| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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3,247 pcs
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3247 pcs | On Request | 1 | 16 | On Request | 201049 | On Request | On Request |
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| Tape & Reel |
The LT3645EUD#TRPBF by LT is a highly integrated dual output regulator solution. It features a 500mA step-down switching regulator and a 200mA low dropout linear regulator (LDO). This combination makes it suitable for a wide variety of power management applications, especially those requiring regulation from diverse sources like 24V industrial supplies or automotive batteries.
The buck regulator section supports a wide input voltage range from 3.6V to 36V, with overvoltage lockout protecting the circuit through 55V transients. It operates at a high switching frequency of 750kHz, enabling the use of small, low-cost inductors and capacitors for a compact solution. The LDO regulator operates from the VCC2 pin with input voltages down to 1.2V and provides 200mA of output current with a typical dropout voltage of 310mV.
Key features include internal soft-start, cycle-by-cycle current limit, frequency foldback for short-circuit protection, and thermal shutdown. The device also boasts a low shutdown current of less than 2μA. It is available in a thermally enhanced 16-lead (3mm x 3mm) QFN package or a 12-lead MSE package, both suitable for surface mount applications.
The input voltage range is from 3.6V to 36V.
The buck regulator can supply up to 500mA of output current.
The LDO regulator can supply up to 200mA of output current.
The switching frequency is 750kHz.
The typical dropout voltage from VCC2 to OUT2 is 310mV.
The shutdown current is less than 2μA.
It is available in a 16-lead (3mm x 3mm) QFN package or a 12-lead MSE package.