MP2143DJ-LF-Z

MP2143 is a monolithic, step-down, switch mode converter with internal power MOSFETs. It can achieve up to 3A continuous output current from a 2.5V to 5.5V input voltage with excellent load and line regulation. The output voltage can be regulated as low as 0.6V. Constant-on-time control provides fast transient response and eases loop stabilization. Fault condition protections include cycle-by-cycle current limiting and thermal shutdown. The MP2143 is available in small TSOT23-8 package and requires only a minimal number of readily available standard external components. The MP2143 is ideal for a wide range of applications including high-performance DSPs, FPGAs, smartphones, portable instruments and DVD drivers. Applications include low voltage I/O system power, handheld/battery-powered systems and wireless/networking cards.

• COT (constant-on-time) synchronous step down switcher
• 100% duty cycle in dropout
• Up to 3A output current, low IQ: 40µA
• 80mohm and 40mohm internal power MOSFET switches
• Default 1.2MHz switching frequency
• EN and power-good for power sequencing
• Cycle-by-cycle overcurrent protection
• Auto discharge at power off
• Short circuit protect with hicc-up mode
• Stable with low-ESR output ceramic capacitors

Notes

MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size.