AP3431MTR-G1 Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Adjustable
Number of Outputs:	1
Voltage - Input (Min):	2.7V
Voltage - Input (Max):	5.5V
Voltage - Output (Min/Fixed):	0.8V
Voltage - Output (Max):	4.95V
Current - Output:	2A
Frequency - Switching:	1MHz
Synchronous Rectifier:	Yes
Operating Temperature:	-40°C ~ 80°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC

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PMIC – Voltage Regulators – DC DC Switching RegulatorsAP3431MTR-G1 is a voltage regulator device, specifically a DC-DC switching regulator capable of generating appropriate voltages for a wide range of applications. It features a current range of 2A to 5A and an output voltage range of 5.5V to 36V depending on the input voltage, but at a fixed frequency of 90KHz. Both open-frame and PCB switching packages are available with either a through-hole or a surface-mount configuration.The AP3431MTR-G1 is well-suited for a variety of applications, such as powering advanced cameras, home appliances, and electronic instruments, biomedical equipment, and other consumer electronic products. It is also readily used in aircraft, automobiles and other transportation-related applications. Additionally, the device is well-suited to fulfill the requirements of low-power, high-efficiency, and highly reliable power supply applications.The AP3431MTR-G1 features an input voltage range of 4.5V to 38V, as well as low current consumption of 3uA (IQ). The device also features an integrated short circuit detection and provides an output short circuit protection of up to 16A at a junction temperature of 125°C. The device is capable of providing a regulated constant voltage from a wide input voltage range by PWM control with a variable ON-time Feedback control system.The device also has a hysteretic control feature, which is based upon the comparison between the Internal Reference Voltage (VREF) and a sensed voltage at the output. It works as follows: under normal operation, the output voltage (VOUT) is regulated by varying the duty cycle of the switching transistor. To avoid excessive duty cycle and ensure thermal stability, hysteretic control generates an upper (VREFP) and lower (VREFN) reference voltage around VREF.The AP3431MTR-G1 also includes a built-in softstart feature, allowing the device to start up in a controlled manner and reduce the output inrush current and EMI performance. An additional feature that the device provides is an overload protection that shuts down the output until the over current or overload condition is safely addressed. Moreover, the device has a thermal shutdown protection feature, which detects an excessive temperature within the device and immediately shuts down the output in order to prevent any potential damage.Apart from its functional features, the AP3431MTR-G1 provides outstanding performance when it comes to efficiency and stability. It features an efficiency of up to 95%, and is capable of delivering an output voltage ripple of 30 mVpp at an output current of 2Amps. Additionally, the device is capable of withstanding up to 200V transient shocks.In summary, the AP3431MTR-G1 is a highly reliable, efficient and stable Voltage Regulator specially designed to meet the needs of a variety of applications. Its wide input range and current range, along with its integrated features, make it ideal for a wide range of applications. The device is also well-suited for powering a variety of consumer electronic products, and its efficiency and thermal stability make it suitable for a number of transportation-focused applications.

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