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MIC2800 Datasheet(PDF) 1 Page - Microchip Technology |
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MIC2800 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 32 page  2017-2023 Microchip Technology Inc. and its subsidiaries DS20005839C-page 1 MIC2800 Features • 2.7V to 5.5V Input Voltage Range • 2 MHz DC/DC Converter and Two LDOs • Integrated Power-on Reset (POR) - Adjustable POR Delay Time • LOWQ Mode - 30 µA Total IQ when in LOWQ Mode • DC/DC Converter - Up to 600 mA of Output Current in PWM Mode -LOWQ Mode: NO RIPPLE Light Load Mode -75 µVRMS Output Noise in LOWQ Mode - 2 MHz PWM Mode Operation - > 90% Efficiency • LDO1 Input Voltage Directly Connected to DC/DC Converter Output Voltage for Maximum Efficiency - Ideal for 1.8V to 1.5V Conversion - 300 mA Output Current from 1.8V Input - Output Voltage Down to 0.8V • LDO2 – 300 mA Output Current Capable • Thermal Shutdown Protection • Current Limit Protection • Simple, Leakage-Free Interfacing to Host MPU in Applications with Backup Power • Tiny 16-Pin 3 mm x 3 mm QFN Package Applications • Embedded MPU and MCU Power • Portable and Wearable Applications • Low-Power RF Systems • Backup Power Systems General Description The MIC2800 is a high-performance power management IC, featuring three output voltages with maximum efficiency. Integrating a 2 MHz DC/DC converter with a LDO post-regulator, the MIC2800 gives two high-efficiency outputs with a second, 300 mA LDO for maximum flexibility. The MIC2800 features a LOWQ mode, reducing the total current draw while in this mode to less than 30 µA. In LOWQ mode, the output noise of the DC/DC converter is reduced to 75 µVRMS, significantly lower than other converters that use a PFM light load mode that can interfere with sensitive RF circuitry. The DC/DC converter uses small values of L and C to reduce board space but still retains efficiencies over 90% at load currents up to 600 mA. The MIC2800 operates with very small ceramic output capacitors and inductors for stability, reducing required board space and component cost and it is available in various output voltage options in the 16-pin 3 mm x 3 mm QFN leadless package. Package Type MIC2800 16-PIN 3mm X 3mm QFN LOWQ BIAS SGND PGND POR LDO1 LDO FB Pin 1 Pin 2 Pin 3 Pin 4 Pin 12 Pin 11 Pin 10 Pin 9 Digital Power Management IC 2 MHz, 600 mA DC/DC with Dual 300 mA/300 mA Low VIN LDOs |
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