TPS62261TDRVRQ1

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Introduction

TPS62261TDRVRQ1 is a constant frequency synchronous buck converter with integrated power MOSFETs from Texas Instruments. It is part of the Texas Instruments Voltage Regulators - DC DC Switching Regulators family and is designed for use in medium-power applications.

Key Features and Benefits

• Integrated high-side/low-side N-Channel MOSFETs
• Wide input supply range: 4-32V
• Very low quiescent current (1.3uA)
• Thermal shutdown with hysteresis
• Independent SEE and SEL options
• PWM/PFM Mode selectable
• Soft start
• High efficiency
• Internal compensation
• Output voltage precision ± 2.5%
• RDSon of 0.47ohm

Application Field

TPS62261TDRVRQ1 is a highly regulated synchronous buck converter with integrated high-side/low-side power MOSFETs, suited for a wide range of application fields which includes:

• Smart handheld mobile devices
• Automotive infotainment and body electronics
• Computers & peripherals
• Audio equipment
• Networking equipment
• Healthcare equipment

Working Principle

TPS62261TDRVRQ1 is a synchronous buck converter featuring Pulse Width Modulation (PWM) control. The internal PWM controller provides a constant-frequency, current mode operation with a switching frequency of 1.2MHz. The device can operate in either PWM or PFM control mode.

The device operates by switching the integrated N-channel MOSFETs in an alternating mode (high side and low side MOSFETs are turned ON and OFF alternately). When the high side MOSFET turns ON, current starts to flow in the inductor and the input voltage is applied to the output. The output voltage is regulated by controlling the duty cycle of the high side and low side MOSFET switches.

The internal PWM control circuitry provides over-current protection, thermal shutdown with hysteresis, and other supports, ensuring stable and reliable operation of the device.

Conclusion

TPS62261TDRVRQ1 is an excellent choice for a wide range of medium-power applications from Texas Instruments’ Voltage Regulators - DC DC Switching Regulators. The device combines high-side/low-side N-channel MOSFETs, thermal shutdown with hysteresis, independent SEE and SEL options, and other features to ensure stable and reliable operation.

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