Loading [MathJax]/jax/output/SVG/fonts/TeX/fontdata.js
DATA SHEET
LM5141 Wide Input Range Synchronous Buck Controller
1 Features
- –40ºC to +125ºC Ambient Operating Temperature Range
- An AEC-Q100 Qualified Device is Available
- VIN 3.8 V to 65 V (70 V Absolute Maximum)
- Output: Fixed 3.3 V, 5 V, or Adjustable From
1.5 V - 15 V with ±0.8% Accuracy
- Fixed 2.2 MHz or 440 kHz Switching Frequency with ±5% Accuracy
- High-Side and Low-Side Gate Drive With Slew Rate Control
- Optional Frequency Shift by Varying an Analog Voltage or RT Resistor
- Optional Synchronization to an External Clock
- Optional Spread Spectrum
- Shutdown Mode IQ: 10 µA Typical
- Low Standby Mode IQ: 35 µA Typical
- 75 mV Current Limit Threshold with ±0.9% Accuracy
- External Resistor or DCR Current Sensing
- Output Enable Logic Input
- Hiccup Mode for Sustained Overload
- Power Good Indication Output
- Selectable Diode Emulation or Forced Pulse Width Modulation
- QFN-24 Package with Wettable Flanks
- Create a Custom Design Using the LM5141 With the WEBENCH® Power Designer
2 Applications
- Medical Equipment
- Industrial Programmable Logic Controller
- Industrial PC
- Embedded PC
