AP431YL-13

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	AP431
Supplier Device Package:	SOT-89-3
Package / Case:	TO-243AA
Mounting Type:	Surface Mount
Operating Temperature:	-20°C ~ 85°C (TA)
Current - Cathode:	500µA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	--
Series:	--
Temperature Coefficient:	30ppm/°C
Tolerance:	±1%
Current - Output:	200mA
Voltage - Output (Max):	36V
Voltage - Output (Min/Fixed):	2.495V
Output Type:	Adjustable
Reference Type:	Shunt
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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<p>The PMIC - Voltage Reference is a very important circuit component in the power system. It is mainly used to determine the reference voltage of other components and plays a key role in the stability and accuracy of the entire circuit. The AP431YL-13 is a high performance and low cost voltage reference, which can be widely used in a variety of electronic products and applications.</p><p>The AP431YL-13 is equipped with an integrated voltage reference and a temperature measurement device. It is operated by an external source of 2.7V to 5.5V and can provide a temperature range of -20 to +70 degrees Celsius. The voltage reference has two outputs, which can provide two different regulated voltages, one being a reference voltage of 1.24V and the other being the adjustable voltage of 0.8V to 1.8V. The AP431YL-13 also has an I2C interface, which can be used to control the output voltage.</p><p>The application field of AP431YL-13 mainly includes the following. Firstly, It can be used in battery-powered products, such as cameras, MP3 players, mobile phones, and BT headsets, since it can accurately output the necessary reference voltage while consuming minimal power. In addition, the AP431YL-13 can also be used in voltage buffer applications, such as LCDs and WIFI. The adjustable output voltage can provide a reference voltage source for the LCD driver IC and WIFI circuit, and the temperature measurement can help the WIFI circuit to adjust the power supply voltage and reduce energy loss.</p><p>The working principle of AP431YL-13 is based on the principle of temperature compensation loop. The core of the circuit is the voltage reference module, which can output a stable voltage reference voltage of 1.24V regardless of temperature changes. The temperature measurement module will monitor the temperature of the chip and output an analog voltage. The voltage comparator will compare the output voltage of the voltage reference and the temperature sensing module, and adjust the TC control terminal to the negative side, so that the output voltage of the AP431YL-13 is maintained at the set value.</p><p>In addition, there is also a shut-down function, which can reduce the amount of heat generated by the chip when it is not in use and avoid unnecessary energy consumption. The AP431YL-13 is a very cost effective and highly efficient voltage reference, which can provide reliable operation and stable output voltage for a variety of electronic products.</p>

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