TPS62040DGQRG4

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TPS62040DGQRG4is a DC-to-DC synchronous buck switchingregulator in the PMIC - Voltage Regulators - DC DC Switching Regulatorscategory. It offers market-leading low solution size and excellentefficiency for applications requiring low-voltage, high-current outputs.TPS62040DGQRG4 has an adjustable step-downoutput voltage of 0.6 V to 4.2 V and an input voltage range of 2.7 V to7.5 V. Furthermore, the device features a wide range of other featuresincluding output current capability up to 4 A, a programmable soft-start,programmable inductor DCR compensation, current-limit protection, hiccupmode protection, and output voltage tracking.

TPS62040DGQRG4 application fields are varied, including cellular phones and other portable devices, such as portable media players, digital still cameras, Global Positioning Systems (GPS) and point of sale terminal. It also can be used in notebook and desktopcomputer applications such as ASICcore voltage generation, peripheralrail power supply, motor controllers, and communication modules.

TPS62040DGQRG4 adopts a synchronous buck architecture with a peak current mode controlloop. Its P-channel synchronous MOSFETs on the high side and N-channel MOSFETon the low side provide efficient conversion performance. In combination withthe excellent current loop characteristics, this device is a great choice forhigh-efficiency systems.

The device is also equipped with a programmable soft-start feature that can be used to ramp up the output in a controlled manner. Additionally, to optimizethe output voltage accuracy over temperature, the device also includes anadjustable voltage tracking feature. The device includes an internal PORcircuit which monitors the input and output voltages, ensuring safe startupconditions for the device.

For additional protection, the device comes with an over-current protection (OCP) circuit. This protection circuit monitors the current in both thehigh side and low side MOSFETs and will respond and shut the device down ifthe current on either of the MOSFETs exceeds the maximum limit. The devicefurtherincludes an hiccup mode protection to protect against input and/or outputvoltagesin excess of the device specifications.

To sum up, TPS62040DGQRG4 is a high-efficiency, small-form-factor switching regulator. It is designed for applications requiring low voltage and high current, andhas numerous features to help ensure that it operates reliably and safelywithin its specified operating conditions. With its adjustable output voltageand current capability, this device is the ideal choice for a variety of lowpower applications.

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