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STD MP2003 A Dual Supply Very Low Dropout Linear Regulator

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Update time: 2021-04-11 05:27:31
Creation time: 2015-11-21 13:49:39
Description
DESCRIPTION The MP2030 is a very low dropout, dual supply linear regulator. The use of two supplies allows the BIAS to control an NMOS device. The NMOS device supplies power to the load via the IN. In this way the input supply can be just above the desired output, yet still provide very good regulation performance due to the higher bias supply. The BIAS operates from a 2.5V to 5.5V input and regulates the output voltage to as low as 0.9V, and as high as 3.8V The MP2030 can supply up to 3A of load current with a typical dropout voltage of 150mV. The BIAS runs the internal reference and drive circuitry, while the output current comes directly from the IN for high efficiency regulation. The low bias current of 220uA makes the MP2030 ideal for use in battery-powered applications. The BIAS can be directly applied from the battery while IN is powered from the high efficiency buck regulator. This will reduce the output noise and decoupling capacitor. FEATURES • Wide 1.1V to 5.5V Input Voltage Range • Stable with Very Small Ceramic Capacitors • 150mV Dropout at 3A Output • 2% Accurate Output Voltage • Adjustable Output Range of 0.9V to 3.8V • Low Noise: 80µVRMS (10Hz to 100kHz) • PSRR o 32dB at 100kHz • Better Than 0.001%/mA Load Regulation • Stable With Low-ESR Output Capacitors • Low 220uA Ground Current • Internal Thermal Protection • Current Limit Protection • 0.1µA Typical Quiescent Current at Shutdown • Power Good Indicator
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ID Name Designator Footprint Quantity
1 MP2030 U1 DIP 1
2 0.1u C1 C1 1
3 10u C2 C1 1
4 100k R1,R2 R3 2
5 1u C3,C6,C7 C1 3
6 SIP1 BIAS,GND,EN,PGOOD,VOUT HDR1X1 5
7 1n C4 C1 1
8 2.6K 1% R3 R3 1
9 1k,1% R4 R3 1
10 22u C5 C1 1

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