LT8645SHV-2#PBF vs LT8640EUDC#TRPBF Comparison
Detailed side-by-side comparison of LT8645SHV-2#PBF by Analog Devices and LT8640EUDC#TRPBF 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
LT8645SHV-2#PBF - 65V 8A Silent Switcher Buck | Analog Devices
LT8645SHV-2#PBF ✓ Active
Specification Comparison
| Parameter | LT8645SHV-2#PBF | LT8640EUDC#TRPBF |
|---|---|---|
| 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) | $8.10 | $5.48 |
| Topology | Synchronous Step-Down (Buck) | Synchronous Buck (Step-Down) |
| Input Voltage Range | 3.4 V to 65 V | 3.4 V to 42 V |
| Output Voltage Range | 0.97 V to 65 V (adjustable) | 0.97 V to 41.58 V (adjustable) |
| Maximum Output Current | 8 A | 5 A |
| Number of Outputs | 1 | 1 |
| Switching Frequency | Up to 2.2 MHz | Up to 3 MHz (programmable) |
| Quiescent Current | 2.5 µA (Burst Mode) | 2.5 µA (output in regulation, Burst Mode) |
| Architecture | Silent Switcher 2nd generation | Silent Switcher (low EMI) |
| Internal Switches | Yes (high-side and low-side MOSFETs) | — |
| Internal Bypass Capacitors | Yes (integrated) | — |
| Operating Junction Temperature | -40 °C to +150 °C (HV grade) | -40 °C to +125 °C (E grade, design assured over -40 to +125) |
| Package | 32-pin LQFN Exposed Pad | 20-WFQFN / 18-lead QFN with Exposed Pad (LGA-style UD package) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant | Compliant (Pb-free) |
| Lead-Free | Yes (#PBF suffix) | — |
| Minimum Switch On-Time | — | 30 ns (top switch) |
| Mode Selection | — | Burst Mode / Spread Spectrum / External Sync / Pulse-Skipping / Forced Continuous |
| MSL Level | — | 1 |
| Output Polarity | — | Positive |