The LMZ12002TZE-ADJ is a SIMPLE SWITCHER® power module from Texas Instruments (formerly National Semiconductor). It is an easy-to-use step-down (buck) regulator capable of driving up to 2A of load current from an input voltage range of 6V to 20V. This power module integrates a DC-DC converter, inductor, and passives into a small, thermally enhanced package. It significantly simplifies power supply design and reduces the number of external components required.

Applications:

• Point of Load Regulation: Powering microprocessors, FPGAs, and ASICs.
• Industrial Automation: Supplying power to sensors, controllers, and communication modules.
• Telecommunications Equipment: Providing power to network interfaces, routers, and switches.
• Medical Devices: Powering portable medical equipment and diagnostic tools.
• Test and Measurement Equipment: Providing stable power for accurate measurements.

Features:

• Integrated Solution: Incorporates all necessary components for a complete power supply solution.
• Adjustable Output Voltage: Output voltage can be adjusted via an external resistor divider.
• High Efficiency: Provides efficient power conversion, minimizing heat generation.
• Overcurrent Protection: Protects the regulator and load from excessive current draw.
• Overtemperature Protection: Shuts down the regulator in case of overheating.
• Input Undervoltage Lockout: Prevents the regulator from operating with insufficient input voltage.
• Small Footprint: Compact package saves board space.

Benefits:

• Simplified Design: Reduces design complexity and time-to-market.
• Reduced Component Count: Minimizes the number of external components required, saving cost and board space.
• Improved Reliability: Integrated solution provides greater reliability compared to discrete designs.
• High Performance: Delivers stable and efficient power conversion.
• Thermal Performance: Thermally enhanced package provides excellent heat dissipation.

Additional Details:

The LMZ12002TZE-ADJ operates at a switching frequency that is optimized for efficiency and transient response. The module also features a soft-start function to limit inrush current during startup. The enable pin allows for remote on/off control. The device is available in a thermally enhanced TO-PMOD package. The adjustable output voltage range typically spans from 0.8V to near Vin. Datasheets specify efficiency curves across different input voltages and output currents. The module is RoHS compliant.