TPS73213DBVT

Current - Output:	250mA
Base Part Number:	TPS73213
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Short Circuit, Reverse Polarity
Control Features:	Enable
PSRR:	58dB ~ 37dB (100Hz ~ 10kHz)
Current - Supply (Max):	950µA
Current - Quiescent (Iq):	550µA
Series:	--
Voltage Dropout (Max):	0.15V @ 250mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.3V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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introduction

The TPS73213DBVT, manufactured by Texas Instruments, is a low voltage linear voltage regulator (LVR) for applications where a very low quiescent current and high power conversion efficiency is desired. This LVR features a wide input voltage range, an internal frequency compensation and a low dropout voltage. The TPS73213DBVT is designed for battery-powered, cost-sensitive portable systems such as cell phones, handheld and battery-operated toys, and other portable consumer electronics. Its wide input voltage range and low quiescent current makes it an ideal choice for systems using small batteries or energy harvesting sources. This discussion will look at more details about the application field and working principle of the TPS73213 DBVT.

Application Field

The TPS73213DBVT LVR operates over a wide input voltage range, making it suitable for a wide range of battery-powered, cost-sensitive applications. It is designed for embedded systems, portable and wearables such as medical handheld devices. It is also suitable for energy harvesting systems, providing a power source for sensors that are powered by low voltage sources such as solar cells, thermopiles, or induction coils.This LVR supports both voltage step-down and step-up configurations. It features an adjustable output voltage, making it ideal for applications where a variable output voltage is required. It also features a built-in internal frequency compensation, providing improved transient performance. The operating temperature range is -40°C to +125°C, making it suitable for both consumer and industrial applications.

Working Principle

The TPS73213DBVT is a low voltage linear voltage regulator (LVR), which uses an external field effect transistor (FET) as an input stage to regulate the output voltage. The LVR also features an internal voltage reference, a low dropout voltage, and a low quiescent current, all of which help ensure high power conversion efficiency at virtually any input voltage. The LVR’s wide input voltage range makes it ideal for battery-powered applications, where the operating voltage range can vary widely depending on the battery type and age. The low quiescent current reduces power consumption in these applications, reducing the overall battery life. The low dropout voltage also means that the LVR is able to maintain a high power conversion efficiency even when the input voltage is much lower than the output voltage.When the input voltage drops below the output voltage, the LVR’s FET begins to reduce the current flowing through the circuit. This reduces the output voltage and helps maintain a high power conversion efficiency even at very low input voltages. The LVR is able to provide a regulated output voltage in this way, and the output voltage remains constant regardless of the input voltage. The LVR also features built-in undervoltage and overvoltage protections that detect when the input voltage drops too low or rises too high, helping to protect the circuit from damage.

Conclusion

The TPS73213DBVT from Texas Instruments is a low voltage linear voltage regulator that is ideal for battery-powered, cost-sensitive portable systems. It is designed for applications such as embedded systems, portable and wearables, and energy harvesting systems. The LVR offers a wide input voltage range, an adjustable output voltage, and low quiescent current for improved power conversion efficiency. It also features built-in overvoltage and undervoltage protection for additional safety.

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