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Microchip Technology MCP1792/MCP1793 High-Voltage LDO Regulators

Microchip MCP1792/MCP1793 High-Voltage Low Dropout (LDO) Regulators can generate 100mA output current. The input voltage range of 4.5V to 55V makes it ideal in 12V to 48V power rails and high-voltage battery packs. A low UVLO at a shutdown of 2.4V makes it adequate for cold cranking conditions in automotive applications. The MCP1792/MCP1793 comes in 2 standard fixed output-voltage versions: 3.3V and 5.0V. The regulator output is stable with 2.2μF ceramic capacitors. The device is protected from short circuit events by the current foldback function and from overheating using thermal shutdown protection. The regulators are all (Automotive Electronics Council) AEC-Q100-qualified.

The MCP1792 is the 3-lead version of the MCP1792/3 device family, and the MCP1793 is the 5-lead version, which offers shutdown functionality (SHDN pin). While in shutdown, the quiescent current drops to 2μA, allowing for lower overall power consumption. The device has a ground current of 100μA while delivering a maximum output current of 100mA.

Features

  • AEC-Q100 qualified and PPAP capable with grade 0
  • 4.5V to 55V wide input voltage 
  • Up to 70V transient
  • 2.4V Under Voltage Lock Out (UVLO) 
  • -40°C to +150°C extended working temperature range
  • 25uA typical low quiescent supply current: 
  • 2uA typical low shutdown quiescent supply current
  • 100mA typical output current capability
  • 2.2uF stable with Ceramic Output Capacitor
  • 80dB @ 100Hz typical high PSRR

Applications

  • Automotive electronics
  • Microcontroller biasing
  • High-voltage battery packs for power tools, ebikes, etc
  • Smoke detectors and other alarm sensors

Functional Block Diagram

Block Diagram - Microchip Technology MCP1792/MCP1793 High-Voltage LDO Regulators

Associated Product

Microchip Technology MCP1799 High-Voltage LDO Regulators

4.5V to 45V input voltage makes it ideal in 12V to 36V power rails and high-voltage battery packs.

Learn Moreà propos de Microchip Technology MCP1799 High-Voltage LDO Regulators View Productslié à Microchip Technology MCP1799 High-Voltage LDO Regulators

Associated Reference Design

Microchip Technology Conception de référence E-Fuse auxiliaire haute tension

Cartes de démonstration utilisées pour la technologie E-Fuse auxiliaire haute tension dans les applications EV et EV hybrides.

Learn Moreà propos de Microchip Technology Conception de référence E-Fuse auxiliaire haute tension View Productslié à Microchip Technology Conception de référence E-Fuse auxiliaire haute tension
Publié le: 2019-09-25 | Mis à jour le: 2023-06-06