LT8645SEV-2#PBF
Active65V, 8A SYNCHRONOUS STEP-DOWN SILENT SWITCHER WITH 2.5ΜA QUIESCENT CURRENT
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LT8645SEV-2#PBF
Active65V, 8A SYNCHRONOUS STEP-DOWN SILENT SWITCHER WITH 2.5ΜA QUIESCENT CURRENT
Technical Specifications
Parameters and characteristics for this part
| Specification | LT8645SEV-2#PBF |
|---|---|
| Current - Output | 8 A |
| Frequency - Switching [Max] | 2.2 MHz |
| Frequency - Switching [Min] | 200 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | 32-TFQFN Exposed Pad |
| Supplier Device Package | 32-LQFN (6x4) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 65 V |
| Voltage - Input (Min) [Min] | 3.4 V |
| Voltage - Output (Max) [Max] | 65 V |
| Voltage - Output (Min/Fixed) [Min] | 0.97 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | Updated |
|---|---|---|---|---|
| Digikey | N/A | 100 | $ 13.74 | 1m+ |
Description
General part information
LT8645S-2 Series
The LT8645S-2 synchronous step-down regulator features Silent Switcher architecture designed to minimize EMI emissions while delivering high efficiency at high switching frequencies. This performance makes the LT8645S-2 ideal for noise sensitive applications and environments.The fast, clean, low-overshoot switching edges enable high efficiency operation even at high switching frequencies, leading to a small overall solution size. Peak current mode control with a 40ns minimum on-time allows high step-down ratios even at high switching frequencies.Burst Mode®operation enables ultralow standby current consumption, pulse-skipping mode allows full switching frequency at lower output loads, or spread spectrum operation can further reduce EMI emissions.ApplicationsAutomotive and Industrial SuppliesGeneral Purpose Step-DownGSM Power Supplies