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LX7167

3MHz, 2.4A Step Down Converter

Status: In Production

Features:

  • 2.4A Step-down Regulator
  • Operational Input Supply Voltage Range: 3V-5.5V
  • Integrated PMOS and NMOS
  • Load Current from Zero to 2.4A
  • 3MHz Switching Frequency
  • SKIP Pulse to Improve Light Load Efficiency
  • Input UVLO and OV Protection
  • Enable Pin
  • Power Good
  • Internal Soft-start
  • Cycle-by-Cycle Over Current Protection
  • Hiccup Mode Operation Under FB UVLO
  • RoHS Compliant for Pb Free
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

LX7167 is a step-down PWM Switching Regulator IC with integrated high side P-CH and low side NCH MOSFETs. The IC operates using a hysteretic control topology with a full load operating switching frequency of 3MHz allowing small output filter components while maintaining excellent dynamic load response. The operational input voltage range of LX7167 is from 3V to 5.5V. The part has a Power Save Mode (PSM) that automatically transitions between PWM and PSM mode depending on the load current. This allows the converter’s efficiency to remain high when load current drops. There is a Power Good function to indicate the status of the IC. In the shutdown mode, the IC’s current consumption is reduced to less than 1µA and the output capacitor is discharged. Other features of the part are: a) Cycle-by-cycle current limit followed by HICCUP mode which reduces the overall power dissipation of the internal MOSFETs, b) thermal protection and internal digital soft start. The LX7167 is available in a 2mm x 2mm 8 pin exposed pad DFN package.

Additional Features
  • 2.4A Step-down Regulator
  • Operational Input Supply Voltage Range: 3V-5.5V
  • Integrated PMOS and NMOS
  • Load Current from Zero to 2.4A
  • 3MHz Switching Frequency
  • SKIP Pulse to Improve Light Load Efficiency
  • Input UVLO and OV Protection
  • Enable Pin
  • Power Good
  • Internal Soft-start
  • Cycle-by-Cycle Over Current Protection
  • Hiccup Mode Operation Under FB UVLO
  • RoHS Compliant for Pb 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
2
Switching Frequency (kHz)
3000
Synchronous Rectifier
Yes
Operating Temp Range
-10 to 85
Vfb (V)
0.6
Duty Cycle Max (%)
100
Light Load Efficiency Mode
Pulse Skip
Switch current (A) typ
3.5

Documents

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Data Sheets

  
572KB

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
LX7167ACLD-TR
0.000000
0.000000
8
WDFN
2x2x0.8mm
Matte Tin
e3
LX7167CLD-TR
0.000000
0.000000
8
WDFN
2x2x0.8mm
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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