MAX1876EEG+

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The MAX1876EEG+ DC-DC switching controller is a PMIC – Voltage Regulators – DC DC Switching Controllers. It is a rated 3A stepping output plus input voltage regulator device. It is a high-performance switching controller that is used to provide extremely well-regulated output voltages with high efficiency and minimal power dissipation. It is designed for applications such as medical thermometers, handhelds, and other small battery-operated devices that require low power consumption and low cost.

The MAX1876EEG+ is a self-contained, low power consumption, and low cost device that handles a variety of output voltages from 1.2V to 5V. It uses an internal PMOS switch to ensure high efficiency and low EMI. This device is designed for high power applications, with a step size of 3A. It features two control pins, one for setting the maximum output current limit, and one for microprocessor control. Additionally, it supports soft-start and over-temperature protection.

The device includes a high-performance oscillator, which provides very accurate and repeatable margin cycle-by-cycle current limit. The device provides high accuracy, as well as excellent load and line regulation. It also includes programmable overvoltage and undervoltage protection to protect your application against power supply surges and under-voltage situations. The device operates at a switching frequency of up to 1.3MHz, providing a very low level of power output ripple. Furthermore, the device powers itself from its output current, so it does not require an external supply.

The MAX1876EEG+ has two controlled output voltage sources for providing a regulated supply voltage and current. The first temperature compensated source provides a low, constant current trip point for regulating the output voltage to a fixed level. The second current source is designed for constant peak current regulation to obtain the maximum power conversion efficiency. This source allows for a peak current to be set, and this current limit is able to be adjusted from 0.1A to 3A with accuracy of 2%.

The MAX1876EEG+ provides both programmable input voltage and output voltage limits, allowing the device to protect against both over-voltage and under-voltage conditions. The fault condition can be cleared by manually restarting the device, or it can be automatically restarted by using the Enable/Disable feature. The application is also protected against over-temperature conditions. Additionally, the device can be operated in either PWM or Pulse Frequency Modulation (PFM) mode, allowing for greater control of the regulation loop.

In summary, the MAX1876EEG+ is a high performance PMIC – Voltage Regulators – DC DC Switching Controllers designed for applications such as medical thermometers, handhelds, and other small battery-operated devices that require low power consumption and low cost with high efficiency and minimal power dissipation. Its features include an internal PMOS switch, two control pins, an internal oscillator, programmable input voltage and output voltage limits, over-temperature protection, and support for PWM and PFM modes of operation. This device is the perfect choice for applications that need low power consumption, low cost, and high efficiency.

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