LMR51603YFDBVR

$0.77

Description：4.5V-TO-65V 0.3A SYNCHRONOUS BUC
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:dee778bc8d4d Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

LMR51603YFDBVR is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is 4.5V-TO-65V 0.3A SYNCHRONOUS BUC. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LMR51603YFDBVR

Description：4.5V-TO-65V 0.3A SYNCHRONOUS BUC
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：4V
Voltage - Input (Max)：65V
Voltage - Output (Min/Fixed)：0.8V
Voltage - Output (Max)：28V
Current - Output：300mA
Frequency - Switching：1.1MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：SOT-23-6
Supplier Device Package：SOT-23-6
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LMR51603YFDBVR

LMR51603YFDBVR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR51603YFDBVR is a synchronous buck converter from Texas Instruments, housed in an SOT-23-6 package. It supports an input voltage range of 4.5V to 65V and delivers up to 300mA output current. The adjustable output voltage spans from 800mV to 28V. Operating with a fixed switching frequency of 1.1MHz, the device features a quiescent current of 420µA. It functions reliably within a junction temperature range of -40°C to +150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated synchronous rectification for high efficiency in a compact footprint
Fixed 1.1MHz switching frequency enables use of small external components
Wide 65V input voltage capability suitable for industrial applications

Voltage Regulators - DC DC Switching Regulators Applications

Industrial control systems
Infotainment units
Point-of-load regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'YF' against the manufacturer datasheet to confirm tape-and-reel packaging and temperature grade specifications. Ensure the ordering part number matches the required pin configuration and environmental ratings. Cross-reference the component marking code with official identification guides to prevent counterfeit substitution during acquisition.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 65V is required alongside moderate current delivery. The fixed 1.1MHz frequency optimizes passive component size compared to lower-frequency alternatives. Verify that the 300mA load requirement fits within the thermal constraints of the SOT-23-6 package for the intended operating environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LMR516xx family of SIMPLE SWITCHER converters. It shares architectural similarities with the LMR51610 but offers lower current capacity. The series targets space-constrained designs requiring robust performance across extended industrial temperature ranges without complex compensation networks.