LMR51603XFDBVR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR51603XFDBVR is a synchronous buck converter from Texas Instruments, packaged in a SOT-23-6. It supports an input voltage range of 4V to 65V and delivers up to 300mA output current. The device regulates output voltages between 800mV and 28V with a single output channel. Operating frequencies include 400kHz and 1.1MHz. Quiescent current is specified at 420µA, while shutdown supply current is 38µA. The component operates within a temperature range of -40°C to +150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Configured for rugged industrial applications
• Functional safety capable with documentation available for system design

Voltage Regulators - DC DC Switching Regulators Applications

• Rugged industrial systems
• Wide input voltage regulation
• Low current power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the 'X' suffix indicates automotive-grade qualification or specific reliability standards as defined by Texas Instruments. Confirm the SOT-23-6 package type matches the target PCB footprint. Ensure the 65V maximum input rating aligns with the application's peak voltage conditions. Cross-reference the functional safety documentation requirements if certification is mandatory for the end product.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 65V is required in a compact SOT-23-6 package. It is suitable for applications needing low standby power consumption with a shutdown current of 38µA. Consider the 300mA load capability for small-scale power distribution. Verify that the functional safety documentation meets the specific integrity level requirements of the target system design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR51603 series of synchronous buck converters. It shares the core architecture with standard variants but includes the 'X' suffix, which typically denotes automotive-grade qualification or enhanced reliability specifications. The series is designed for high-voltage inputs in space-constrained environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR51603Y3DBVR: Standard commercial grade variant with identical electrical performance but potentially different qualification standards. LMR51610YDBVR: Higher current capacity (1A) version with similar input/output characteristics.