ADP7118ARDZ-5.0

Current - Output:	200mA
Base Part Number:	ADP7118
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 (TA)
Protection Features:	Over Current, Over Temperature
Control Features:	Enable, Soft Start
PSRR:	88dB ~ 50dB (10kHz ~ 1MHz)
Current - Supply (Max):	320µA
Current - Quiescent (Iq):	140µA
Series:	--
Voltage Dropout (Max):	0.42V @ 200mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	20V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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• ADP7118ARDZ-5.0 application field and working principle

ADP7118ARDZ-5.0 is a low power, low dropout (LDO) linear voltage regulator. The device provides an adjustable output voltage from 1.2V to 3.6V and contains an on-chip N-channel MOSFET to limit inrush current on start-up. This device is suitable for a wide range of power management applications for on-board or in-system power supplies. This device is characterized for operation from –40°C to +125°C.ADP7118ARDZ-5.0 is a linear voltage regulator that uses fixed resistor feedback to regulate its output voltage. While the regulator is in operation, it compares the regulated output voltage to a fixed reference voltage (typically 1.2 V or 1.25 V) and tries to maintain that voltage by varying the file current. This variation of the file current is based on the change in the load current, thus the regulator tries to maintain the output voltage constant regardless of changes in the load current.The main features of ADP7118ARDZ-5.0 include low dropout voltage, low quiescent current, adjustable output voltage, fast transient response, excellent PSRR and accuracy, low shutdown current, and shutdown control. The low dropout voltage of the device allows it to maintain high power output efficiency even with very low input-output differential voltages.The device also features a programmable power up sequence. When a high-voltage signal is applied to the device, it automatically performs a power-up sequence in which the output voltage is gradually ramped up to the set value. This feature helps prevent inrush current and hot-start conditions on start-up.The device is also protected against short circuit, over current, and over temperature conditions. The short circuit protection limits the output current to a safe value while the over temperature protection shuts down the device when the temperature exceeds a certain threshold.The ADP7118ARDZ-5.0 linear voltage regulator is ideal for, applications where space constraints are an issue as well as applications that require high efficiency operation. Its low power consumption, low dropout voltage, and programmable power up sequence make it ideal for battery powered systems or systems where the input voltage is limited or poorly regulated.

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