LM26420YMH/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM26420YMH/NOPB is a dual synchronous step-down DC-DC converter from Texas Instruments, designed for high-efficiency power management. It features two independent channels, each capable of delivering up to 2A of output current. The device operates with an input voltage range of 3V to 5.5V and provides adjustable outputs from 0.8V to 4.5V. Integrated into a compact 20-pin HTSSOP package with an exposed pad, it supports a switching frequency of 2.2MHz. The regulator includes internal compensation, soft-start, and protection features such as overcurrent and thermal shutdown, suitable for space-constrained applications requiring dual regulated rails.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual-channel synchronous buck topology providing independent 2A outputs
• Integrated high-frequency switching at 2.2MHz for reduced external component size
• Built-in adaptive control loop eliminating the need for external compensation components
• Comprehensive protection mechanisms including cycle-by-cycle current limiting and thermal regulation

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems requiring multiple regulated voltage rails
• Industrial control modules needing efficient dual-step-down conversion
• Portable electronic devices with strict space constraints for power management ICs
• Embedded computing platforms utilizing low-voltage digital logic supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'YMH' against the official Texas Instruments datasheet to confirm the 20-pin HTSSOP package variant. Ensure that the ordering information matches the exact part number designation for automotive or industrial grade requirements. Cross-reference the manufacturer's latest documentation to confirm availability and any potential design changes associated with this specific package configuration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when dual isolated or non-isolated 2A outputs are required within a 3V to 5.5V input window. The integrated compensation simplifies PCB layout compared to competitors requiring external network tuning. Consider the 2.2MHz frequency for minimizing inductor size while balancing switching losses. Evaluate thermal performance in the HTSSOP package relative to the expected load current and ambient conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM26420 family of dual synchronous DC-DC converters. It shares functional similarities with other TI parts like the LM26420Q1 but differs in packaging and specific qualification levels. The YMH suffix denotes the specific tape-and-reel packaging and HTSSOP form factor, distinguishing it from WQFN variants in the same product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM26420Q1XSQX/NOPB offers similar electrical characteristics but utilizes a 16-pin WQFN package instead of the 20-pin HTSSOP. Substitution requires verifying footprint compatibility and ensuring that the pinout differences do not impact existing circuit traces. Electrical parameters remain comparable, but thermal dissipation profiles may vary due to the package change.