| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
1,000 pcs
|
1000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Current | |
| Frequency | |
| Function | |
| Mounting Type | |
| Number of Outputs | |
| Operating Temperature | |
| Output Configuration | |
| Output Type | |
| Quiescent Current | |
| SVHC Present | |
| Supplier Device Package | |
| Supplier Package | |
| Synchronous Rectifier | |
| Topology | |
| Voltage |
The LT8640SEV#PBF is a synchronous step-down switching regulator from Analog Devices, featuring the second-generation Silent Switcher architecture designed to minimize EMI emissions. It operates with an input voltage range of 3.4V to 42V and can deliver up to 6A of continuous output current, with a peak current of 7A. The device supports adjustable output voltages and operates at switching frequencies between 200kHz and 3MHz.
This regulator is ideal for noise-sensitive applications due to its ultralow EMI emissions and reduced layout sensitivity, aided by internal bypass capacitors. It achieves high efficiency, up to 96% at 1MHz and 95% at 2MHz when converting 12VIN to 5VOUT. The LT8640SEV#PBF utilizes peak current mode control with a 30ns minimum on-time, enabling high step-down ratios. It is available in a compact 24-lead LQFN (4x4mm) package suitable for surface mounting.
Key features include Burst Mode operation for ultralow quiescent current (2.5µA regulating 12VIN to 3.3VOUT for LT8640S variants), forced continuous mode for controlled frequency harmonics, and optional spread spectrum modulation for further EMI reduction. The LT8643S variant offers external compensation for current sharing and fast transient response. This part is AEC-Q100 qualified for automotive applications.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.08 | $1.08 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The maximum input voltage is 42V.
The maximum continuous output current is 6A.
The switching frequency can be adjusted from 200kHz to 3MHz.
The operating temperature range is -40°C to 125°C (TJ).
It is supplied in a 24-LQFN (4x4mm) package with an exposed pad.
Yes, it is RoHS3 compliant.
The Moisture Sensitivity Level is 1.