DC2453A

DC2453A is a demonstration circuit that features the LTM®4643 µModule® regulator, a high-performance high efficiency 4 output step-down regulator. The LTM4643EV has an operating input voltage range of 4V to 20V and is able to provide up to 3A out output current from each of its phases. Each output’s voltage is programmable from 0.6V to 3.3V. The LTM4643EV is a complete DC/DC point of load regulator in a thermally enhanced 15mm × 9mm × 1.82mm LGA package requiring only a few input and output capacitors. Output voltage tracking is available through the TRACK/SS pin for supply rail sequencing. External clock synchronization is also available through the CLKIN pin. The CLKOUT pin provides for synchronization of additional modules’ phases.

• 3ADC maximum continuous output current per phase
• 1.2MHz default operating frequency
• 89% efficiency at VIN = 12V, VOUT1 = 3.3V, IOUT = 3A