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Product Detailed Parameters
- Description：IC REG CTRLR BUCK-BOOST 28HTSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Transistor Driver
- Function：Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Buck-Boost
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：3.5V ~ 42V
- Frequency - Switching：100kHz ~ 600kHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：Yes
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Enable, Frequency Control, Power Good, Soft Start
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：28-PowerTSSOP (0.173", 4.40mm Width)
- Supplier Device Package：28-HTSSOP
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LM5175QPWPRQ1 is an automotive-qualified synchronous buck controller from Texas Instruments, designed for high-current applications. It operates with a wide input voltage range of 4.5 V to 42 V and supports output voltages down to 800 mV. The device delivers up to 20 A of output current and features an adjustable switching frequency between 100 kHz and 600 kHz. It utilizes a compact HTSSOP-28 package and functions reliably within a temperature range of -40°C to +125°C.
Feature Summary
- Automotive-grade qualification ensuring reliability in vehicle environments
- Wide input voltage capability supporting diverse power architectures
- High-output current capacity suitable for demanding load requirements
Applications
- Automotive infotainment systems
- Digital cockpit displays
- ADAS sensor power supplies
Procurement Notes
Verify the specific suffix 'PWPRQ1' to confirm the HTSSOP-28 package and reel packaging configuration. Ensure the component meets AEC-Q100 standards for your specific application grade. Cross-reference the datasheet revision to confirm pinout compatibility and electrical characteristics match your design requirements before finalizing procurement.
Selection Notes
Select this controller when designing power stages requiring high current delivery in automotive contexts. It is appropriate for systems needing flexible input voltage ranges and programmable switching frequencies. Consider thermal management solutions due to the high current capabilities and ensure the PCB layout supports the HTSSOP-28 footprint for optimal performance.
Part Context
This component belongs to the LM5175-Q1 family of synchronous buck controllers. It is engineered specifically for automotive electronics, offering robust protection features and high efficiency. The part integrates internal gate drivers and control logic to simplify the design of step-down power converters for critical vehicle subsystems.
Replacement Considerations
Check for LM5175QPWPTQ1 as a potential alternative with similar specifications but potentially different packaging or tape-and-reel configurations. Verify functional equivalence regarding pinouts and electrical parameters before substitution.
