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Product Detailed Parameters
- Description：IC REG QUAD BUCK/LNR SYNC 20WQFN
- Series：D-CAP™
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Topology：Step-Down (Buck) Synchronous (2), Linear (LDO) (2)
- Number of Outputs：4
- Frequency - Switching：300kHz, 355kHz
- Voltage/Current - Output 1：Controller
- Voltage/Current - Output 2：Controller
- Voltage/Current - Output 3：3V, 100mA
- w/LED Driver：No
- w/Supervisor：No
- w/Sequencer：No
- Voltage - Supply：5.5V ~ 24V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：20-WFQFN Exposed Pad
- Supplier Device Package：20-WQFN (3x3)
- Grade：-
- Qualification：-
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Overview
The TPS51275B-1RUKT is a Texas Instruments PMIC integrating two synchronous buck converters and two low-dropout linear regulators within a single package. It operates from a supply voltage range of 5V to 24V, utilizing D-CAP topology for the switching sections at frequencies of 300kHz and 355kHz. The device provides four outputs in a 20-WQFN (3x3) surface-mount package. It supports an operating temperature range from -40°C to +85°C and includes features such as internal soft-start and thermal protection.
Feature Summary
- Integrates dual synchronous buck controllers and dual LDOs for comprehensive power management
- Utilizes D-CAP control architecture for stable operation without external compensation components
- Includes built-in thermal shutdown and overcurrent protection mechanisms
Applications
- Portable electronic devices requiring multiple regulated voltage rails
- Industrial equipment with space-constrained power distribution needs
- Embedded systems utilizing mixed switching and linear regulation topologies
Procurement Notes
Verify the specific suffix 'B-1' against the official datasheet to confirm output configurations and pin assignments. Ensure the selected package variant matches the required footprint dimensions. Confirm RoHS compliance status and moisture sensitivity level requirements prior to assembly planning.
Selection Notes
Select this component when a compact solution combining both switching and linear regulation is necessary. Evaluate the total current requirements against the integrated regulator capabilities. Consider the input voltage range compatibility with the system power source before finalizing the design.
Part Context
This part belongs to the TPS51275 family of multi-output power management ICs. It serves as a specialized variant designed to reduce board space by consolidating multiple power stages into a single integrated circuit compared to discrete solutions.
Replacement Considerations
TPS51275BRUKT and TPS51275CRUKR are related variants within the same product family. Verify functional equivalence and pin compatibility before substitution.
