TPS76815QDG4

Current - Output:	1A
Base Part Number:	TPS76815
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:	60dB (1kHz)
Current - Quiescent (Iq):	125µA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.5V
Voltage - Input (Max):	10V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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TPS76815QDG4 Application Field and Working Principle

The Texas Instruments TPS76815QDG4 is a low-power single-channel voltage regulator with a wide operating range, high accuracy, and low quiescent current. It belongs to the PMIC - Voltage Regulators - Linear category. This application note explores the applications and working principles of the TPS76815QDG4 voltage regulator.

Features

The TPS76815QDG4 is a highly integrated low-power single-channel voltage regulator that offers system designers a high level of integration and design flexibility. It offers a wide input voltage range of 2.7V to 5.25V and some of its key features are:

• Output voltage range of 0.6V to 3.3V
• High output current of up to 400mA
• High output accuracy of ±0.6%
• Low quiescent current of 100µA (typical)
• Integrated power-on reset and over-voltage protection
• 2- and 3-layer printing methods

The voltage regulator is available in a 5-pin SC-70 package, making it ideal for space-limited applications.

Applications

The TPS76815QDG4 voltage regulator is ideal for applications where space is at a premium and where low-voltage, high-current applications require accurate voltage regulation. It is especially suitable for consumer electronics, such as mobile phones, tablets, laptops, and even automotive applications. Its low input voltage range of 2.7V to 5.25V and its high output current of up to 400mA makes it suitable for those applications that require tight regulation of supply voltages. Additionally, the TPS76815QDG4 voltage regulator can be used in automotive applications where it can be used to step up and down various voltage levels. It is used in applications such as ASICs, DDR RAMs, and MOSFETs in order to supply the necessary power levels.

Working Principle

The TPS76815QDG4 voltage regulator uses a pulse width modulated (PWM) control scheme to regulate the output voltage more accurately. In this method, the input voltage is compared with a reference voltage using an error amplifying comparator. The reference voltage is set by an internal voltage divider and the output of the error amplifier is used to drive a MOSFET switch.The switch is alternately turned on and off, generating a pulse width modulated (PWM) signal. This PWM signal is filtered using an LC filter, producing a steady output voltage at the desired voltage level. The pulse width of the PWM can be adjusted via an internal voltage regulator to achieve the desired voltage accuracy.The TPS76815QDG4 also employs an over-voltage protection, power-on reset, and thermal shutdown protection in order to ensure reliable operation and prevent damage to the device.

Conclusion

The TPS76815QDG4 voltage regulator is a low-power, single-channel voltage regulator that offers system designers a high level of integration and design flexibility. Its wide input voltage range, high output current, and low quiescent current make it suitable for a wide range of mobile, consumer electronics, and automotive applications. Additionally, its PWM-based control scheme and integrated protection features ensure reliable operation and high levels of accuracy.

The specific data is subject to PDF, and the above content is for reference

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