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MCP1826ST-5002E/EB 数据表(PDF) 1 Page - Microchip Technology |
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MCP1826ST-5002E/EB 数据表(HTML) 1 Page - Microchip Technology |
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1 / 36 page  © 2007 Microchip Technology Inc. DS22057A-page 1 MCP1826/MCP1826S Features • 1000 mA Output Current Capability • Input Operating Voltage Range: 2.3V to 6.0V • Adjustable Output Voltage Range: 0.8V to 5.0V (MCP1826 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: 250 mV Typical at 1000 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 (typ) • Low Shutdown Supply Current: 0.1 µA (typ) (MCP1826 only) • Fixed Delay on Power Good Output (MCP1826 only) • Short Circuit Current Limiting and Overtemperature Protection • TO-263-5 (DDPAK-5), TO-220-5, SOT-223-5 Package Options (MCP1826). • TO-263-3 (DDPAK-3), TO-220-3, SOT-223-3 Package Options (MCP1826S). Applications • High-Speed Driver Chipset Power • Networking Backplane Cards • Notebook Computers • Network Interface Cards • Palmtop Computers • 2.5V to 1.XV Regulators Description The MCP1826/MCP1826S is a 1000 mA Low Dropout (LDO) linear regulator that provides high current and low output voltages. The MCP1826 comes in a fixed or adjustable output voltage version, with an output voltage range of 0.8V to 5.0V. The 1000 mA output cur- rent capability, combined with the low output voltage capability, make the MCP1826 a good choice for new sub-1.8V output voltage LDO applications that have high current demands. The MCP1826S is a 3-pin fixed voltage version. The MCP1826/MCP1826S 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 MCP1826/MCP1826S 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 MCP1826 versions have a Shutdown (SHDN) pin. When shut down, the quiescent current is reduced to less than 0.1 µA. On the MCP1826 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 200 µs (typical). The overtemperature and short circuit current-limiting provide additional protection for the LDO during system fault conditions. 1000 mA, Low Voltage, Low Quiescent Current LDO Regulator |
类似零件编号 - MCP1826ST-5002E/EB |
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类似说明 - MCP1826ST-5002E/EB |
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