MAX1842EEE+T

DC/DC switching regulators are voltage regulators used to convert a voltage to another. The MAX1842EEE+T is a high-power, low-dropout (LDO) DC/DC switching regulator with integrated wide input voltage range of 2.7V to 15V. It supports a wide range of input voltages and output currents up to 3A. With its low quiescent current (IQ) of 1.1mA (typical), it is suitable for very low power applications such as measuring probes, wearable devices, and consumer electronics.

The MAX1842EEE+T consists of two integrated half bridge driver circuits that can simultaneously drive two external N-channel and two external P-channel MOSFETs. It is designed with excellent switching frequency performance from 7.5kHz to 150kHz. The internal synchronous rectifier and high-efficiency diode significantly reduce switching loss and thermal dissipation during high-frequency operation. The internal input/output overvoltage protection, programmable over-current protection, and thermal protection keep the device running safely and reliably without any external components.

The core of the MAX1842EEE+T is its precision current-mode control circuit. This circuit uses feedback from the output voltage to detect switching errors and makes corrections accordingly. It also includes circuit features such as fast transient response, stable loop control, and high accuracy-allowing the voltage regulator to convert a wide range of input voltages to a desired output voltage with high efficiency and tight load and line regulation. Furthermore, the MAX1842EEE+T enables the user to set the over-current protection limit and voltage window of the P- and N-channel MOSFETs.

The MAX1842EEE+T is a suitable power supply solution for smart metering, chargers, and LED lighting systems-all requiring a regulated output voltage with accurate current and voltage regulation. In particular, it can be used in industrial and automotive applications-where high accuracy and miniaturization are required. With its integrated digital soft start and undervoltage lockout, the MAX1842EEE+T provides added protection for the load by preventing the system from thermal-overload.

In summary, the MAX1842EEE+T is a P-/N-channel MOSFET-based low dropout switching regulator with integrated wide input voltage range. Its low quiescent current and current-mode control circuit make it suitable for a wide range of applications. In addition, the internal over-current protection and thermal protection keep the device running safely and reliably at high efficiency and wide input voltage range.