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Partname: | MAX1534ETE |
Description: | High-Efficiency, Triple-Output, Keep-Alive Power Supply for Notebook Computers |
Manufacturer: | Maxim Integrated Products |
Datasheet: | PDF (398K). Click here to download *) |
The MAX1534 is a high-efficiency, triple-output power supply for keep-alive (always on) voltage rails. The 500mA buck regulator with an internal current-limited 0.5 PMOS steps down the battery or wall adapter supply rail to a fixed 5V or an adjustable output voltage. Two integrated low-voltage linear regulators follow this output and provide two independent preset output voltages of 3.3V and 1.8V, or adjustable output voltages. The buck regulator utilizes a peak current-limit, pulsefrequency modulation (PFM) architecture for highest light-load efficiency to conserve battery life. High switching frequencies (up to 200kHz) allow the use of tiny surface-mount inductors and output capacitors. Operation to 100% duty cycle minimizes dropout voltage (250mV at 500mA). |
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Click here to download MAX1534ETE Datasheet*) |
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