TPS76130DBVT

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TPS76130DBVT Application Field and Working Principle

TPS76130DBVT is a linear voltage regulator in the PMIC – Voltage Regulators – Linear category, which is a 3-terminal low-dropout (LDO) voltage regulator with multiple output voltage options and can support up to 250mA. This voltage regulator utilizes an advanced CMOS design to provide maximum efficiency and excellent ripple rejection over a broad range of output current and input and output voltage ranges.

The TPS76130DBVT is designed to have an output voltage in the range from 1.2V to 7V and operates over a wide input voltage range from 2.5V to 7V. It has a low dropout voltage (only 260 mV at full load) which permits it to be used as a step-down regulator in portable applications since it can run from a single cell Li-Ion battery. The voltage regulator also features 500mV UVLO (Under Voltage Lock Out) protection that prevents the device from turning on until the output voltage reaches 500mV.

The TPS76130DBVT is an ideal choice for applications with high current consumption and low output voltage requirements. It is suitable for use in battery operated devices, microprocessor power supplies, signal conditioning and voltage scaling, as well as other high current, low voltage applications. The TPS76130DBVT features fast transient response and high power supply rejection ratio (PSRR), making it suitable for applications that require regulated power with minimum noise or interference.

The working principle of the TPS76130DBVT is simple and relies on a series of internal MOSFETs to regulate the output voltage. When power is applied, the internal switch is turned on and a potential difference is created across the load. When the load is disconnected, the internal switch is designed to keep the output voltage constant. The internal output transistor is connected to the output from the internal MOSFET and the output voltage can be adjusted by adjusting the width of the pulse width modulation (PWM) signal from the MOSFET.

The TPS76130DBVT is also equipped with over voltage protection (OVP) and thermal shutdown protection for safe and reliable operation. OVP shuts down the regulator when the output voltage exceeds its maximum current level, while thermal shutdown protects the device from overheating. The regulator also includes short circuit and reverse polarity protection. The device is specified over the –40 to 125 °C extended temperature range.

In summary, the TPS76130DBVT is a linear voltage regulator that features a wide input voltage range, a low dropout voltage and good ripple rejection, making it well suited for high current applications. It has fast transient response and a wide variety of protection features, making it a reliable and safe choice for use in battery powered portable devices and microprocessor power supplies.

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