The MIC5249-1.8BMM-TR is an efficient, precise 300mA CMOS voltage regulator with power-on reset delay which can be implemented via an external capacitor. It offers 1% initial accuracy, extremely low dropout voltage (typically 400mV @ 300mA), and low ground current (typically 85mA) over load.
Designed specifically for noise-critical applications in handheld or battery-powered devices, the MIC5249-1.8BMM-TR comes equipped with a noise reduction feature to filter the output noise via an external capacitor. Other features of the MIC5249-1.8BMM-TR include a logic-compatible enable pin, current limit, thermal shutdown, ultra-fast transient response, and an active clamp to speed up device turnoff.
The MIC5249-1.8BMM-TR also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in handheld wireless devices.
Feature
- 300mA output current
- High PSRR: 65dB at 120Hz
- Stable with ceramic output capacitor
- Power-on reset output with adjustable delay time
- High output accuracy:
- ±1.0% initial accuracy
- ±3.0% over temperature
- Low dropout voltage: 400mV at 300mA
- Low quiescent current: 85mA
- Zero off-mode current state
- Thermal shutdown protection
- Current limit protection
- Tiny MSOP-8 package
