ADM7170ACPZ-3.0-R7

Current - Output:	500mA
Base Part Number:	ADM7170
Supplier Device Package:	8-LFCSP-WD (3x3)
Package / Case:	8-WFDFN Exposed Pad, CSP
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable, Soft Start
PSRR:	60db ~ 20dB (100kHz ~ 1MHz)
Current - Supply (Max):	5.1mA
Current - Quiescent (Iq):	2mA
Series:	--
Voltage Dropout (Max):	0.7V @ 500mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The ADM7170ACPZ-3.0-R7 is a voltage regulator IC from the category of PMIC (Power Management ICs) and a part of their Linear Voltage Regulators range in their product portfolio. This specific device is a low-power, low-dropout (LDO) voltage regulator which utilizes a PNP-based linear regulator architecture. This IC is capable of regulating minimum output voltage of 0.8V with a maximum output voltage of 3.0V. It is capable of regulating output current up to 250mA and provides a voltage dropout of typically 300mV at full load. ADM7170ACPZ-3.0-R7 has two the two pins connected in parallel, INV and out, where OUT supplies regulated output and INV provides control functions. It features an accurate start up current of 1µA that can be used with on/off control, overvoltage detector and a DAC controllable current limit. The exceptional accuracy in output voltage regulation, low noise and good transient performance provided by this IC are useful in various applications.

Application Field

The ADM7170ACPZ-3.0-R7 is a low-power, precision voltage regulator designed to provide excellent accuracy in output voltage regulation and low noise. It is widely used in consumer electronics, medical, automotive, telecom and industrial applications. This device is the best choice for providing limited output voltage with highest accuracy, lower dropout voltage and improved transient response. In consumer electronics, the ADM7170ACPZ-3.0-R7 is widely used for powering peripherals like touchscreen, cameras and other components. The outstanding low dropout voltage and output voltage accuracy of this device is highly suitable for these applications. Similarly, it is widely used in medical equipment for powering of multiple loads with different voltages. This device also finds its application in automotive systems, GPS, satellite radios and other automotive electronic components. It is also used in telecom systems for providing low power, low noise supplies to multiple circuits in control and power ICs. Lastly, the ADM7170ACPZ-3.0-R7 is widely used in industrial control systems, test and measurement equipments, factory automation and similar applications.

Features and Working Principle

The ADM7170ACPZ-3.0-R7 is a PNP-based linear voltage regulator with a low dropout voltage of typically 300mV. The device has three tabs for providing OUT, INV and GND. OUT provides regulated output voltage and INV includes control functionalities like on/off control, overvoltage detector, DAC control and current limit.The device feature a typical start-up current of 1µA over the entire temperature range for proper device operation. It also has a unique current limit feature that can be enabled or disabled as per application requirement. The device can also be shut down, reducing the current consumption to typically 1µA. The device has a maximum output current of 250mA and output voltage range of 0.8V to 3.0V. The rest of the features of this IC include an overvoltage detector, undervoltage detector, thermal shutdown and analog control capability.

Conclusion

The ADM7170ACPZ-3.0-R7 is a low-dropout linear voltage regulator that offers outstanding accuracy in output voltage regulation, lower dropout voltage and improved transient response making it an ideal solution for consumer electronic, telecom and industrial applications. The features of the IC include a low start up current, low drop out voltage and current limit feature, which can be enabled or disabled as required, making the device suitable for powering peripheral devices and control ICs.

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