LMR14030QDPRTQ1

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The LMR14030QDPRTQ1 is a low-voltage Integrated-Switch DC-DC Regulator by Texas Instruments. It is a member of the Llama family of DC-DC regulators and is categorized under the PMIC (Power Management IC) Voltage Regulators, DC DC Switching Regulators. The device has a broad range of applications, mainly used for powering small-scale consumer electronics and various portable devices.

The purpose of the LMR14030QDPRTQ1 is to convert low input voltages (such as from one-cell Lithium-ion batteries) to higher output voltages while regulating power transfer and maintaining efficiency throughout the process.

The LMR14030QDPRTQ1 consists of two channels: an input and an output. The input voltage is used to power the integrated switching regulator, while the output is a regulated output voltage adjusted via an external control voltage. The LMR14030QDPRTQ1 is designed to offer a high switching frequency and low output voltage ripple, while operating in a wide input voltage range. It has an adjustable voltage range of 1.5V to 4.5V, with a maximum output current up to 1.2A and a peak output current of 3A. The device has a high efficiency of up to 91%.

The working principle of the LMR14030QDPRTQ1 is based on the control loop. The device features low output voltage ripple and is designed to operate at a high switching frequency. The integrated switch is designed to be driven by the output of the error amplifier so that the transfer function is always a fixed ratio. This ensures a constant output voltage, as well as a low output voltage ripple.

The control loop of the LMR14030QDPRTQ1 utilizes a PLL (phase-locked loop) to achieve high loop gains. A reference voltage is derived from the VVOUT pin which is compared with the feedback voltage at the VOUT pin in order to regulate the output voltage. The error amplifier is used to compare the reference and feedback voltages, and the output of the error amplifier is converted to a PWM (pulse width modulation) signal for driving the integrated switch.

The LMR14030QDPRTQ1 also features built-in protection features to prevent overvoltage, short-circuit and over-temperature conditions. The device also has a 2-EN input pin to enable/disable the device, as well as an enable/disable output pin. The device is designed to operate in a wide temperature range.

The applications of the LMR14030QDPRTQ1 are wide and varied, but mainly used for powering small-scale consumer electronics and various portable devices. Due to its small package size and low thermal design power, it is becoming increasingly popular in embedded systems and home appliances.

In conclusion, the LMR14030QDPRTQ1 is a low-voltage Integrated-Switch DC-DC Regulator by Texas Instruments for a wide range of applications. It is categorized under the PMIC (Power Management IC) Voltage Regulators, DC DC Switching Regulators, and features a high efficiency combined with a high switching frequency, low output voltage ripple, an adjustable voltage range of 1.5V to 4.5V, and various built-in protection features. Thanks to its small package size and low thermal design power, it has become increasingly popular in embedded systems and home appliances.

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