Name: L4973D3.3 Supplier,stock L4973D3.3,SIC electronics ship on the same day
Brand: Electronic components distributor,SIC electronics stock delivery on the same day
SKU: L4973D3.3
Availability: InStock

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Features
■ Up to 3.5 A step down converter
■ Operating input voltage from 8 V to 55 V
■ 3.3 V and 5.1 V (±1%) fixed output, and adjustable outputs from: – 0.5 V to 50 V (3.3 type) – 5.1 V to 50 V (5.1 type)
■ Frequency adjustable up to 300 kHz
■ Voltage feed forward
■ Zero load current operation (min. 1 mA)
■ Internal current limiting (pulse by pulse and HICCUP mode)
■ Precise 5.1 V (1.5%) reference voltage externally available
■ Input/output synchronization function
■ Inhibit for zero current consumption (100 mA typ. at VCC = 24 V)
■ Protection against feedback disconnection
■ Thermal shutdown
■ Output over voltage protection
■ Soft-start function
Description
The L4973 is a step down monolithic powerswitching regulator delivering 3.5 A at fixedvoltages of 3.3 V or 5.1 V and using a simpleexternal divider output adjustable voltage up to50V. Realized in BCD mixed technology, thedevice uses an internal power D-MOS transistor(with a typical RDS(on) of 0.15 Ω) to obtain veryhigh efficiency and very fast switching times.Switching frequency up to 300 kHz are achievable(the maximum power dissipation of the packagesmust be observed).
A wide input voltage range between 8 V to 55 Vand output voltages regulated from 3.3 V to 40 Vcover the majority of the today applications.Features of this new generation of DC-DCconverter includes pulse by pulse current limit,hiccup mode for output short circuit protection,voltage feed forward regulation, soft-start,input/output synchronization, protection againstfeedback loop disconnection, inhibit for zerocurrent consumption and thermal shutdown.Packages available are in plastic dual in line, DIP18 (12+3+3) for standard assembly, and SO20(12+4+4) for SMD assembly.

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4. Shipping Cost

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FedEx International,5-7 business days.