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LMR51603XDBVR 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 LMR51603XDBVR
- 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：400kHz
- 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 LMR51603XDBVR
Voltage Regulators - DC DC Switching Regulators Overview
The LMR51603XDBVR is a synchronous buck converter from Texas Instruments featuring an input voltage range of 4.5 V to 65 V and an adjustable output voltage from 800 mV to 28 V. It delivers a maximum output current of 300 mA with a fixed switching frequency of 1.1 MHz. The device operates within a junction temperature range of -40°C to +150°C, draws 420 µA of quiescent current, and is housed in a SOT-23-6 package.
Voltage Regulators - DC DC Switching Regulators Feature Summary
- Integrated synchronous rectification for high efficiency
- Fixed 1.1 MHz switching frequency enables compact passive component selection
- Extended operating junction temperature range up to 150°C
Voltage Regulators - DC DC Switching Regulators Applications
- Industrial control systems
- Automotive electronics
- Point-of-load regulation
Voltage Regulators - DC DC Switching Regulators Procurement Notes
Verify the specific suffix 'X' against the official datasheet to confirm automotive qualification status or specific tape-and-reel specifications. Ensure the ordering part number matches the exact package variant and moisture sensitivity level required for your assembly process. Cross-reference the manufacturer's latest documentation for any updates regarding compliance or lifecycle status.
Voltage Regulators - DC DC Switching Regulators Selection Notes
Select this component when a wide input voltage range up to 65 V is required in a minimal footprint. The fixed 1.1 MHz frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. It is suitable for applications demanding high reliability and extended temperature operation within a small SOT-23-6 package.
Voltage Regulators - DC DC Switching Regulators Part Context
This part belongs to the LMR516xx family of SIMPLE SWITCHER regulators. These devices are designed for space-constrained applications requiring high efficiency and robust performance. The family shares common architectural features but varies in current rating and switching frequency options to suit different power density requirements.
Voltage Regulators - DC DC Switching Regulators Replacement Considerations
Consult the official datasheet for confirmed pin-to-pin compatible substitutes within the same product family. Verify that alternative parts match the input voltage range, output current capability, and thermal characteristics before implementation.
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