TPS76728QPWP

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	1
Voltage - Input (Max):	10V
Voltage - Output (Min/Fixed):	2.8V
Voltage - Output (Max):	--
Voltage Dropout (Max):	0.83V @ 1A
Current - Output:	1A
Current - Quiescent (Iq):	125µA
PSRR:	60dB (1kHz)
Control Features:	Enable, Reset
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	20-PowerTSSOP (0.173", 4.40mm Width)
Supplier Device Package:	20-HTSSOP
Base Part Number:	TPS76728

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Introduction
TPS76728QPWP is an integrated 3.2-A, low-dropout (LDO) linear voltage regulator from Texas Instruments. It supports a wide input range, from 2.7 V to 5.5 V and a single output range from 0.8 V to 4.15 V with a power rating up to 10 W. Its power supply rejection ratio (PSRR) is – 75 dB, typically at 1 kHz. In addition, the device features other protection features like over-temperature protection (OTP) and current limit protection (CLP).

Application Field of TPS76728QPWP
The TPS76728QPWP can be applied to various fields such range of industries, including handheld and mobile devices, laptops, computers, industrial equipment, automotive, and imaging devices across various applications like automotive stability, automotive safety, automotive radio, computer motherboards, and embedded systems. The device offers better output accuracy by providing a low output voltage noise of 1 µV RMS and very tight output tolerance of ± 1%.

Working Principle of TPS76728QPWP
The TPS76728QPWP is a low dropout voltage regulator (LDO) that uses a proprietary patented circuit configuration to achieve high PSRR, fast transient response, and low quiescent current. The device features a low-input-bias-current output stage, as well as an advanced mode-sense circuitry to reduce the quiescent current, noise, and output ripple. The device consists of an input stage with a series regulator element, a low dropout voltage regulator section, and a push–pull stage. The input stage offers good PSRR and low noise. The low dropout voltage regulator stage consists of a P-channel MOSFET, and a reset circuit, both connected in series, to adjust the output voltage according to the reference voltage. The push–pull stage enables low output noise and provides a low-impedance drive for a low output noise.The device is designed to maintain stability even in the event of an extremely fast transient load. The device is designed to achieve minimal output voltage deviation when subjected to a rapid transient load change. In addition, the device features other protection features like OVP, OCP, and OTCP that help to protect the device during an overload or a fault condition.

Conclusion
The TPS76728QPWP is a low-dropout linear voltage regulator with a high power rating of 10 W and a wide input range of 2.7 V to 5.5 V. It includes a low-input-bias-current output stage, as well as an advanced mode-sense circuitry to reduce the quiescent current, noise, and output ripple. The device provides fast transient response, low quiescent current, low output voltage noise, and very tight output tolerance. In addition, the device offers several protection features such as OVP, OCP, and OTCP, which help protect the device during an overload or a fault condition. Due to its wide range of applications and versatile feature set, the TPS76728QPWP is an ideal choice for a variety of linear voltage regulation solutions.

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