TPS7A3401DGNT

Current - Output:	200mA
Base Part Number:	TPS7A3401
Supplier Device Package:	8-MSOP-PowerPad
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	50dB (1kHz)
Current - Supply (Max):	950µA
Current - Quiescent (Iq):	100µA
Series:	--
Voltage Dropout (Max):	0.8V @ 200mA
Voltage - Output (Max):	-18V
Voltage - Output (Min/Fixed):	-1.18V
Voltage - Input (Max):	-20V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Negative
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The Texas Instruments TPS7A3401DGNT is a linear voltage regulation integrated circuit. It is used to regulate a specified output voltage with a minimum number of components involved. This voltage regulator comes in three different package types, namely LL-P, WCSP, and MSOP-2 and is ideal for applications where space is at a premium. Its versatility makes it suitable for a wide range of industrial and consumer applications such as in power supplies, wireless communication, and medical devices.

Architecture And Features

The TPS7A3401DGNT is a linear voltage regulator with an architecture that includes three primary sections. At its core is a differential amplifier which is responsible for monitoring the output voltage in a feed-forward manner and issuing an adjustment signal to the output stage when necessary. The output stage is a low-noise, low-dropout (LDO) linear regulator with adjustable current limit, enabling greater power efficiency. A control circuit completes the architecture by supplying a reference voltage and managing the output stage. The key features of the TPS7A3401DGNT include its precision output voltage regulation, high power efficiency, fast transient response time and high output current capability. It also boasts low dropout voltage and power supply rejection ratio of 65dB or better, as well as wide voltage range from 4.5V to 24V and temperature range from -40°C to 125°C.

Functionality and Performance

In terms of functionality and performance, the TPS7A3401DGNT is designed to maintain a tight output voltage regulation with accuracy better than 1%. It can supply a continuous output current of up to 1.1A and has a high ripple rejection of greater than 70dB. Furthermore, the output voltage is adjustable with a external resistor, allowing greater flexibility in various voltage regulation applications. In terms of power efficiency, the TPS7A3401DGNT utilizes a low dropout linear regulator, enabling it to operate at over 96% efficiency. Its fast transient response to line and load changes makes it especially well suited for applications such as powering cellular modems and FPGA’s.

Conclusion

The TPS7A3401DGNT from Texas Instruments is a linear voltage regulator that is suitable for a wide range of industrial and consumer applications. Its architecture includes a differential amplifier, a low-noise low-dropout linear regulator, and a control circuit for precise voltage regulation and power efficiency. Its features include high accuracy, fast response, low dropout, and power supply rejection. The TPS7A3401DGNT enables high power efficiency, flexibility and performance in a variety of voltage regulation applications.

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