Datasheet Microchip MIC2206-1.2YML-TR — 数据表

MIC2206
2MHz PWM Synchronous Buck
Regulator with LOWQ Mode and Voltage
Scaling General Description Features The Micrel MIC2206 is a high efficiency 2MHz PWM
synchronous buck (step-down) regulator that
features a LOWQв„ў LDO standby mode that draws
only 18ВµA of quiescent current. The MIC2206
allows an ultra-low noise, small size, and high
efficiency solution for portable power applications.
In PWM mode, the MIC2206 operates with a
constant frequency 2MHz PWM control. Under light
load conditions, such as in system sleep or standby
modes, the PWM switching operation can be
disabled to reduce switching losses. In this light
load LOWQв„ў mode, the LDO maintains an output
voltage of 1V and draws only 18ВµA of quiescent
current. The LDO mode of operation saves battery
life while not introducing spurious noise and high
ripple as experienced with pulse skipping or bursting
mode regulators.
The MIC2206 operates from 2.7V to 5.5V input and
features internal power MOSFETs that can supply
up to 600mA output current in PWM mode. It can …