LM25007SD Integrated Circuits (ICs)

Voltage - Output (Min/Fixed):	2.5V
Base Part Number:	LM25007
Supplier Device Package:	8-WSON (4x4)
Package / Case:	8-WDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	Up to 800kHz
Current - Output:	500mA
Voltage - Output (Max):	37V
Series:	--
Voltage - Input (Max):	42V
Voltage - Input (Min):	9V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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LM25007SD Application Field and Working Principle

The LM25007SD is an integrated, step-down DC-DC switch mode voltage regulator used in a wide range of applications. It is designed to provide excellent performance, while offering minimal interference across a wide range of operating conditions. It has a wide input voltage range, low output voltage ripple, and superior transient response. The LM25007SD is a reliable, cost-effective choice for applications requiring a reliable and efficient solution.The LM25007SD is a switching differential voltage regulator, meaning it steps down input voltage by using a switch circuit. This switch circuit is integrated on a single chip and can be used to convert a wide input voltage range. The device contains a coil, known as a switched inductor, which acts as an inductor during the on-time and a transformer during the off-time of the switch. The switch itself is electronic and is controlled by a Pulse Width Modulation (PWM) signal sent from an external control circuit. This PWM duty cycle determines the output voltage by controlling how much current is switched into the output at each switching cycle. The LM25007SD is designed to provide excellent transient response and improved load and line regulation. This can be accomplished by implementing a number of features, such as:

• Mode control on-time/off-time synchronizing to PWM signal (TL1510)
• Fixed turn-on, turn-off time delay, to ensure soft switching and longer life time
• Advanced frequency compensation, to ensure minimal output voltage ripple
• Advanced x-axis compensation, for improved loop stability
• Current limit and thermal protection, for improved reliability and protection

The LM25007SD can be operated in varying modes, allowing for the optimization of the output power. These include pulse skip, burst mode operation, pulse frequency modulation, and pulse width modulation. These modes are designed to provide the best efficiency and reliability, while operating within the specified parameters. The LM25007SD also provides thermal protection, over-current protection, and a logic level enable/disable control. This robust protection ensures the device is reliable in all operating conditions and can deliver the required output current without compromising efficiency.In conclusion, the LM25007SD is an excellent choice for a range of DC-DC switching voltage regulator applications. It is a reliable and cost-effective solution, providing excellent performance and minimal interference across a wide range of operating conditions. It provides robust protection, optimized output power, and improved transient response and load and line regulation.

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