LMR10515YMFX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LMR10515YMFX/NOPB is a Texas Instruments SIMPLE SWITCHER buck converter featuring a 3 MHz fixed switching frequency. It supports an input voltage range of 3 V to 5.5 V and delivers up to 1.5 A output current. The adjustable output voltage spans from 600 mV to 4.5 V. Operating within a temperature range of -40°C to +125°C, it utilizes a SOT-23-5 package. The device includes shutdown functionality and maintains a quiescent current of 3.3 mA.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side N-channel MOSFET for efficient step-down conversion
• Fixed 3 MHz switching frequency enables compact external component sizing
• Built-in soft-start limits inrush current during power-up sequences
• Comprehensive protection against overcurrent, thermal overload, and undervoltage lockout

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered consumer electronics
• Embedded systems requiring regulated low-voltage rails
• Industrial control modules with single-supply inputs
• Communication equipment power distribution networks

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific YMFX suffix indicates the 3 MHz switching frequency variant distinct from other LMR10515 models. Confirm RoHS compliance status and ensure the SOT-23-5 package matches the target PCB footprint. Validate that the operating temperature range meets the environmental requirements of the final assembly before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a higher switching frequency is required to minimize passive component size compared to 1.6 MHz variants. Ensure the input voltage source remains within the 3 V to 5.5 V limit. Consider thermal dissipation capabilities given the small SOT-23-5 package when designing for maximum load currents near the 1.5 A rating.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR10515 family of SIMPLE SWITCHER regulators. It shares architectural similarities with the LMR10515XMF/NOPB but differs in switching frequency specifications. The YMFX designation specifically identifies the 3 MHz version, distinguishing it from lower-frequency counterparts within the same product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR10515YMF/NOPB offers identical electrical performance with a different packaging option. LMR10515XMF/NOPB provides similar functionality but operates at a lower 1.6 MHz frequency, affecting passive component selection.