
Catalog
2MHz 600mA Buck + Dual 300mA LDO w/ LowQ Mode
Key Features
- 2.7V to 5.5V input voltage range
- LDO1: Low input voltage is powered directly from DC/DC converter for highest efficiency
- Adjustable delay time
- 30µA Total IQ when in LowQ® mode
- Buck output current to 600mA in PWM mode
- 75µVRMS output noise in LowQ® mode
- 2 MHz PWM operation in normal mode
- >90% efficiency
- Ideal for 1.8V to 1.5V conversion
- 300mA LDO output current from 1.8V input
- Output voltage down to 0.8V
- LDO2: 300mA output current capable
- Thermal Shutdown Protection
- Current Limit Protection
Description
AI
The MIC2800 is a high performance power management IC, giving three output voltages with maximum efficiency. Integrating a 2MHz DC/DC converter with an LDO post regulator, the MIC2800 gives two high efficiency outputs with a second, 300mA LDO for maximum flexibility. The MIC2800 features a LowQ® mode, reducing the total current draw while in this mode to less than 30µA. In LowQ® mode, the output noise of the DC to DC converter is 75µVRMS, significantly lower than other converters which use a PFM light load mode that can interfere with sensitive RF circuitry.The DC to DC converter uses small values of L and C to reduce board space but still retains efficiencies over 90% at load currents up to 600mA.The MIC2800 is a μCap design, operating with very small ceramic output capacitors and inductors for stability, reducing required board space and component cost.
Also, checkout MPU power solutions with
MIC2800. Go to [Treelinktool](https://www.microchip.com/treelinktool/) under DC/DC converters and MPU Power for further
information.