
制造商:Microchip
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.
2.7V to 5.5V input voltage range
2MHz DC/DC converter and two stand-alone LDOs
LDO1: Low input voltage is powered directly from DC/DC converter for highest efficiency
Integrated power-on reset (OR function for all outputs)
Adjustable delay time
LowQ??mode
30μA Total IQ?when in LowQ??mode
DC to DC ConverterOutput current to 600mA in PWM mode
LowQ??Mode: no noise light load mode
75μVRMS?output noise in LowQ??mode
2 MHz PWM operation in normal mode
>90% efficiency
LDOsLDO1 input voltage directly connected to DC/DC converter output voltage for maximum efficiency
Ideal for 1.8V to 1.5V conversion
300mA output current from 1.8V input
Output voltage down to 0.8V
LDO2: 300mA output current capable
Thermal Shutdown Protection
Current Limit Protection
MIC2800 封裝圖
型號(hào) | 制造商 | 描述 | 購買 |
---|---|---|---|
MIC2800-D2FMYML-TR | Microchip | 立即購買 | |
MIC2800-G4JYML-TR | Microchip | 立即購買 | |
MIC2800-G4SYML-TR | Microchip | 立即購買 | |
MIC2800-G7SYML-TR | Microchip | 立即購買 | |
MIC2800-A4SYML-TR | Microchip | 立即購買 | |
MIC2800-G4KYML-TR | Microchip | 立即購買 |
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