IRU3037ACFTRPBF

Frequency - Switching:	400kHz
Base Part Number:	IRU3037ACFPBF
Supplier Device Package:	8-TSSOP
Package / Case:	8-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	0°C ~ 70°C (TA)
Control Features:	Enable, Soft Start
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	90%
Series:	--
Voltage - Supply (Vcc/Vdd):	4.2 V ~ 25 V
Output Phases:	1
Number of Outputs:	1
Topology:	Buck, Boost
Output Configuration:	Positive
Function:	Step-Up, Step-Down
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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<h2>IRU3037ACFTRPBF Application Field and Working Principle</h2><p>An IRU3037ACFTRPBF is a DC/DC switch-mode synchronous step-down regulator. It is a post-regulator interface IC (PIIC) particularly tailored for isolated load applications, such as data communication and telecom systems.</p><p>DC/DC switching controllers can be used in a variety of applications including voltage conversion, voltage regulation, and power control applications. A DC/DC switching controller, such as the IRU3037ACFTRPBF, is a specially-designed integrated circuit (IC) which incorporates both the control and drive signals for a power conversion or power control system. It is responsible for regulating the input voltage to a constant output voltage.</p><p>The IRU3037ACFTRPBF is a popular choice for generating a properly regulated voltage from switchmode power supplies with a minimum of added components. It operates in a synchronous buck fashion with integrated functions such as current limit, soft-start, PWM, frequency modulation, and voltage feedback.</p><h3>Application Fields</h3><p>The IRU3037ACFTRPBF has been designed to provide excellent performance in applications that require high accuracy, low noise, and high efficiency. It is ideal for applications requiring an adjustable voltage supply with very low ripple. Its wide operating range makes it suitable for use in devices with a variety of different power specifications.</p><p>The IRU3037ACFTRPBF is suitable for a variety of applications, such as personal computers, medical equipment, telecom equipment, and industrial control systems. It is also suitable for automotive applications, such as powertrain, navigation, safety, and entertainment systems.</p><h3>Working Principle</h3><p>The IRU3037ACFTRPBF is a synchronous buck dc/dc switch-mode regulator that operates based on the Pulse Width Modulation (PWM) technique. It combines on-chip FETs and internal control circuitry to provide stable, accurate, and efficient output voltage conversion.</p><p>During each switching cycle, an internal oscillator creates a triangle waveform. This triangle waveform acts as the reference for a comparator and the output of the comparator is used to drive the FETs. This ensures that the output voltage remains constant, regardless of variations in the input voltage or load current.</p><p>The PWM control also allows the IRU3037ACFTRPBF to transfer very low ripple to the output, ensuring smooth and clean power. Its adjustable frequency allows it to meet the requirements of a wide range of applications, from low noise communications to high power industrial systems.</p><p>The IRU3037ACFTRPBF is designed to effectively switch between two regulated output voltages. It can switch between the two outputs with a maximum switching frequency of up to 300 KHz.</p><p>The IRU3037ACFTRPBF also offers protection features such as overvoltage protection, input undervoltage protection, thermal shutdown, programmable soft start, and overload protection.</p><h3>Conclusion</h3><p>The IRU3037ACFTRPBF is an ideal choice for applications that require a reliable, low noise, and accurate DC/DC switching controller. Its wide range of features and adjustable frequency make it suitable for a variety of power applications. It is also capable of operating at high efficiency, providing excellent performance for a variety of applications.</p>

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