Texas Instruments LMR16006XDDCT DC-DC Buck Regulator, 4-60V Input, 0.8-55V 600m

The Texas Instruments LMR16006XDDCT is a high-performance, adjustable PWM DC-DC buck (step-down) voltage regulator. Designed for efficiency and reliability, it supports a remarkably wide input voltage range of 4V to 60V, making it an exceptionally versatile component for converting an unregulated power source into a stable, lower output voltage. This broad range makes it suitable for demanding industrial, automotive, and portable device applications where input power can be highly variable.

A key feature is its outstanding power efficiency, particularly in standby. The regulator boasts an ultra-low standby current of just 28µA when operating in its ECO mode, which is ideal for battery-powered systems aiming to maximise operational life. Furthermore, its shutdown current is an incredibly low 1µA, helping to preserve battery charge during inactive periods. The fixed operating frequency of 0.7MHz (for the X version) allows for the use of smaller external inductors and capacitors, enabling compact designs without compromising on performance.

To simplify circuit design and minimise the component count, the device integrates several key functions internally. These include soft-start, which prevents inrush current at startup, and internal compensation, which stabilises the control loop. It is optimised to deliver output currents of up to 600mA and features a typical feedback voltage of 0.765V. For robust operation, the LMR16006XDDCT is equipped with comprehensive built-in protection, including pulse-by-pulse current limiting and thermal shutdown to prevent damage from overloads or excessive power dissipation.

Key Specifications:

• Topology: Buck (Step-Down)
• Input Voltage Range: 4V to 60V DC
• Output Voltage Range: Adjustable, 800mV to 55V
• Maximum Output Current: 600mA
• Switching Frequency: 700kHz (fixed)
• Operating Temperature Range: -40°C to +125°C