UCC2541 Texas instruments

UCC2541

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UCC2541

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Описание

The UCC2541 is a synchronous buck PWM controller for high current and low output voltage applications. For higher efficiency, it incorporates the Predictive Gate Drive technology that virtually eliminates body diode conduction losses in synchronous rectifiers. The UCC2541 is available in the extended temperature range of -40°C to 105°C and is offered in thermally enhanced PowerPAD 20-pin HTSSOP (PWP) or 32-pin quad flatpack (RHB) package. This space saving package with standard 20-pin TSSOP footprint has a drastically lower thermal resistance of 1.4°C/W JC to accommodate the dual high-current drivers on board.

On-Chip Predictive Gate Drive™ for High-Efficiency Synchronous Buck Operation
Dual ±3-A TrueDrive™ Outputs
On-Board Programmable Oscillator with 1-MHz Frequency Operation
TR Input for Sequencing Operation
Overcurrent Protection using a Parallel Average Current Mode Control Loop
3 Modes to Support 2.7-V to 35-V Input Bias
Reverse Current Protection for Output Stage
User Programmable Shutdown Using SS Pin
±1.0% Initial Tolerance Bandgap Reference
High Bandwidth Error Amplifiers
Thermally Enhanced HTSSOP 20-Pin PowerPAD™ Package and QFN-32 Pin
Synchronization Input
Supports Pre-Bias Applications
APPLICATIONS
- High Efficiency Non-Isolated Converters Requiring Advanced Features such as Pre-Bias Support and Tracking Capability
- Point-of-Load Modules for Servers, Telecom, and Data communication Equipments
- Good for Input Voltages of 3.3 V, 5.0 V, 12.0 V, or Intermediate Bus Voltages

Predictive Gate Drive, TrueDrive and PowerPAD are trademarks of Texas Instruments Incorporated.

Topology	Buck, Inverting buck boost
Operating temperature range (°C)	-40 to 105
Rating	Catalog