ADP7105ACPZ-R7

Current - Output:	500mA
Base Part Number:	ADP7105
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, Reverse Polarity
Control Features:	Enable, Power Good, Under Voltage Lockout
PSRR:	80dB ~ 50dB (10kHz ~ 100kHz)
Current - Supply (Max):	1.6mA
Current - Quiescent (Iq):	900µA
Series:	--
Voltage Dropout (Max):	0.55V @ 500mA
Voltage - Output (Max):	19V
Voltage - Output (Min/Fixed):	1.22V
Voltage - Input (Max):	20V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The ADP7105ACPZ-R7 is an advanced, low power, monolithic voltage regulator providing regulated output voltage with full circuit protection in a rugged, 5-pin miniSOIC package. It is ideally suited for low-power applications such as digital video, digital audio, USB ports, and cameras, as well as high-current applications like gate drives, embedded control, and more. Its ability to deliver high currents, together with its low power profile, makes the ADP7105ACPZ-R7 ideal for many cost-sensitive, low power and high current applications.

Application Field and Working Principle

The ADP7105ACPZ R-7 is a 3.3V or 5V linear voltage regulator for small and mid-power applications. The device is suitable for use in commercial, industrial, and depending on the application and load conditions, automotive environments. The low power characteristics of the device allow it to be used in applications that require low-power dissipation. Its internal voltage references allow the output voltage to be preset and self-regulated with excellent accuracy and stability.The device operates on the principle of linear-mode voltage regulation, in which a low-voltage reference voltage is compared with the input voltage. The output voltage is regulated to a specific value by controlling the current flowing in the pass element. The required current for regulation is determined by the difference between the input and reference voltages. As the input voltage decreases, the reference voltage is maintained, resulting in an amplified output voltage. The pass element then supplies the necessary current to maintain a constant output voltage.The device utilizes a precision, integrated linear regulator topology that offers superior performance at a low cost. It has a wide input voltage range of 2.6V to 7V, with output valve adjustable from 1.2V to 6V. Output current is rated up to 1A and power dissipation is up to 1.75W. The device also offers an adjustable VIN limit feature to limit the input voltage of the device. Additionally, it is pin compatible with other existing solutions in the market, allowing faster time to market. The device also offers over-current and thermal protection, allowing the device to sound an alarm when the output current exceeds the set limit or when its temperature reaches a critical point. This protects the device from overheating or becoming a short circuit. A soft-start feature is included to reduce inrush current at start-up and minimize the AC ripple across the input supply. The low offset design ensures an ultra-low power consumption of only 0.125µA.The ADP7105ACPZ-R7 has a wide variety of applications, such as powering digital video, digital audio, USB ports, cameras and embedded control systems. Its high efficiency and low power profile make it an ideal solution for a wide range of applications.

Conclusion

The ADP7105ACPZ-R7 is a low-cost, low-power linear voltage regulator well suited for small to mid-power applications. The device offers excellent accuracy and stability while providing protection from over-current and thermal conditions. Its wide input voltage range and adjustable VIN limit feature make it an excellent choice for many cost-sensitive, high current and low power applications. The device also provides fast time to market and its small form factor makes it an ideal solution for space-constrained designs.

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