LTC3638 (8)

LTC3638 is available from Analog Devices Inc. Inc. at Xecor. Designed for high-efficiency step-down DC/DC regulation, the LTC3638 offers wide input voltage range (4V to 140V), low quiescent current (12µA), and adjustable output current (20mA to 250mA). Available in thermally enhanced high-voltage MSOP packages, it is ideal for industrial control supplies, medical devices, distributed power systems, portable instruments, battery-operated devices, avionics, and automotive applications. Whether used in battery-powered systems or high-voltage environments, this series ensures reliable performance, low power consumption, and flexibility for demanding applications. Xecor is an authorized distributor for Analog Devices Inc. Inc.. Please view our extensive selection of the LTC3638 series below.

Part Number Description Package Inventory Add To Bom
LTC3638EMSE#PBF Conv DC-DC 4V to 140V Step Down Single-Out 0.8V to 140V 0.25A 12-Pin MSOP EP Tube MSOP-16 6,598
LTC3638IMSE#TRPBF 40V 250mA, hi-efficiency switching voltage regulator, 16(12)-Lead MSOP w/ EP 5,872
LTC3638HMSE#TRPBF Low-Noise 140V Buck Converter with Integrated MOSFET 16(12)-Lead MSOP w/ EP 6,582
LTC3638EMSE#TRPBF Low-noise, high-efficiency DC power supply for precision system 16(12)-Lead MSOP w/ EP 9,230
LTC3638HMSE#PBF Operating as a buck regulator IC, LTC3638HMSE#PBF facilitates voltage regulation with adjustable output, accommodating a maximum output current of 0 MSOP-16-12 6,093
LTC3638MPMSE#PBF Compact step-down regulator suitable for small design MSOP-16 6,706
LTC3638MPMSE#TRPBF DC to DC Converter" by LTC3638MPMSE#TRPBF MSOP-16-12 6,863
LTC3638IMSE#PBF Conv DC-DC 4V to 140V Step Down Single-Out 0.8V to 140V 0.25A 12-Pin MSOP EP Tube MSOP-16 7,273

Key Featrues

Wide Operating Input Voltage Range (4V to 140V): This feature allows the LTC3638 to handle a broad range of input voltages, making it versatile for applications with varying power sources, such as industrial control supplies, automotive systems, and battery-operated devices. Its ability to operate at high input voltages enhances its suitability for high-voltage environments.
Low Quiescent Current (12µA): The regulator maintains a very low quiescent current, significantly improving efficiency in low-power or standby modes. This is particularly beneficial for battery-operated devices and portable instruments, where minimizing power consumption is critical for extending battery life.
Adjustable Output Current (20mA to 250mA): The adjustable output current feature provides flexibility in designing power supplies for different load requirements. This ensures optimal performance across a wide range of applications, from low-power medical devices to more demanding industrial systems.
Internal Low Resistance Power MOSFET: The integrated low-resistance MOSFET reduces power losses and improves efficiency, especially in high-current applications. This feature simplifies the design by minimizing the need for external components and enhances thermal performance.
Programmable Input Overvoltage Lockout: This feature protects the regulator and the downstream circuitry from damage due to excessive input voltage. It ensures reliable operation in environments where input voltage fluctuations are common, such as automotive or industrial settings.

Applications

Industrial Control Supplies: The LTC3638 is ideal for powering industrial control systems, such as PLCs (Programmable Logic Controllers) and motor drives. Its wide input voltage range (4V to 140V) and high efficiency make it suitable for handling fluctuating power sources in harsh industrial environments, ensuring reliable operation and minimal energy loss.
Medical Devices: The LTC3638 is well-suited for medical devices, such as portable diagnostic equipment and patient monitoring systems. Its low quiescent current (12µA) and adjustable output voltage (0.8V to 140V) enable efficient power management, extending battery life and ensuring consistent performance in critical healthcare applications.
Distributed Power Systems: The LTC3638 is an excellent choice for distributed power systems, such as renewable energy inverters and telecom power supplies. Its ability to operate at 100% duty cycle and handle high input voltages (up to 140V) ensures stable power delivery across distributed networks, even under varying load conditions.
Automotive Electronics: The LTC3638 is ideal for automotive applications, such as infotainment systems, advanced driver-assistance systems (ADAS), and lighting controls. Its robust design, wide input voltage range, and AEC-qualified status make it suitable for the demanding electrical environments of modern vehicles, ensuring reliable performance and compliance with automotive standards.