TLV62569PDDCR

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The TLV62569PDDCR is a synchronous DC–DC buck regulator designed for a variety of applications, such as systems with battery-powered power sources and industrial control systems.

The TLV62569PDDCR provides up to 3A continuous current over an input voltage range of 2.3V to 5.5V and an output voltage range of 0.6V to 3.3V. The device also features an integrated soft-start, current limit, and under-voltage lockout to protect the system from damage due to excessive current draw, overvoltage, or brownout conditions.

TLV62569PDDCR Application Field

The TLV62569PDDCR voltage regulator is suitable for a variety of applications, including:

• Portable/Handheld Cellular Phone Base Station
• System with Battery-Powered Power Sources
• Industrial Control Systems
• Telecommunication Equipment
• Computer/Peripheral Equipment
• Wireless LAN/Bluetooth

TLV62569PDDCR Working Principle

The TLV62569PDDCR voltage regulator works by control the switching frequency of an integrated power MOSFET transistor. In order to maintain the output voltage at a precise level, the device monitors the feedback signal from the output and adjusts the duty cycle of its internal switch accordingly. This closed-loop feed-back mechanism ensures a stable output voltage, with only minimal deviation from the target voltage across a wide range of operating conditions.

The TLV62569PDDCR voltage regulator also employs a Soft Start function, which limits the current drawn at power-up and allows the system to come online gradually instead of being subjected to a surge of current from the voltage regulator. This prevents mechanical damage from sudden current draw, and also prevents damage to other components on the board. Additionally, the TLV62569PDDCR also features an Under Voltage Lock-Out function which will disable the voltage regulator when the input voltage falls below a predetermined level.

To ensure reliability, the TLV62569PDDCR also has a number of inbuilt safety features, such as a Thermal Shutdown circuit which will disable the voltage regulator in the event of it becoming excessively hot, ensuring the system will not suffer any damage or experience any performance issues due to excessive heat.

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