APM81815 大肉大捧一进一出阿宾电影 Voltage Regulator Carriers

We are offering these carrier boards with support from Allegro Microsystems as an easy way to use or evaluate their APM81815 大肉大捧一进一出阿宾电影 voltage 大肉大捧一进一出阿宾电影; we therefore recommend referencing the APM81815 datasheet (2MB pdf) for detailed documentation of the regulator IC operation.

The APM81815 is a synchronous buck (大肉大捧一进一出阿宾电影) voltage regulator that generates lower voltages from input voltages as high as 72 V (80 V absolute maximum). They are switching 大肉大捧一进一出阿宾电影 (also called switched-mode power supplies (SMPS) or DC-to-DC converters), which makes them much more efficient than linear voltage 大肉大捧一进一出阿宾电影, especially when the difference between the input and output voltage is large. On our boards at room temperature and with no additional heat sinking or airflow, these 大肉大捧一进一出阿宾电影 can typically support continuous output currents between 0.5 A and 1.5 A, depending on the input voltage and output voltage, as shown in the graph below.

This family includes four versions, one for each output voltage supported by the APM81815:

Features

• Input voltage: 5 V to 72 V (subject to dropout considerations, 80 V absolute max)
• 2% output voltage accuracy
• Typical maximum continuous output current: 0.5 A to 1.5 A
• Typical efficiency of 50% to 95%, depending on input voltage, output voltage and load (see the efficiency graphs on the product pages)
• Switching frequency: ~1 MHz under heavy loads
• < 0.1 mA typical no-load quiescent current (see the quiescent current graph on the product pages)
• Optional enable input with precision threshold can be used for simple on/off control or to implement a custom low-voltage cutoff
• Soft-start feature limits inrush current and gradually ramps output voltage
• Short-circuit and over-temperature protection
• PCB is 4-layer, 2-oz copper for improved thermal dissipation
• Small size: 0.4″ × 0.75″ × 0.13″ (10.2 mm × 19.1 mm × 3.2 mm)
• Weight: 1.0 g

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