ADP7105ARDZ-3.3

Current - Output:	500mA
Base Part Number:	ADP7105
Supplier Device Package:	8-SOIC-EP
Package / Case:	8-SOIC (0.154", 3.90mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable, Power Good, Under Voltage Lockout
PSRR:	60dB ~ 50dB (10kHz ~ 100kHz)
Current - Supply (Max):	1.6mA
Current - Quiescent (Iq):	900µA
Series:	--
Voltage Dropout (Max):	0.55V @ 500mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
Voltage - Input (Max):	20V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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Introduction

The ADP7105ARDZ-3.3, designed and manufactured by Analog Devices Corporation, is a Linear Voltage Regulator Power Management Integrated Circuit (PMIC). It is a low dropout (LDO) 3.3 volt regulator with an operating range of 2.65 to 5.5 volts and is capable of supplying up to 1.5 amps of current output. This particular model is designed to operate from a single 2.65V to 5.5V input rail.

Application Field of ADP7105ARDZ-3.3

The ADP7105ARDZ-3.3 regulator has been designed primarily for applications that require low battery drain and noise operation, such as audio and video equipment, cellular phones, and handheld personal electronic equipment. It is well suited for applications that require portable power, such as battery powered instrumentation, medical and wearable devices, and wireless communication.Additionally, the ADP7105ARDZ-3.3 is well suited for use in low-power DC/DC converters. This particular model has a high power efficiency when used as a synchronous rectifying buck regulator.Operating from a battery, the ADP7105ARDZ-3.3 can simultaneously provide the regulated 3.3V and 5V with low Dropout voltage. Additionally, the ADP7105ARDZ-3.3 is designed to provide low noise operation and low ripple, making it ideal for applications that require clean power.

Working Principle of ADP7105ARDZ-3.3

The ADP7105ARDZ-3.3 works by regulating a single input voltage to a precise output voltage. This is achieved by connecting a power transistor between the input voltage and the output voltage. The power transistor is driven by a control circuit such that the output voltage remains regulated at the desired output level.The control circuit monitors the output voltage and uses error-amplification technology, which adjusts the power transistor drive circuit to keep the output voltage at the predetermined level. This type of circuitry is known as a voltage regulator.The ADP7105ARDZ-3.3 regulator has a wide temperature operating range of -40oC to +125oC, making it suitable for use in a wide variety of environmental conditions. Additionally, the ADP7105ARDZ-3.3 has built-in protections from over current and over temperature.

Conclusion

The ADP7105ARDZ-3.3 is a Linear Voltage Regulator PMIC designed and manufactured by Analog Devices Corporation. It is a low dropout 3.3V regulator capable of supplying up to 1.5A of current output. It is designed for applications that require low battery drain and noise operation, such as audio and video equipment, cellular phones, and handheld personal electronic equipment. Additionally, the ADP7105ARDZ-3.3 can be used in low-power DC/DC converters and is well suited for battery-powered applications. Its control circuit uses error-amplification technology to adjust the power transistor drive circuit and keep the output voltage at the predetermined level.

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