UCC2541数据手册集成电路（IC）的PMIC-稳压器-DCDC开关式控制器规格书PDF

描述 Description

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.



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.

特性 Features

• 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.