MAX763ACSA+

The MAX763ACSA+ is a 3.3V, step-down, current-mode PWM DC-DC converter in 8 pin NSOIC package. It accepts inputs from 3.3V to 11V and delivers up to 500mA with typical efficiencies of 85% to 90%. The pulse width modulation (PWM) current-mode control provides precise output regulation and excellent transient responses. Output voltage accuracy to be ±5% over line, load and temperature variations. Fixed-frequency switching allows easy filtering of output ripple and noise as well as use of small external components. A 22µH inductor works in most applications so no magnetic design is necessary. It features cycle by cycle current limiting, overcurrent limiting, undervoltage lockout and programmable soft start protection. It is used in 5V to 3.3V converters and computer peripherals.

• Oscillator frequency range from 159KHz to 212.5KHz
• Operating temperature range from 0°C to 70°C
• Quiescent current is 1.4mA
• Shutdown supply current is 0.2µA
• Typical line regulation of 0.13%/V
• Typical load regulation of 0.001%/mA
• Maximum oscillator frequency is 212.5KHz
• Reference drift is 50ppm/°C at TA = TMIN to TMAX

Applications

Power Management, Industrial

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