LT8640IUDC-1#PBF vs LT8645SHV-2#PBF Comparison
Detailed side-by-side comparison of LT8640IUDC-1#PBF by Analog Devices and LT8645SHV-2#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
LT8645SHV-2#PBF - 65V 8A Silent Switcher Buck | Analog Devices
LT8645SHV-2#PBF ✓ ActiveSpecification Comparison
| Parameter | LT8640IUDC-1#PBF | LT8645SHV-2#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) | $5.10 | $8.10 |
| Topology | Synchronous Buck (Step-Down) | Synchronous Step-Down (Buck) |
| Input Voltage Range | 3.4 V to 42 V | 3.4 V to 65 V |
| Output Voltage Range | 0.97 V to 41.58 V (adjustable) | 0.97 V to 65 V (adjustable) |
| Maximum Output Current | 5 A | 8 A |
| Switching Frequency Range | 200 kHz to 3 MHz | — |
| Minimum Top Switch On-Time | 30 ns | — |
| Quiescent Current (Burst Mode) | 2.5 uA | — |
| Operating Temperature Range | -40C to +125C (TJ) | — |
| Package | 20-WFQFN, 18 leads, exposed pad (3 mm x 4 mm) | 32-pin LQFN Exposed Pad |
| Mounting Type | Surface Mount | Surface Mount |
| Mode (LT8640-1) | Forced Continuous PWM at light load | — |
| Mode Selection | Burst / Spread-Spectrum / SYNC / Forced-Continuous via SYNC/MODE pin | — |
| Efficiency (architectural claim) | Silent Switcher architecture, low-EMI | — |
| MSL Level | 1 (unlimited) | — |
| Lead-Free / RoHS | Yes (PBF suffix) | — |
| Number of Outputs | — | 1 |
| Switching Frequency | — | Up to 2.2 MHz |
| Quiescent Current | — | 2.5 µA (Burst Mode) |
| Architecture | — | Silent Switcher 2nd generation |
| Internal Switches | — | Yes (high-side and low-side MOSFETs) |
| Internal Bypass Capacitors | — | Yes (integrated) |
| Operating Junction Temperature | — | -40 °C to +150 °C (HV grade) |
| RoHS Status | — | Compliant |
| Lead-Free | — | Yes (#PBF suffix) |