ADM7155ACPZ-02-R7 Integrated Circuits (ICs)

Current - Output:	600mA
Base Part Number:	ADM7155
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
PSRR:	94dB ~ 61dB (1kHz ~ 1MHz)
Current - Supply (Max):	10mA
Current - Quiescent (Iq):	7mA
Series:	--
Voltage Dropout (Max):	0.21V @ 600mA
Voltage - Output (Max):	2.4V
Voltage - Output (Min/Fixed):	1.2V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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ADM7155ACPZ-02-R7 Application Field and Working Principle

ADM7155ACPZ-02-R7 is a linear voltage regulator manufactured by Analog Devices. It is a compact voltage regulator that is able to provide up to 1.5A output current. It is a fixed positive and negative 6V regulator featuring a low dropout voltage, over-voltage protection, short-circuit protection, and low power dissipation. The device is available in 1.5V - 3.3V and 5V output voltage versions.

Applications of ADM7155ACPZ-02-R7

ADM7155ACPZ-02-R7 is commonly used in applications such as communication systems, industrial systems, medical electronic equipment, and automotive electronic devices. Communications systems typically use the device to reduce noise and ensure consistent performance. For industrial systems, the device ensures a stable voltage for sensitive components that require constant voltage. In medical electronic equipment, the device eliminates fluctuations and provides a reliable power source for precision equipment. Automotive electronic devices make use of the device to regulate voltage and guarantee the safety of electronic systems.

Working Principle of ADM7155ACPZ-02-R7

The ADM7155ACPZ-02-R7 operates using a voltage divider principle to regulate the output voltage. The device is composed of two internal precision resistors, an error amplifier, and an output transistor. It is able to regulate the output voltage to a precise level by comparing the output voltage with an internal reference voltage. When the output voltage rises, the error amplifier increases the base-emitter voltage of the output transistor, which causes the transistor to saturate. This reduces the load current and the output voltage settles at a steady state. If the output voltage drops, then the error amplifier reduces the base-emitter voltage of the output transistor, allowing the transistor to conduct more current and increasing the load current. The output voltage rises and reaches a steady state.

Conclusion

The ADM7155ACPZ-02-R7 is a linear voltage regulator manufactured by Analog Devices. It is ideal for communication systems, industrial systems, medical electronic equipment, and automotive electronic devices. The device is able to provide up to 1.5A output current and is able to regulate the output voltage to a precise level. The device operates using a voltage divider principle to regulate the output voltage and features over-voltage protection, short-circuit protection, and low power dissipation.

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