TLV809K33DBVR Integrated Circuits (ICs)

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Introduction

The TLV809K33DBVR is a low-dropout regulator (LDO) that with its ultra-low output voltage (2.5 to 3.3V) and reset options is ideal for mobile applications. It is a PMIC-Supervisor device providing precise multi-voltage monitoring, adjustable system reset and power on/off control with minimal power dissipation. It also features low-line detect, low power, short circuit protection and over-voltage protection.

Functional Description

The TLV809K33DBVR is a CMOS low-dropout voltage regulator that offers precise voltage regulation over a wide operating temperature range. It is designed to operate from a single 2.9V to 5.5V supply voltage and can deliver up to 100mA of output current. The device has two independent outputs that can be configured as either fixed voltages or adjustable-voltage outputs using external resistors. Output voltage is adjustable from 2.5 to 3.3V. The output voltage can be monitored and compared to two external reference voltages. The device offers over-voltage, under-voltage, and output-short-circuit protections.

Features & Advantages

The TLV809K33DBVR offers several distinct features making it ideal for mobile applications. Firstly, it offers low-drop out voltage, meaning that the device can operate with very low input voltages (2.9V). Moreover, it has very low quiescent current draw even when operating in heavy and light load conditions. This makes it very efficient in battery-powered applications.The device also features adjustable reset and power-on/off options. It can monitor two fixed external reference voltages, compare them with the output voltage, and set a reset signal or disable operation accordingly. This allows it to be used in applications requiring precise voltage measurement. Additionally, the device features short-circuit protection as well as over-voltage and under-voltage protection. This helps prevent damage to the device caused by excess voltage or current.The TLV809K33DBVR also offers very low output voltage ripple, making it suitable for applications requiring clean and stable voltages.Finally, the device comes in a small, 5-pin SOT23 package and can operate over a wide temperature range (–40°C to 85°C).

Application Fields

The TLV809K33DBVR is a power management integrated circuit (PMIC) with applications in a wide range of mobile and battery-driven devices, including portable electronics, portable medical devices, and industrial control systems.It is most commonly used in systems that require precise voltage monitoring and power-on/off control. This includes systems that must be shut down before their voltage falls too low, such as medical devices, as well as systems that require advanced reset/wake up capabilities.The device’s low-drop-out voltage allows it to be used with low-voltage power supplies, making it ideal for battery-driven applications. The device’s adjustable reset/wake up capabilities also make it well-suited for applications where the system must be automatically reset or waken up when the device detects the presence of power.

Conclusion

The TLV809K33DBVR is a PMIC-Supervisor device offering adjustable system reset and power on/off control with minimal power dissipation. It is an ideal choice for mobile and battery-driven applications requiring precise voltage measurement and power-on/off control. Its features, such as low-drop-out voltage, adjustable system reset and power on/off control, low quiescent current draw, short-circuit protection, and over-voltage/under-voltage protection, make it highly suitable for mobile, industrial and medical applications. The device is packaged in a small 5-pin SOT23 package, making it well-suited for space-constrained applications.

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