LM2737MTC/NOPB

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LM2737MTC/NOPB is a 3-pin, low-dropout, wide input voltage range, step-down regulator with current-mode control, usable up to 8 MHz and providing low harmonic content switching. It is from Texas Instruments, and is classified as a DC DC switching controller from the Voltage Regulators category in Power Management ICs (PMIC).

This device is designed for small and portable applications such as cell phones, PDAs, and digital still cameras. It is an ideal device for processing images and providing an analog signal to the LCD display.

The LM2737MTC/NOPB contains an on-chip error amplifier, two resistors and two capacitors, to enable a variable output voltage of 3V to 28V with either a low drop-out or step-down operating mode. The error amplifier can be used to sense the load current and adjust the output voltage accordingly. The device offers a protection circuit for over-temperature, line under-voltage, and over-current protection.

Its input voltage range is 2V to 32V, and its maximum output current is 2A. The output voltage is adjustable via an external resistor. Typical efficiency of the LM2737MTC/NOPB is 85 - 95 %. It also features a near-zero current shutdown and power-good output when the output voltage is below or exceeds the threshold. Its operating junction temperature range is -40 °C to +125 °C, and it is available in an 8-pin soic and thermally enhanced QFN-8 packages.

The LM2737MTC/NOPB uses a pulse-width modulation (PWM) control method and low-on-resistance (R_DSON) MOSFETs, allowing it to achieve high efficiency at both light and heavy loads. The PWM modulates the master oscillator frequency and by changing the voltage on the COMP pin, adjusts the gain of the error amplifier. This allows for a fast response to load changes, making the LM2737MTC/NOPB an ideal choice for powering small, lightweight applications that require a wide input voltage range.

The LM2737MTC/NOPB is a convenient and efficient device, greatly simplifying the design process. Its wide input voltage range, high efficiency ratings, and small package size make it ideal for small, lightweight applications such as cell phones, PDAs, and digital cameras.

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