LP5900TL-2.6/NOPB

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LP5900TL-2.6/NOPB is part of the Texas Instruments Wide Vin Regulator Families, the family specifically designed for use in battery powered and other low power systems with fixed or variable outputs in the 2.6V to 6.5V range. It is a low voltage, low noise, low cost linear regulator designed to maximize battery life in portable systems. This application note covers the field of application of the LP5900TL-2.6/NOPB as well as its working principle.

Application Field

The LP5900TL-2.6/NOPB is specifically designed to provide a stable and accurate output voltage in low(er) power systems with a variable output range between 2.6V and 6.5V. It is suitable for a variety of portable applications including portable media players, digital cameras, handheld gaming devices, smartphones and other portable handheld devices. The LP5900TL-2.6/NOPB regulator is also particularly suitable for applications that require a low-voltage and low-noise output voltage. It has a low output noise of 25µVrms, which enables improved performance for critical audio applications, such as portable digital audio players.

Working Principle

The LP5900TL-2.6/NOPB uses a simple linear regulator architecture, which is based on an inherent voltage referencing mechanism. The output voltage is determined by an internal reference, and is maintained through feedback control. The device requires only a single external resistor to set the output voltage. When the output voltage is below the desired value, the device enters a mode in which it increases the output current to make up for the difference. This process effectively provides the reference voltage to maintain the output voltage.

The LP5900TL-2.6/NOPB also features a unique feature, the Pulse-by-Pulse Current Mode Limit of 1A peak, which helps protect the device from high inrush current at power up and during transient conditions. This ensures that the LP5900TL-2.6/NOPB provides stable operation in a wide variety of power supply conditions. Additionally, the device has an integrated thermal protection circuit which is designed to protect the device from overheating.

The LP5900TL-2.6/NOPB is a highly efficient linear regulator with a quiescent current (Iq) of 1.3mA. The device is able to provide an output voltage with minimal ripple, as well as low-output noise. This makes it ideal for a range of low-power applications, including portable ones which need to provide a stable output voltage with minimal noise and power draw.

Summary

The LP5900TL-2.6/NOPB is a part of the Texas Instruments Wide Vin Regulator Families. It is a low voltage, low noise, low cost linear regulator specifically designed to maximize battery life in portable systems with a variable output range between 2.6V and 6.5V. It is suitable for a wide variety of applications, including portable media players, digital cameras and handheld gaming devices. It uses a simple, linear regulator architecture and a single external resistor is required to set the output voltage. It features Pulse-by-Pulse Current Mode Limit of 1A peak, as well as thermal protection circuit, making it highly reliable and efficient in a variety of power-supply conditions.

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