規格
| 屬性 | 價值 |
| Package / Case | Tray |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3V |
| Voltage - Input (Max) | 42V |
| Voltage - Output (Min/Fixed) | 0.6V |
| Voltage - Output (Max) | 42V |
| Current - Output | 15A |
| Frequency - Switching | 200kHz ~ 2.2MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
概述
Description
LT8648S is a wide-input, synchronous buck-boost DC-DC regulator (Linear Technology/Analog Devices). It can regulate an output voltage that is either below or above the input voltage, using external inductor and feedback components, and it includes integrated high‑ and low‑side MOSFETs with current‑mode control. It’s suited for automotive, industrial, and battery-powered applications needing a single regulator across a wide Vin range.
LT8648SJV#PBF refers to a specific device variant/packaging:
- SJV is the package/variant code for this part.
- #PBF indicates Pb‑free (lead-free) assembly and packaging.
Key points:
- Wide Vin range, buck/boost operation, adjustable output via resistor network.
- Integrated MOSFETs, typical protections (OV/UV, current limit, thermal).
- Requires external inductor and feedback components; layout and compensation per datasheet.
For exact electrical specs and recommended circuit, see the LT8648S datasheet and product page.
LT8648SJV#PBF refers to a specific device variant/packaging:
- SJV is the package/variant code for this part.
- #PBF indicates Pb‑free (lead-free) assembly and packaging.
Key points:
- Wide Vin range, buck/boost operation, adjustable output via resistor network.
- Integrated MOSFETs, typical protections (OV/UV, current limit, thermal).
- Requires external inductor and feedback components; layout and compensation per datasheet.
For exact electrical specs and recommended circuit, see the LT8648S datasheet and product page.
Pinout
Pin count: 28 pins. Function: High-efficiency buck-boost DC-DC converter controller (synchronous regulator), typically used with external MOSFETs. The #PBF suffix indicates Pb-free packaging; SJV denotes the package/code type.
Manufacturer
Manufacturer: Analog Devices, Inc. (ADI).
Company type: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing integrated circuits. The LT prefix originally came from Linear Technology, which ADI acquired in 2017.
Company type: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing integrated circuits. The LT prefix originally came from Linear Technology, which ADI acquired in 2017.
Application
LT8648SJV#PBF is a wide-input buck-boost regulator. Typical application areas include:
- Automotive power management (12–24V with transient protection)
- Industrial DC-DC rails (24V/48V systems in rugged environments)
- Solar/energy harvesting and battery charging
- Telecom/Datacom power supplies (48V to lower rails)
- Backup/UPS and power-path management
- Portable equipment with variable or wide input sources
It’s suitable for any system needing efficient step-up/step-down regulation from a wide DC input.
- Automotive power management (12–24V with transient protection)
- Industrial DC-DC rails (24V/48V systems in rugged environments)
- Solar/energy harvesting and battery charging
- Telecom/Datacom power supplies (48V to lower rails)
- Backup/UPS and power-path management
- Portable equipment with variable or wide input sources
It’s suitable for any system needing efficient step-up/step-down regulation from a wide DC input.
Package
Lb: The LT8648SJV#PBF is offered in a Pb-free 28-pin QFN package (4×4 mm) with an exposed thermal pad.
