TPS71733DRVR

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PMIC - Voltage Regulators - Linear

The TPS71733DRVR is a high-efficiency, low-dropout, and low-noise linear voltage regulator (LDO) allowing a total output current of 3A/1.5A synchronously with adjustable output voltage. Its wide input voltage range of 2.75V to 5.5V and its wide operating temperature range of -40°C to 125°C make it ideal for power management applications on a variety of systems. This application field requires optimum voltage regulation performance from the device over various operating scenarios. The TPS71733DRVR provides these features, which enables the device to be suitable for applications involving microcontrolers, digital signal processors, ASICs, and FPGAs.

TPS71733DRVR Working Principle

The TPS71733DRVR utilizes a series pass voltage regulator architecture that utilizes an internal P-channel MOSFET as the series pass device. The MOSFET is the key component of the voltage regulator enabling the device to control the output voltage of the device. The voltage regulator also incorporates a low-dropout voltage reference that allows for low power consumption of the device, resulting in low quiescent current. This internal P-channel MOSFET, together with the current limiting circuit, provides excellent short-circuit protection, making the device highly reliable in applications with sudden current spikes or under extreme operating condition.

The TPS71733DRVR utilizes a pulse width modulation (PWM) control principle that uses a voltage-control oscillator (VCO) to adjust the current-mode PWM frequency. This allows the device to be programmed for a wide range of output voltages by utilizing the internally fixed amplifier and externally accessible resistive network. VCO is used to generate a discreet frequency signal that is converted to a PWM signal. The output voltage is controlled by varying the duty cycle of the PWM, which acts as the proportioning component for the current-mode of control.

Features & Benefits

• Wide input voltage range (2.75V to 5.5V).
• Low-dropout voltage reference. This lowers the quiescent current, allowing the device to operate more efficiently while ensuring the lowest possible output voltage ripple.
• High-efficiency internal P-channel MOSFET. This enables the device to be suitable for applications requiring low dropout voltage and low quiescent current.
• Current-mode PWM control. This allows the device to be programmed for a wide range of output voltages.
• Internally fixed amplifier. This allows the device to maintain its output voltage independent of temperature.

The TPS71733DRVR is an excellent choice for power management applications requiring accurate voltage regulation, optimal efficiency, and wide input voltage ranges. With its wide input voltage range, low dropout current, and low quiescent current, the TPS71733DRVR is an ideal device for powering microcontrollers, digital signal processors, ASICs, and FPGAs.

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