AP1501A-12K5G-13

Voltage - Output (Min/Fixed):	12V
Base Part Number:	AP1501
Supplier Device Package:	TO-263-5
Package / Case:	TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
Mounting Type:	Surface Mount
Operating Temperature:	-20°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	150kHz
Current - Output:	5A
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	40V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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DC DC Switching Regulators

DC-DC switching regulators are an increasingly popular option for voltage regulation on modern electrical circuits due to their advantages when compared to other types of regulators. Unlike transformer-based linear regulators, DC-DC switching regulators are more efficient and offer better noise immunity at a significantly lower cost. The AP1501A-12K5G-13 is a DC-DC synchronous step-down switching regulator that is optimized for low to medium power systems. It offers high efficiency over a wide range of input voltages and flexible output voltage options. The AP1501A-12K5G-13 also has an adjustable pulse-skipping operating mode, which further improves efficiency and reduces the total solution size.

Applications

The AP1501A-12K5G-13 is a versatile regulator that is suitable for a wide range of applications including telecom, industrial automation, consumer electronics, and automotive. It is well-suited for systems that require a compact and efficient voltage regulator with good transient response, low output noise and good EMI performance. Common applications of the AP1501A-12K5G-13 include:

• Telecommunication equipment
• Industrial equipment
• Consumer electronics
• Automotive electronics

Working Principle

The AP1501A-12K5G-13 is a synchronous step-down regulator, which uses two transistors: a PMOS and a NMOS. The regulator works by alternately turning the two transistors on and off at a fixed frequency. During each cycle, the PMOS is turned on first, allowing current to flow from the input voltage source to the output voltage. The NMOS transistor is then turned on, which helps to reduce the output voltage.This process is controlled using a dedicated digital control engine, which adjusts the output voltage and the duty cycle based on feedback from the output voltage. This ensures that the output voltage remains stable and within the specified voltage range. The controller also switches pulse-skipping mode on and off, depending on current conditions. This helps to improve efficiency, reduce noise and reduce overall size.

Conclusion

The AP1501A-12K5G-13 is a synchronous step-down switching regulator that is optimized for low to medium power systems. It offers high efficiency over a wide range of input voltages and flexible output voltage options. Pulse-skipping mode helps to improve efficiency, reduce noise and reduce overall size. The AP1501A-12K5G-13 is suitable for a wide range of applications, including telecom, industrial automation, consumer electronics, and automotive. It is an ideal choice for systems that require a compact and efficient voltage regulator with good transient response, low output noise and good EMI performance.

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