FAN2503S30X

The FAN2503S30X is a linear voltage regulator from ON Semiconductor. It is a three-terminal adjustable regulator that offers reliable and performance with a minimum number of external components. It has an output voltage voltage-adjustable from 1.24 V to 6.6 V. This device is suitable for applications such as general variable voltage power supply, battery-powered devices, and local on-card regulation.

The FAN2503S30X is an integrated suite of three linear regulators: a step-down converter, a low-dropout (LDO) linear regulator, and a low-dropout (LDC) capacitor-less output linear regulator. The step-down converter provides the main output voltage, while the LDO and LDC linear regulators make up the auxiliary outputs. This combination of regulators provides the flexibility of the device while minimizing the number of external components required.

The FAN2503S30X is a DC/DC step-down converter and linear voltages regulator. It is capable of supplying up to 3A of output current and features a low 55mV typical dropout voltage. The output voltage is adjustable from 1.24V to 6.6V and can be set using external voltage divider resistors. The device also incorporates thermal protection and an overcurrent protection circuit to protect it from damage from an overload or a short circuit.

This device includes a Power Good output signal that indicates when the output voltage is within the specified operating region. This feature provides an indicator of system power status for monitoring purpose and for reliable power sequencing. It also includes an enable pin that can be used to put the device in a low power shutdown mode.

The FAN2503S30X is a low power device, consuming only <0.3µA in shutdown mode and 17mW in standby mode. It operates over a wide input voltage range of 2V to 7V and is available in a space saving 8-lead SOIC package. With these features, the FAN2503S30X is suitable for low voltage and cost-sensitive applications.