LT8637EV#WPBF
Active42V, 5A/7A PEAK SYNCHRONOUS STEP-DOWN SILENT SWITCHER WITH 2.5ΜA QUIESCENT CURRENT
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LT8637EV#WPBF
Active42V, 5A/7A PEAK SYNCHRONOUS STEP-DOWN SILENT SWITCHER WITH 2.5ΜA QUIESCENT CURRENT
Technical Specifications
Parameters and characteristics for this part
| Specification | LT8637EV#WPBF |
|---|---|
| Current - Output | 5 A |
| Frequency - Switching [Max] | 3 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 | 20-TFQFN Exposed Pad |
| Qualification | AEC-Q100 |
| Supplier Device Package | 20-LQFN (4x3) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 42 V |
| Voltage - Input (Min) [Min] | 3.4 V |
| Voltage - Output (Max) [Max] | 42 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 | $ 12.62 | |
| 10 | $ 8.90 | |||
| 25 | $ 7.94 | |||
| 80 | $ 7.02 | |||
| 230 | $ 6.40 | |||
| 440 | $ 6.09 | |||
| 945 | $ 5.81 | |||
Description
General part information
LT8637 Series
TheLT8636/LT8637 synchronous step-down regulator features Silent Switcher architecture designed to minimize EMI emissions while delivering high efficiency at high switching frequencies. Peak current mode control with a 30ns minimum on-time allows high step-down ratios even at high switching frequencies.The LT8636’s ultralow 2.5µA quiescent current—with the output in full regulation—enables applications requiring highest efficiency at very small load currents. The LT8637 has external compensation to enable current sharing and fast transient response at high switching frequencies. A CLKOUT pin enables synchronizing other regulators to the LT8636/LT8637.Burst Mode operation enables ultralow standby current consumption, forced continuous mode can control frequency harmonics across the entire output load range, or spread spectrum operation can further reduce EMI emissions. Soft-start and tracking functionality is accessed via the TR/SS pin, and an accurate input voltage UVLO threshold can be set using the EN/UV pin.APPLICATIONSAutomotive and Industrial SuppliesGeneral Purpose Step-Down