Microchip Technology, Inc. 1.65MHz 3A Synchronous Buck Converter LX7176

Description
The LX7176 is a 3A step-down regulator with integrated MOSFETs placed in a space saving QFN12 2mm x 2mm package for today’s mobile devices. It uses an ultra fast, constant frequency hysteretic control method and a high switching frequency to minimize external filter components while maintaining excellent regulation. The LX7176 has a fixed 0.6V reference, Power Good, and Enable pins. The LX7176 operates from 3.0V to 5.5V rails. Cycle-by-cycle current limiting protects against overcurrent conditions. The LX7176 operates in hiccup mode to further enhance the robustness of the converter for heavy over-load or short-circuit faults and it automatically recovers once the fault clears. Thermal protection shuts down the regulator under over-temperature conditions. Over voltage conditions will immediately shut off the output to protect against permanent damage. Additional Features 0-3A Step-down Regulator Operational Input Supply Voltage Range: 3.0V-5.5V (short durations to 6.5V) Integrated PMOS and NMOS Hysteretic Control Offers Best Transient Response PWM Switching at a Constant 1.65MHz Input Under-voltage and Over-voltage Protection Enable and Power Good Function Internal Soft-start Cycle-by-Cycle Over Current Protection Hiccup Mode Protects Against Short Circuit Faults RoHS Compliant & Halogen Free
Datasheet
Description
The LX7176 is a 3A step-down regulator with integrated MOSFETs placed in a space saving QFN12 2mm x 2mm package for today’s mobile devices. It uses an ultra fast, constant frequency hysteretic control method and a high switching frequency to minimize external filter components while maintaining excellent regulation. The LX7176 has a fixed 0.6V reference, Power Good, and Enable pins. The LX7176 operates from 3.0V to 5.5V rails. Cycle-by-cycle current limiting protects against overcurrent conditions. The LX7176 operates in hiccup mode to further enhance the robustness of the converter for heavy over-load or short-circuit faults and it automatically recovers once the fault clears. Thermal protection shuts down the regulator under over-temperature conditions. Over voltage conditions will immediately shut off the output to protect against permanent damage. Additional Features 0-3A Step-down Regulator Operational Input Supply Voltage Range: 3.0V-5.5V (short durations to 6.5V) Integrated PMOS and NMOS Hysteretic Control Offers Best Transient Response PWM Switching at a Constant 1.65MHz Input Under-voltage and Over-voltage Protection Enable and Power Good Function Internal Soft-start Cycle-by-Cycle Over Current Protection Hiccup Mode Protects Against Short Circuit Faults RoHS Compliant & Halogen Free
Datasheet

Suppliers

Company
Product
Description
Supplier Links
1.65MHz 3A Synchronous Buck Converter - LX7176 - Microchip Technology, Inc.
Chandler, AZ, United States
1.65MHz 3A Synchronous Buck Converter
LX7176
1.65MHz 3A Synchronous Buck Converter LX7176
The LX7176 is a 3A step-down regulator with integrated MOSFETs placed in a space saving QFN12 2mm x 2mm package for today’s mobile devices. It uses an ultra fast, constant frequency hysteretic control method and a high switching frequency to minimize external filter components while maintaining excellent regulation. The LX7176 has a fixed 0.6V reference, Power Good, and Enable pins. The LX7176 operates from 3.0V to 5.5V rails. Cycle-by-cycle current limiting protects against overcurrent conditions. The LX7176 operates in hiccup mode to further enhance the robustness of the converter for heavy over-load or short-circuit faults and it automatically recovers once the fault clears. Thermal protection shuts down the regulator under over-temperature conditions. Over voltage conditions will immediately shut off the output to protect against permanent damage. Additional Features 0-3A Step-down Regulator Operational Input Supply Voltage Range: 3.0V-5.5V (short durations to 6.5V) Integrated PMOS and NMOS Hysteretic Control Offers Best Transient Response PWM Switching at a Constant 1.65MHz Input Under-voltage and Over-voltage Protection Enable and Power Good Function Internal Soft-start Cycle-by-Cycle Over Current Protection Hiccup Mode Protects Against Short Circuit Faults RoHS Compliant & Halogen Free

The LX7176 is a 3A step-down regulator with integrated MOSFETs placed in a space saving QFN12 2mm x 2mm package for today’s mobile devices. It uses an ultra fast, constant frequency hysteretic control method and a high switching frequency to minimize external filter components while maintaining excellent regulation. The LX7176 has a fixed 0.6V reference, Power Good, and Enable pins. The LX7176 operates from 3.0V to 5.5V rails. Cycle-by-cycle current limiting protects against overcurrent conditions. The LX7176 operates in hiccup mode to further enhance the robustness of the converter for heavy over-load or short-circuit faults and it automatically recovers once the fault clears. Thermal protection shuts down the regulator under over-temperature conditions. Over voltage conditions will immediately shut off the output to protect against permanent damage.

Additional Features

  • 0-3A Step-down Regulator
  • Operational Input Supply Voltage Range: 3.0V-5.5V (short durations to 6.5V)
  • Integrated PMOS and NMOS
  • Hysteretic Control Offers Best Transient Response
  • PWM Switching at a Constant 1.65MHz
  • Input Under-voltage and Over-voltage Protection
  • Enable and Power Good Function
  • Internal Soft-start
  • Cycle-by-Cycle Over Current Protection
  • Hiccup Mode Protects Against Short Circuit Faults
  • RoHS Compliant & Halogen Free
Supplier's Site Datasheet

Technical Specifications

  Microchip Technology, Inc.
Product Category IC Power Supplies
Product Number LX7176
Product Name 1.65MHz 3A Synchronous Buck Converter
Package Type Other; ['VQFN']
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