It's in a Pb-free 32‑lead QFN package (roughly 4 mm × 4 mm).
