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SP6231 pdf datasheet (500mA, 3
消耗积分:2 |
格式:rar |
大小:333 |
2008-12-27
凤毛麟角
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The SP6231 is a 500mA, 3.3V LDO with an integrated auxiliary voltage input switch. During
normal operation, the SP6231 acts as a standard LDO with an output voltage of 3.3V delivering
up to 500mA. When the 5V input drops below 4.4V, the 3.3V, VAUX input is switched to the output
through an internal PFET, maintaining a constant “glitch free” output voltage.
The SP6231 is ideally suited for NIC cards and portable battery powered equipment. When a
desktop computer reverts to sleep mode, its 5V bus is removed, leaving only the 3.3V bus. The
SP6231’s auxiliary output passes the 3.3V bus through, keeping the NIC card available for any
Wake-On-LAN command. In battery powered applications, the SP6231 draws power from any
available 5V USB connection and reverts to battery power when the USB power is removed.
normal operation, the SP6231 acts as a standard LDO with an output voltage of 3.3V delivering
up to 500mA. When the 5V input drops below 4.4V, the 3.3V, VAUX input is switched to the output
through an internal PFET, maintaining a constant “glitch free” output voltage.
The SP6231 is ideally suited for NIC cards and portable battery powered equipment. When a
desktop computer reverts to sleep mode, its 5V bus is removed, leaving only the 3.3V bus. The
SP6231’s auxiliary output passes the 3.3V bus through, keeping the NIC card available for any
Wake-On-LAN command. In battery powered applications, the SP6231 draws power from any
available 5V USB connection and reverts to battery power when the USB power is removed.
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