ST715PUR

Current - Output:	85mA
Base Part Number:	ST715
Supplier Device Package:	8-DFN (3x3)
Package / Case:	8-VDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	62dB ~ 45dB (100kHz ~ 1kHz)
Current - Supply (Max):	6.5µA
Current - Quiescent (Iq):	5.5µA
Series:	--
Voltage Dropout (Max):	1V @ 85mA
Voltage - Output (Max):	23V
Voltage - Output (Min/Fixed):	1.2V
Voltage - Input (Max):	24V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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ST715PUR application field and working principleThe ST715PUR is a very low drop voltage regulator from STMicroelectronics, designed for applications requiring an adjustable output voltage. With a very low dropout voltage and current limitation, this device is extremely well suited for use in systems where power dissipation is critical.The ST715PUR is available in two package types, an 8-pin SOIC (small outline integrated circuit) and a 14-pin SOIC. This device has a maximum output current of 1.5 A and operates over a temperature range of -40 °C to +125 °C.The ST715PUR is ideal for applications where high efficiency is required, such as battery powered devices. It has very low dropout voltage and current limitation, ensuring maximum power efficiency. With its low dropout voltage, this device is also very suitable for applications that require tight output voltage regulation.The ST715PUR\'s working principle is based on a variation of the linear voltage regulation circuit. With this circuit, the output voltage is calculated by multiplying the input voltage by a gain constant. The gain constant is calculated from the voltage regulator\'s components, such as resistors and capacitors.The ST715PUR voltage regulator circuit also includes two feedback capacitors that are connected to the non-inverting and inverting inputs of the comparator. The inverting input is connected to the output voltage through a variable resistor. When the output voltage reaches the voltage set by the comparator, the feedback capacitors are discharged and the output voltage is regulated at this set level.The ST715PUR also includes a power regulation loop that senses the temperature of the device, ensuring that the operating temperature of the device is kept within allowable limits. In order to maintain temperature regulation, the power regulation loop uses a thermistor as a temperature-sensing element.The ST715PUR voltage regulator also includes a power-saving mode that helps keep the voltage regulator\'s power consumption to a minimum. This feature enables the device to reduce its power consumption while in standby mode, helping to extend the device\'s battery life.In conclusion, the ST715PUR is an excellent voltage regulator for use in applications that require high efficiency and tight output voltage regulation. The integrated temperature sensing capabilities and power-saving mode make it very suitable for battery-powered devices.

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