LM21212MH-1/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM21212MH-1/NOPB is a synchronous step-down switching regulator from Texas Instruments, housed in a 20-pin HTSSOP package. It delivers up to 12 A of output current with an adjustable voltage range of 600 mV to 5.5 V. The device operates with an input voltage range of 2.95 V to 5.5 V and supports a programmable switching frequency between 300 kHz and 1.55 MHz. It features voltage mode control for precise regulation and includes integrated power MOSFETs. The component functions reliably within an operating temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side N-channel power MOSFETs for efficient synchronous rectification.
• Supports external clock synchronization to align switching frequency with system timing requirements.
• Includes comprehensive protection mechanisms such as cycle-by-cycle current limiting, thermal shutdown, and undervoltage lockout.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load (POL) conversion for field-programmable gate arrays (FPGAs).
• Power supply stages for complex digital signal processors (DSPs).
• Voltage regulation for embedded systems requiring high transient response.

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and electrical characteristics. Ensure the ordering part number matches the required package style and tape-and-reel specifications. Cross-reference manufacturer documentation to validate RoHS compliance status and environmental ratings before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems requiring high efficiency at moderate input voltages near 3.3 V or 5 V. Consider the 12 A current capability and wide frequency range for optimizing passive component size. Evaluate thermal management needs due to the HTSSOP-20 package constraints under full load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM21212 family of high-efficiency synchronous buck regulators. It is designed to replace older linear regulators or less efficient switching solutions in compact power architectures. The series emphasizes performance in space-constrained applications while maintaining stable operation across varying load conditions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official substitution guides for compatible alternatives within the same product family. Verify that any substitute maintains identical pin configurations and electrical parameters to ensure board compatibility without redesign.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum switching frequency supported by the LM21212MH-1/NOPB?

The device supports a programmable switching frequency range from 300 kHz to 1.55 MHz.

Does the LM21212MH-1/NOPB support external clock synchronization?

Yes, the regulator includes a SYNC pin that allows the switching frequency to be synchronized with an external clock source.