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22 pcs
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22 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The LT3645EUD#TRPBF is a versatile dual output regulator from Analog Devices, integrating a 500mA step-down (buck) switching regulator and a 200mA low dropout linear regulator (LDO). This device is designed for a wide input voltage range, operating from 3.6V to 36V, making it suitable for various power sources including 24V industrial supplies and automotive batteries. Its high operating frequency of 750kHz allows for the use of small, cost-effective inductors and capacitors, contributing to a compact solution size.
The buck regulator section provides efficient power conversion, while the LDO operates from the VCC2 pin with an input voltage down to 1.2V and offers a typical dropout voltage of 310mV. The LT3645 features include cycle-by-cycle current limiting, frequency foldback for short-circuit protection, internal soft-start to manage input current surge, and thermal shutdown for robust operation. It also includes precision programmable undervoltage lockout and a shutdown current of less than 2μA.
This component is available in a thermally enhanced 16-lead (3mm x 3mm) QFN package, suitable for surface mounting. The wide input voltage range and dual regulator architecture make it ideal for applications such as automotive CMOS image sensors and industrial/automotive microcontroller supplies.
| Qty | Low | High |
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| 1+ | $0.30 | $0.30 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 3.6V to 36V.
The LDO output voltage range is 0.8V to 8V.
The switching frequency is 750kHz typical.
The operating temperature range is -40°C to 125°C.
It comes in a 16-QFN (3x3mm) surface mount package with exposed pad.
The typical dropout voltage is 310mV for VCC2 to OUT2.
The typical shutdown current is less than 2μA.