TPS73401DDCR

Current - Output:	250mA
Base Part Number:	TPS73401
Supplier Device Package:	SOT-23-5
Package / Case:	SOT-23-5 Thin, TSOT-23-5
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Control Features:	Enable
PSRR:	60dB ~ 28dB (100Hz ~ 100kHz)
Current - Quiescent (Iq):	65µA
Series:	--
Voltage Dropout (Max):	0.22V @ 250mA
Voltage - Output (Max):	6.2V
Voltage - Output (Min/Fixed):	1.25V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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TPS73401DDCR Application Field and Working Principle

The TPS73401DDCR is a high accuracy, low noise, low dropout linear regulator with a wide input voltage range of 2.25V to 17V, ideal for use in applications where a small, low power consumption regulator is required. It offers low output noise and a wide range of output voltage configurations, allowing for flexible output voltage regulation over a 1V to 16.25V range.The TPS73401DDCR is a low-power, low-noise linear regulator designed for a wide range of applications, including DSPs, microcontrollers, and high-speed data converters. The device is ideal for applications in which the minimum possible output noise is necessary, such as signal-to-noise fraction (SNR) based signal processing systems.The TPS73401DDCR is a three-terminal, low dropout (LDO) linear regulator that features low quiescent current (IQ) operation and very low output noise. The device is designed for single-supply applications that require a stable supply voltage over a wide range of temperatures. The device can be configured to operate from either a positive or a negative supply (i.e., dual voltage design) for further flexibility. Its Internal Thermal Shutdown (ITS) and short-circuit protection protects the device against thermal stress and fault conditions.The TPS73401DDCR is an ideal device for applications where noise performance and power consumption are critical. It is often used in sensitive analog and RF systems, especially in communications applications, where low output noise and low power dissipation is paramount. The device provides a wide input voltage range, allowing for operation in battery based systems. Additionally, the TPS73401DDCR features fast transient response to rapidly changing load conditions, making it suitable for high speed data converters, such as FPGAs, DSPs and ASICs.The TPS73401DDCR uses a constant-current topology, which maintains a constant output voltage regardless of load current or temperature. This type of voltage regulator typically consists of two or more transistors or a power field-effect transistor (FET). The FET is the most commonly used regulator. The FET is used as an electronic switch to control the voltage across the load. The FET is driven by a constant-current source (via a feedback loop) to control the output voltage. If the output voltage exceeds its set point, the current source responds by reducing the current to the FET, which reduces the voltage. If the output voltage drops below its set point, the current source responds by increasing the current to the FET, which increases the voltage.In the TPS73401DDCR, a voltage divider is used to regulate the output voltage. The voltage divider consists of two resistors that are placed across the output of the regulator. As the output voltage rises, it reduces the resistance of the divider. The voltage divider also acts as a feedback loop to regulate the output voltage, ensuring that the voltage stays within the specified range. The maximum output current of the device is limited by the impedance of the voltage divider, which is adjustable.In the TPS73401DDCR, the output voltage is set with an adjustable external feedback resistor. The output voltage can be set to any value between 1V and 16.25V. The device also has additional features for increased accuracy and reliability, such as short-circuit protection, thermal shutdown, and over-current protection.Overall, the TPS73401DDCR is a low-power, low-noise, low-dropout linear regulator that can be used for a wide range of applications. Its wide input voltage range, low power consumption, and precision output voltage make it an ideal choice for high speed data converters, sensitive analog and RF systems, and battery-powered systems.

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