mp2105 系列 mps同步整流降压ic

先进的电源管理 原厂鼎力支持 高效

description
the mp2105 is a 1mhz constant frequency,
current mode, pwm step-down converter. the
device integrates a main switch and a
synchronous rectifier for high efficiency without
an external schottky diode. it is ideal for
powering portable equipment that runs from a
single cell lithium-ion (li+) battery. the
mp2105 can supply 800ma of load current from
a 2.5v to 6v input voltage. the output voltage
can be regulated as low as 0.6v. the mp2105
can also run at 100% duty cycle for low dropout
applications.
the mp2105 is available in a low profile (1mm)
5-pin, tsot package.
evaluation board reference
board number dimensions
ev2105dj-00a 2.0”x x 2.0”y x 0.5”z
features
• high efficiency: up to 95%
• 1mhz constant switching frequency
• 800ma available load current
• 2.5v to 6v input voltage range
• output voltage as low as 0.6v
• 100% duty cycle in dropout
• current mode control
• short circuit protection
• thermal fault protection
• <0.1μa shutdown current
• space saving 5-pin tsot23 package
applications
• cellular and smart phones
• microprocessors and dsp core supplies
• pdas
• mp3 players
• digital still and video cameras
• portable instruments