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RAA211803 - DC/DC Step-Down Regulator

General Description

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Key Features

  • 7V to 80V input supply range.
  • Up to 300mA output current.
  • IQ = 5.5µA at 80V, at no load conditions, switching.
  • IQ = 4.5µA at 80V at no load and no switching conditions.
  • RAA211803 is fixed 3.3V VOUT, RAA211805 is fixed 5V VOUT.
  • Minimum on-time of 75ns.
  • Variable frequency operation, frequency programmed by external inductor (10µH to 33µH).
  • Pre-bias, monotonic, and smooth start-up.
  • Protections: Overcurrent (OC) Limit, input Undervoltage Lockout (UVLO),.

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Datasheet Details

Part number RAA211803
Manufacturer Renesas
File Size 4.27 MB
Description DC/DC Step-Down Regulator
Datasheet download datasheet RAA211803 Datasheet

Full PDF Text Transcription for RAA211803 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for RAA211803. For precise diagrams, and layout, please refer to the original PDF.

RAA211803, RAA211805 80V, 300mA, 5.5µA IQ DC/DC Step-Down Regulator The RAA211803 and RAA211805 are easy-to-use, ultra-low quiescent current (IQ) buck regulators with a w...

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easy-to-use, ultra-low quiescent current (IQ) buck regulators with a wide input voltage range of 7V to 80V and up to 300mA output current. RAA211803 has a fixed output voltage of 3.3V, and the RAA211805 output voltage is 5V. The devices offer comprehensive protections, including VIN UVLO, VOUT OVP, overcurrent, and over-temperature protections. The devices are offered in a TSOT23-5 package. Applications ▪ General purpose or LDO replacement ▪ Industrial power supplies ▪ Embedded systems and I/O supplies ▪ E-Bikes, Power Tools ▪ Home/Industrial Automation Datasheet Features ▪ 7V to 80V input supply range ▪ Up to 300mA output

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