MAX633ACSA+

The MAX633ACSA+ is a CMOS fixed/adjustable output, step-up switching regulator in 8 pin NSOIC package. This device preset output is 15V, step-up DC to DC converter for use in low power, high efficiency switching regulator applications. It has an on-chip low battery detection circuitry and a charge pump output for generating a negative voltage in dual supply applications. The only external components required are an output filter capacitor and a low cost inductor. This device can be set to other output voltages by adding an external voltage divider. It is used in minimum components, high efficiency DC-DC converters, portable instruments, rechargable and primary battery power conversion, uninterruptable on-board power supplies, card level multiple power conversion.

• Adjustable output with 2 resistors
• Operating temperature range from -0°C to 70°C
• Charge pump for negative output
• Switching frequency of 50KHz (typ)
• Operating current of 135μA
• 80% typical efficiency
• 5% output accuracy
• Only 2 external components (output filter capacitor, low-cost inductor)

Applications

Power Management, Portable Devices

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party