LT8646 vs LT8645SEV#PBF Comparison
Detailed side-by-side comparison of LT8646 by Analog Devices and LT8645SEV#PBF by Analog Devices. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Analog Devices
LT8645SEV#PBF - 65V 8A Silent Switcher Buck Regulator | Analog Devices
LT8645SEV#PBF ✓ ActiveSpecification Comparison
| Parameter | LT8646 | LT8645SEV#PBF |
|---|---|---|
| Brand | Analog Devices | Analog Devices |
| Category | DC-DC Converters | DC-DC Converters |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.18 | $5.18 |
| Topology | Synchronous Step-Down (Buck) | Synchronous Buck (Step-Down) |
| Input Voltage Range | 3 V to 65 V (65 V abs max) | 3.4 V to 65 V |
| Output Voltage Range | 0.97 V to VIN (adjustable) | 0.97 V to 25 V (adjustable) |
| Maximum Output Current | 8 A continuous | 8 A |
| Quiescent Current | 2.5 µA (typical at no load) | Ultra-low (see datasheet for Iq) |
| Switching Frequency | 200 kHz to 3 MHz (programmable, synchronisable) | — |
| Architecture | Silent Switcher 2 with internal bypass capacitors | Silent Switcher 2nd generation |
| Efficiency | >95 % at 12V to 3.3V/8A | > 95% peak |
| Internal MOSFETs | Yes (high-side and low-side integrated) | — |
| Spread Spectrum | Yes (selectable) | — |
| Soft-Start | Internal, programmable | — |
| Output Over-Voltage Protection | Yes (latch-off) | — |
| Thermal Shutdown | Yes | — |
| Operating Junction Temperature | -40 °C to +125 °C | — |
| Package | 32-TFQFN Exposed Pad (5 mm × 6 mm) | 32-pin LQFN EP (5 mm x 6 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant | Compliant (#PBF suffix) |
| Number of Outputs | — | 1 |
| Switching Frequency Range | — | 200 kHz to 2.2 MHz |
| Internal Switches | — | Yes (top + bottom N-channel MOSFETs) |
| Operating Temperature Range | — | -40 C to +125 C (automotive grade) |
| MSL Level | — | 1 |