NCP81234MNTXG

The NCP81234MNTXG from ON Semiconductor is a versatile dual-channel or two-phase synchronous buck controller designed for flexible power management solutions. It supports DrMOS applications and operates at high switching frequencies up to 1.2 MHz, enabling the use of smaller inductors and capacitors.

Key electrical specifications include a wide input voltage range of 4.5V to 20V with input feedforward, and an adjustable output voltage from 0.6V to 5.3V. The device features an integrated 5.35V LDO and operates with a switching frequency adjustable from 200 kHz to 1.2 MHz. It supports PWM output compatibility with 3.3V and 5V DrMOS, DDR power mode, and interleaved operation.

This controller offers advanced control features such as differential current sense compatibility, two independent enables with programmable UVLO, programmable DrMOS power ready detection, and two power good indicators. It also includes comprehensive fault indication and protection mechanisms like programmable soft start, delay time, hiccup over-current protection, hiccup under-voltage protection, recoverable over-voltage protection, hiccup over-temperature protection, and thermal shutdown protection.

The NCP81234MNTXG is supplied in a 28-QFN (5x5 mm) package with an exposed pad, suitable for surface mount applications. It is designed for typical applications in telecom, server and storage systems, multiple rail systems, and DDR applications.