LMR12007YMK

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The LMR12007YMK is a step-down, monolithic synchronous DC-DC switching regulator capable of providing a regulated output current of up to 3A. It is housed in a tiny 10-pin TDFN-EP package and offers excellent overload, short circuit, and over-voltage protection features, making it ideal for use in portable and handheld devices. The output voltage can be manually adjusted from 1.2V to the input voltage.In the PMIC (Power Management Integrated Circuit) category, LMR12007YMK belongs to the Voltage Regulators, with DC DC Switching Regulators as its sub-class.This device is based on a current mode architecture which ensures precise tracking and regulation of its output current. It employs input voltage feed-forward so that wide load regulation can be achieved even under rapid load changes without any significant changes in output. It also incorporates several power-saving modes for higher efficiency, including Power-On-Reset delay, shutdown, CS (minAMP ModeTM) and sleep current.The LMR12007YMK is designed for a wide input voltage range of 2.25V to 5.5V and can support a wide range of output voltages from 1.2V to the input voltage. The LMR12007YMK also supports both synchronous and non-synchronous mode of operation with frequencies ranging from 400kHz to 2.5MHz.The LMR12007YMK\'s working principle is simple. When the input voltage is applied, the part enters the power on reset condition and waits for the input voltage to reach its nominal value. When the input voltage reaches its nominal value, the part is ready to regulate the output voltage.The step-down switching regulator consists of a reference voltage, an error amplifier, a control logic, and a synchronous switching power MOSFET. The reference voltage establishes the desired output voltage. The error amplifier amplifies the difference between the reference voltage and the output voltage and is used to control the switching of the power MOSFET. The control logic then regulates feedback from the error amplifier and ensures that the desired output voltage is maintained.The LMR12007YMK also offers several additional features to ensure proper operation and enhanced output voltage accuracy. These include forced PWM (pulse width modulation) mode for improved EMI (electromagnetic interference) performance, loop compensation for improved phase margin and load regulation, as well as a temperature compensation circuit for improved temperature operation.In summary, the LMR12007YMK is a compact, highly efficient and reliable DC-DC switching regulator capable of providing up to 3A of regulated output current in a tiny 10-pin TDFN-EP package. It offers excellent protection features, wide adjustable output voltage range, high current capability and good accuracy. As such, the LMR12007YMK is ideal for applications in portable and handheld devices.

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