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LX7176

1.65MHz 3A Synchronous Buck Converter

Status: In Production

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
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

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
Parametrics
Name
Value
# of Outputs
1
Input Voltage Range Min (V)
3.0-5.5
Input Voltage Range Max (V)
7
Output Voltage Range Min (V)
0.6
Output Voltage Range Max (V)
3.3
Output Current (mA) max
3
Switching Frequency (kHz)
1650
Synchronous Rectifier
Yes
Operating Temp Range
0 to 85
Vfb (V)
0.6
Duty Cycle Max (%)
100
Light Load Efficiency Mode
Pulse Skip
Switch current (A) typ
8.5

Documents

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Data Sheets

  
858KB

Development tools data is currently unavailable.

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Dimension
Solder Composition
JEDEC Indicator
RoHS
China EFUP
LX7176CLQ-13162-TR
0.010400
0.000000
12
VQFN
2x2x1.0mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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