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MCP1825 Datasheet(PDF) 1 Page - Microchip Technology |
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MCP1825 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 38 page  © 2008 Microchip Technology Inc. DS22056B-page 1 MCP1825/MCP1825S Features • 500 mA Output Current Capability • Input Operating Voltage Range: 2.1V to 6.0V • Adjustable Output Voltage Range: 0.8V to 5.0V (MCP1825 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: 210 mV Typical at 500 mA • Typical Output Voltage Tolerance: 0.5% • 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) (MCP1825 only) • Fixed Delay on Power Good Output (MCP1825 only) • Short Circuit Current Limiting and Overtemperature Protection • TO-263-5 (DDPAK-5), TO-220-5, SOT-223-5 Package Options (MCP1825). • TO-263-3 (DDPAK-3), TO-220-3, SOT-223-3 Package Options (MCP1825S). Applications • High-Speed Driver Chipset Power • Networking Backplane Cards • Notebook Computers • Network Interface Cards • Palmtop Computers • 2.5V to 1.XV Regulators Description The MCP1825/MCP1825S is a 500 mA Low Dropout (LDO) linear regulator that provides high current and low output voltages. The MCP1825 comes in a fixed or adjustable output voltage version, with an output voltage range of 0.8V to 5.0V. The 500 mA output current capability, combined with the low output voltage capability, make the MCP1825 a good choice for new sub-1.8V output voltage LDO applications that have high current demands. The MCP1825S is a 3-pin fixed voltage version. The MCP1825/MCP1825S 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 MCP1825/MCP1825S 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 MCP1825 versions have a Shutdown (SHDN) pin. When shut down, the quiescent current is reduced to less than 0.1 µA. On the MCP1825 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. 500 mA, Low Voltage, Low Quiescent Current LDO Regulator |
Similar Part No. - MCP1825 |
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Similar Description - MCP1825 |
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