LM2670SD-5.0/NOPB

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The LM2670SD-5.0/NOPB is a monolithic DC/DC switching regulator that operates from a 4.75V to 36V input and provides a 5.0V output at up to 3A. This device integrates a switching MOSFET, oscillator, PWM comparator, error amplifier, and output driver, thereby minimizing the total number of external components required in the design of a switching regulator.

This device is widely used in applications such as energy harvesting, industrial, communications, computer and consumer electronic, mobile wireless, and automotive infotainment systems. It has a wide range of features, including internal soft-start, output short-circuit protection, cycle-by-cycle current limiting, thermal shutdown and power good signaling.

The LM2670SD-5.0/NOPB is a synchronous step-down switching regulator, which utilizes a voltage-mode control. The device regulates the output voltage from an input voltage range of 4.75V to 36V. PWM operation rate is adjustable under the control of an internal synchronous oscillator. The oscillator frequency is set to 1kHz by default and is programmable to 2.2kHz with an external resistor. The output voltage is adjustable between 0.8V and 5V. In addition, the device features a pulse-width modulation (PWM) signal output for monitoring purposes.

The onboard high-side MOSFET is a P-channel device with an internal current limit of 3A. It provides a maximum duty cycle of up to 93%. The device also provides soft-start, cycle-by-cycle current limiting, and thermal shutdown protection. To improve efficiency, the LM2670SD-5.0/NOPB utilizes a synchronous P-channel/N-channel MOSFET structure for its power switch, allowing for significantly improved efficiency.

The LM2670SD-5.0/NOPB supports a wide range of input and output voltages and includes multiple features to reduce component counts and improve performance. The device\'s Maximum Power Point Tracking (MPPT) circuit automatically adjusts the output voltage to maximize the available power from the input source. The output current can be monitored via an integrated integrated current sense amplifier, or external sense resistors.

The LM2670SD-5.0/NOPB provides excellent transient response and accurate output voltage regulation. Its compensation network can be optimized for a given application through external component selection. The device also supports power saving modes, allowing it to reduce its quiescent current when there is no load.

The LM2670SD-5.0/NOPB is the perfect DC/DC switching regulator for applications that require a flexible and efficient solution for powering low-voltage, high-current circuits. With its wide input and output voltage ranges, integrated protection features, and excellent response and accuracy, the LM2670SD-5.0/NOPB is the ideal choice for a wide range of applications.

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