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MCP1824S-0802EXX Datasheet(PDF) 1 Page - Microchip Technology |
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MCP1824S-0802EXX Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 34 page  © 2007 Microchip Technology Inc. DS22070A-page 1 MCP1824/MCP1824S Features • 300 mA Output Current Capability • Input Operating Voltage Range: 2.1V to 6.0V • Adjustable Output Voltage Range: 0.8V to 5.0V (MCP1824 only) • Standard Fixed Output Voltages: - 0.8V, 1.2V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V • Other Fixed Output Voltage Options Available Upon Request • Low Dropout Voltage: 200 mV Typical at 300 mA • Typical Output Voltage Tolerance: 0.4% • Stable with 1.0 µF Ceramic Output Capacitor • Fast Response to Load Transients • Low Supply Current: 120 µA (typical) • Low Shutdown Supply Current: 0.1 µA (typical) (MCP1824 only) • Fixed Delay on Power Good Output (MCP1824 only) • Short Circuit Current Limiting and Overtemperature Protection • 5-Lead Plastic SOT-223, SOT-23 Package Options (MCP1824) • 3-Lead Plastic SOT-223 Package Option (MCP1824S) Applications • High-Speed Driver Chipset Power • Networking Backplane Cards • Notebook Computers • Network Interface Cards • Palmtop Computers • 2.5V to 1.XV Regulators Description The MCP1824/MCP1824S is a 300 mA Low Dropout (LDO) linear regulator that provides high current and low output voltages. The MCP1824 comes in a fixed or adjustable output voltage version, with an output voltage range of 0.8V to 5.0V. The 300 mA output current capability, combined with the low output voltage capability, make the MCP1824 a good choice for new sub-1.8V output voltage LDO applications that have high current demands. The MCP1824S is a 3-pin fixed voltage version. The MCP1824/MCP1824S is stable using ceramic output capacitors that inherently provide lower output noise and reduce the size and cost of the entire regulator solution. Only 1 µF of output capacitance is needed to stabilize the LDO. Using CMOS construction, the quiescent current consumed by the MCP1824/MCP1824S is typically less than 120 µA over the entire input voltage range, making it attractive for portable computing applications that demand high output current. The MCP1824 versions have a Shutdown (SHDN) pin. When shut down, the quiescent current is reduced to less than 0.1 µA. On the MCP1824 fixed output versions, the scaled- down output voltage is internally monitored and a power good (PWRGD) output is provided when the output is within 92% of regulation (typical). The PWRGD delay is internally fixed at 110 µs (typical). The overtemperature and short circuit current-limiting provide additional protection for the LDO during system fault conditions. 300 mA, Low Voltage, Low Quiescent Current LDO Regulator |
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