TPS622313DRYR

Voltage - Output (Min/Fixed):	1.3V
Base Part Number:	TPS622313
Supplier Device Package:	6-SON (1.45x1)
Package / Case:	6-UFDFN
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	3MHz
Current - Output:	500mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	6V
Voltage - Input (Min):	2.05V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The TPS622313DRYR is a DC-DC switching regulator with up to 0.55 A output current and voltage accuracy from +/- 0.8% of set voltage. It has been designed for use in industrial and automotive applications, and is one of Texas Instruments\' latest switchers for small, compact designs.

Features

The main features of the TPS622313DRYR are its low quiescent current, lossless current sensing, high frequency switching capabilities, integrated protection, and easy-to-use design.Low quiescent current allows for long battery life and energy savings, while the lossless current sensing can detect input current overloading, potentially preventing over-drawn current. The integrated protection circuitry prevents the device from under-drawing current and ensures the safe operation of the switch in harsh environment.The package size is very small (1.6mm x1.6mm) and supports a variety of output voltages, allowing the design of very small and light systems. The integrated high-frequency switching capabilities enable the implementation of high-efficiency designs, resulting in improved system performance.

Functional Description

The TPS622313DRYR is an integrated, synchronous DC to DC step-down converter. It is designed for use as a point-of-load (POL) regulator but can be used as a stand-alone voltage regulator. The TPS622313DRYR contains an oscillator circuit, a PWM comparator, an output low side MOSFET, and current limit circuitry. When enabled, the oscillator circuit generates an internal clock signal that is used to synchronize the other circuits. The PWM comparator receives an external control voltage from an external reference, in contrast to the integrated ones in other converters, and adjusts the duty cycle of the output power switch accordingly.The current limit circuitry senses the output current and prevents damage in case of an overload. The output low side MOSFET is capable of sustaining the targeted output current for up to 0.55A and up to an input/output ratio of 1.6V.

Application Field

The TPS622313DRYR is suitable for a wide variety of applications, including automotive systems, industrial power systems, and non-isolated point-of-load (POL) regulators. In automotive systems, the regulator can be used to control a brushless DC motor in power windows, door locks, and sunroofs, or in audio systems. In industrial power systems, the regulator can be used to provide a low power output without the need for an isolation transformer, allowing high efficiency operation.The TPS622313DRYR is also suitable for high-voltage, distributed power systems in applications, such as server power supplies and telecom equipment, where the need for point-of-load regulation is essential. Additionally, the TPS622313DRYR can be used in battery chargers, LED drivers, medical devices, and other low power applications.

Conclusion

The TPS622313DRYR is a high-frequency DC-DC Switcher specifically designed for use as a point-of-load regulator in industrial and automotive applications. It features a low quiescent current, lossless current sensing, and integrated protection, which make it suitable for operation in harsh environments. It\'s small size and wide variety of operating voltages make it an ideal choice for small designs that require high efficiency.

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