TPS76528D

Current - Output:	150mA
Base Part Number:	TPS76528
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm 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:	63dB (1kHz)
Current - Quiescent (Iq):	50µA
Series:	--
Voltage Dropout (Max):	0.33V @ 150mA
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:	Active
Packaging:	Tube

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Introduction

TPS76528D is a 3 Pin low dropout (LDO) low noise voltage regulator that operates within a wide 2.5V – 6V input voltage range. The deviceby Texas Instruments is characterized by stable output voltage with very low load and line regulation values, the reference voltage accuracy is +/- 2%, well-maintained ripple rejection and a quiescent current of 2 mA. The output current up to 300 mA and the output voltage accuracy of +/- 0.8% can be set externally. The device also includes an enable pin that allows the LDO to be enabled or disabled by a logic signal.

Applications of TPS76528D

The TPS76528D is used in many digital and analog circuit designs. It is suitable for use in portable applications for smart phones, handheld digital devices and other devices operating in low voltage and low current environments. It is also used in computer systems, networking and storage solutions, as well as digital set top boxes, gaming systems and television receivers.Its features, such as its low quiescent current, wide input voltage range and low dropout voltage, make it suitable for power supply designs for micro processors and analog ICs. Additionally, the device can be used to provide isolation and protection for circuit components and to reduce EMI/RFI noise generated by switching power supplies and other applications.

Working Principle of TPS76528D

The TPS76528D is based on a voltage feedback control topology with an external reference (REF) allowing control of the output voltage. It converts an input voltage to a regulated output voltage and can provide a high level of current up to 300mA, and its main function is to produce a stable output voltage.The TPS76528D operates in two different modes depending on the operating conditions:In normal operation, the reference voltage is regulated and produces an output voltage across the load. An internal error amplifier monitors the output voltage and adjusts the reference voltage, which is proportional to the difference between the reference voltage and the output voltage.In the dropout mode, when the input voltage decreases, the output voltage will drop to a certain level, the output voltage is maintained at a certain level by increasing the internal reference voltage.

Conclusion

The TPS76528D is a 3 Pin, low noise voltage regulator designed for applications requiring high precision and accuracy. It features a wide input voltage range, low dropout voltage and high current capacity. Its features, including its low quiescent current, low dropout and wide input voltage range make it suitable for low voltage and low current power supply design. Additionally, the device can be used to provide isolation and protection for circuit components and to reduce EMI/RFI noise generated by switching power supplies and other applications.

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