MP2240 3A, 800kHz Step-Down Converter TSOT23

MP2240 3A, 800kHz Step-Down Converter TSOT23

Key Specifications

Features

• 6V-to-16V Operating Input Range
• 80mΩ/30mΩ Low RDS(ON) Internal Power MOSFETs
• High-Efficiency Synchronous Mode Operation
• Fixed 800kHz Switching Frequency
• External AAM pin for Power-Save Mode Programming
• External Soft-Start
• OCP Protection and Hiccup
• Thermal Shutdown
• Output Adjustable from 0.8V
• Available in an 8-pin TSOT-23 Package

Applications

• Notebook Systems and I/O Power
• Digital Set-Top Boxes
• Flat-Panel Television and Monitors

Design Notes

• The step-down topology needs an inductor and output capacitor sized for the ripple at the switching frequency, not just the DC load.
• Keep the input loop short — high di/dt at the switch node sets conducted EMI.
• Power switches are integrated, so the thermal path is the PCB copper under the pad.
• Package TSOT23 — check the land pattern in the datasheet before layout.

Common Questions