TPS76828QPWP

Current - Output:	1A
Base Part Number:	TPS76828
Supplier Device Package:	20-HTSSOP
Package / Case:	20-PowerTSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable, Power Good
PSRR:	60dB (1kHz)
Current - Quiescent (Iq):	125µA
Series:	--
Voltage Dropout (Max):	0.83V @ 1A
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.8V
Voltage - Input (Max):	10V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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Introduction to TPS76828QPWP

TPS76828QPWP is a synchronous, low-power voltage regulator designed and manufactured by Texas Instruments (TI). It is a low dropout (LDO) voltage regulator that is capable of regulating a wide range of input and output voltages. This makes it suitable for applications such as portable and power-sensitive devices that require precise voltage regulation. TPS76828QPWP specifically belongs to the PMIC (Power Management IC) family of voltage regulators, under the linear voltage regulators category.

Application Field of TPS76828QPWP

TPS76828QPWP is suitable for a wide range of applications. It offers excellent accuracy of ±0.4% greatly enhances system performance. This enables it to be used in telecommunication, automotive, industrial, and consumer applications. The TPS76828QPWP also features ultra-low quiescent current—64mV IQ at full-load current—which helps extend system battery life when used in battery-powered applications.In automotive applications, TPS76828QPWP offers a wide input voltage range of 4.8V to 36V making it ideal for today’s automotive applications which require higher input voltage ratings. The rated temperature range of -40°C to 125°C also makes it fit for most automotive applications which usually operate at high temperature environments.

Working Principle of TPS76828QPWP

TPS76828QPWP operates by taking power from the input voltage source and supplying a regulated output voltage. The LDO consists of an error amplifier and an output stage. During operation, the error amplifier compares the input and output voltages. If the input voltage is higher than the output voltage, the error amplifier will activate the output stage, switching small amounts of charge onto the output capacitor. This will increase the output voltage to the set voltage.If the input voltage is lower than the output voltage, the error amplifier will reduce the output voltage by activating the output stage and switching small amounts of charge away from the output capacitor. This will reduce the output voltage to the set voltage. This cycle continues as long as the load on the output voltage is maintained within the set parameters.

Protection of TPS76828QPWP

TPS76828QPWP provides several protection features that safeguard against fault conditions. These safety features include current limiting, thermal shutdown foldback, UVLO (under-voltage lockout) and reversible over-current fault detection and protection. For current limiting protection, the TPS76828QPWP will shut down the output stage when a current higher than the maximum rated current is detected. The thermal shutdown foldback feature limits the output current when the device temperature exceeds the rated temperature. The UVLO feature limits the output current when the input voltage falls below the threshold voltage. The reverse over-current protection (ROCP) feature monitors the output current of the device and will shut down the output stage when the current exceeds the minimum rated current. This feature helps protect the device from short circuits and other fault conditions.

Summary

TPS76828QPWP is an ideal device for use in portable and power-sensitive applications as it offers excellent accuracy and low power consumption. It can regulate a wide range of input and output voltages and is suitable for automotive, telecommunication, industrial, and consumer applications. The device features several built-in protection features, such as current limiting, thermal shutdown foldback, UVLO, and ROCP which help safeguard against fault conditions.

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