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DC-DC Switching Buck (Step Down) Regulator, Adjustable, 8V-55Vin, 3.3V-50Vout, 1.5Aout, SOIC-16


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L4971D013TR   Datasheet
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Product Overview

The L4971D013TR is a step-down monolithic power Switching Regulator delivering 1.5A at a voltage between 3.3 and 50V (selected by a simple external divider). Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical Rdson of 0.25R) to obtain very high efficiency and high switching speed. A switching frequency up to 300kHz is achievable. A wide input voltage range between 8 to 55V and output voltages regulated from 3.3 to 50V cover the majority of today's applications. Features of this new generation of DC-to-DC converter include pulse-by-pulse current limit, hiccup mode for short-circuit protection, voltage feed-forward regulation, soft-start, protection against feedback loop disconnection, inhibit for zero current consumption and thermal shutdown.
  • Protection against feedback disconnection
  • Inhibit for zero current consumption
  • Soft-start function
  • Zero load current operation
  • Precise 3.3V (±1%) internal reference voltage
  • Internal current limiting (pulse-by pulse and hiccup mode)


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Product Information

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Buck (Step Down)













MSL 1 - Unlimited
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Technical Docs (2)

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More stock available to supplier lead times which is approximately 18/10/21

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S$2.90 ( S$3.10  Inc. GST)

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