TL499ACPG4

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TL499ACPG4 is a type of range-extended, low-noise DC-DC switching regulator which is developed by Texas Instruments. It comes with an adjustable output voltage, duty cycle, clipping level, and other features which make it suitable for a wide array of applications. The TL499ACPG4 provides a compact solution for a variety of general-purpose, low voltage-level DC-DC conversion needs, such as those found in embedded systems, portable applications, automotive, or consumer electronics.

PMIC - Voltage Regulators - DC DC Switching Regulators

The TL499ACPG4 offers high efficiency, low noise, and high current output. It has a wide input voltage range (3.3V to 28V) and adjustable output voltage maximums that can reach up to 16V. It also offers a wide range of functionality such as adjustable duty cycle, output voltage accuracy of ± 0.5%, and over-temperature protection. The minimum output current is 1.25A and maximum output current is 3.5A.

The main features of the TL499ACPG4 include:

• Wide input voltage range (3.3V to 28V)
• Wide output voltage range up to 16V
• Automatic power supply sequencing
• Built-in over-temperature protection
• Wide range of protection functions
• Adjustable duty cycle
• Output voltage accuracy of ± 0.5%
• Minimum output current of 1.25A
• Maximum output current of 3.5A

Working Principle

The TL499ACPG4 is a flyback switching regulator based on the principle of Pulse Width Modulation (PWM). It consists of an high-side MOSFET and a synchronous rectifier, as well as some other components such as a control block, sense resistor, and output capacitor. The control block generates PWM signals based on the measured output voltage. The PWM signals are used to control the switching MOSFETs in a way so that the output voltage is held steady at the desired level. The sense resistor is used to sense the output current, and the output capacitor filters the output voltage.

The TL499ACPG4 includes a variety of additional features that are useful in improving the overall performance and stability of the switching regulator. These features include an adjustable soft-start circuit, an adjustable current limit circuit, an adjustable voltage limit circuit, and an integrated thermal shutdown circuit. All these features help to ensure that the switching regulator maintains its performance and stability even under challenging conditions.

Application Fields

Due to its wide input voltage range (3.3V to 28V) and adjustable output voltage maximums up to 16V, the TL499ACPG4 is suitable for a variety of different applications. These include application requiring both high current output, such as automotive and industrial applications, and low current output, such as portable devices and consumer electronics. Furthermore, the TL499ACPG4 is also suitable for a wide range of power supplies, such as embedded systems and portable particular applications.

In addition, the TL499ACPG4 is also suitable for a variety of other applications such as battery charging, solar applications, and communications systems. Furthermore, the TL499ACPG4 is a reliable voltage regulator, making it suitable for applications which require precise and consistent voltage levels, such as those found in medical devices.

The TL499ACPG4 is the ideal choice for a wide range of general-purpose, low voltage-level DC-DC conversion needs. With its range-extended, low-noise performance, and various protective functions, it can deliver reliable performance even in challenging conditions.

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