LT8646SEV#PBF
| Parameters | |
|---|---|
| Series | Silent Switcher®2 |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 32-TFQFN Exposed Pad |
| Mfr | Analog Devices Inc. |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Voltage - Input (Max) | 65V |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Current - Output | 8A |
| Supplier Device Package | 32-LQFN (6x4) |
| Output Configuration | Positive |
| Function | Step-Down |
| Topology | Buck |
| Frequency - Switching | 200kHz ~ 2.2MHz |
| Synchronous Rectifier | Yes |
| Voltage - Output (Min/Fixed) | 0.97V |
| Voltage - Output (Max) | 12V |
| Voltage - Input (Min) | 3.4V |
| Package | Tray |
| Product Status | Active |
| Base Product Number | LT8646 |
| REACH Status | REACH Unaffected |
| Standard Package | 490 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
LT8646SEV#PBF synchronous step-down switching regulator 0.97V 1 Output 8A
The LT8646SEV#PBF is a high-efficiency, monolithic synchronous step-down (buck) switching regulator from Analog Devices, renowned for its exceptional low noise and high switching frequency performance. It is specifically designed to power noise-sensitive RF, precision analog, and high-speed digital loads. Operating from an input voltage range of 3.4V to 65V, it can deliver up to 15A of continuous output current with a Silent Switcher® 2 architecture that minimizes EMI emissions without compromising efficiency. This regulator features a fast minimum on-time and operates at a switching frequency of up to 3 MHz, enabling the use of small external components and creating compact, high-performance power solutions for demanding applications.
This device employs Silent Switcher 2 technology with integrated high-frequency bypass capacitors to drastically reduce EMI, allowing it to pass CISPR 25 Class 5 peak EMI limits. It offers a programmable switching frequency from 200 kHz to 3 MHz, which can also be synchronized to an external clock. The regulator provides a wide output voltage range from 0.6V to 15V with a ±1% reference accuracy. Its unique active transient response control enables rapid recovery from load steps. Key features include spread spectrum frequency modulation for EMI reduction, output voltage tracking, and comprehensive protection (overcurrent, overtemperature, input/output overvoltage).
Alternative buck regulator Models
● Texas Instruments TPS548D22: A 100A synchronous step-down converter with a wide input range and advanced telemetry features, targeting high-current, high-density point-of-load applications.
● Infineon TDA38725: A high-efficiency, high-frequency synchronous buck converter with integrated MOSFETs and advanced control features for demanding industrial and automotive systems.
● Monolithic Power Systems MPQ8633: A high-voltage, high-current synchronous buck converter with integrated FETs and a wide operating frequency range for compact power designs.
