DC3248A

DC3248A is a DC3248A evaluation board circuit that features the LTM®4659, a high efficiency, 10A step-down power µModule® regulator. The input voltage range is from 2.25V to 5.5V. The output voltage range is 0.5V to VIN. Derating may be necessary for certain VIN, VOUT, frequency and thermal conditions. The DC3248A evaluation board offers the SSTT pin, allowing the user to program output tracking, soft start period and die temperature monitoring. The MODE/SYNC pin either synchronizes the switching frequency to an external clock, is a clock output, or sets the PWM mode. It can be externally synchronized to a clock from 1MHz to 2.6MHz. The Pulse width modulation (PWM) modes of operation are Forced continuous mode (FCM) for low noise or pulse-skipping mode (PSM) for high efficiency at light load. The LTM4659 defaults to FCM during synchronization and operates in PSM when both the FREQ and MODE/SYNC pins are connected to VIN.

• Tiny surface mount, 4mm × 4mm × 1.43mm LGA
• Silent Switcher®2 architecture
• Ultralow Electromagnetic Interference (EMI) noise
• 1V output voltage
• 10 ADC maximum continuous output current
• 2MHz operating frequency
• 82.16% efficiency at VIN = 3.3V, VOUT = 1.0V, IOUT = 10A, TA = 25°C
• 70mV load transient at VIN = 3.3V, VOUT = 1.0V, ISTEP = 0A to 2.5A, TA = 25°C