Datasheet Texas Instruments LM21305SQ/NOPB — 数据表

Sample &
Buy Product
Folder Support &
Community Tools &
Software Technical
Documents LM21305
SNVS639G – DECEMBER 2009 – REVISED DECEMBER 2015 LM21305 3-V to 18-V, 5-A, Adjustable Frequency Synchronous Buck Converter
1 Features 2 Applications 1 High-Efficiency Synchronous DC-DC Converter:
– Integrated Low RDSon Power MOSFETs
– Wide Input Voltage Range: 3 V to 18 V
– Load Current as High as 5 A
– Switching Frequency: 300 kHz to 1.5 MHz
External Frequency Synchronization
Accurate 0.598-V Feedback Voltage Reference
Ultra-Fast Line and Load Transient Response:
– Peak Current-Mode Control
– Internal Slope Compensation
– High-Bandwidth Error Amplifier
Ultra-Low Shutdown Quiescent Current
Wide Duty-Cycle Operating Range:
– TON-MIN: 70 ns for Low VOUT
– TOFF-MIN: 50 ns for High Duty Cycle
Diode Emulation Mode at Light Loads …