LT8646SEV#WPBF
Active65V, 8A SYNCHRONOUS STEP-DOWN SILENT SWITCHER 2 WITH 2.5ΜA QUIESCENT CURRENT
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LT8646SEV#WPBF
Active65V, 8A SYNCHRONOUS STEP-DOWN SILENT SWITCHER 2 WITH 2.5ΜA QUIESCENT CURRENT
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Technical Specifications
Parameters and characteristics for this part
| Specification | LT8646SEV#WPBF |
|---|---|
| Current - Output | 8 A |
| Frequency - Switching [Max] | 2.2 MHz |
| Frequency - Switching [Min] | 200 kHz |
| Function | Step-Down |
| Grade | Automotive |
| 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 |
| Qualification | AEC-Q100 |
| 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] | 12 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 | $ | |
|---|---|---|---|---|
| Digikey | Tray | 1 | $ 17.95 | |
| 10 | $ 12.95 | |||
| 25 | $ 11.67 | |||
| 80 | $ 10.43 | |||
| 230 | $ 9.60 | |||
| 440 | $ 9.19 | |||
| 945 | $ 9.12 | |||
Description
General part information
LT8646S Series
The LT8645S/LT8646S synchronous step-down regulator features second generation Silent Switcher architecture designed to minimize EMI emissions while delivering high efficiency at high switching frequencies. This includes the integration of bypass capacitors to optimize all the fast current loops inside and make it easy to achieve advertised EMI performance by eliminating layout sensitivity.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. The LT8646S has external compensation to enable current sharing and fast transient response 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