TDA387250000AUMA1

The TDA38740/725 is an easy-to-use, fully integrated and highly efficient dc-dc regulator. The onboard PWM controller and OptiMOS™ FETs with integrated bootstrap diode make TDA38740/725 a small footprint solution, providing high-efficiency power delivery. Furthermore, it uses a fast Constant On-Time (COT) control scheme, which simplifies the design efforts and achieves fast transient response. TDA38740/725 is a versatile regulator, operating with wide input and output voltage ranges, offering programmable switching frequency from 400 kHz to 2 MHz in steps of 200kHz excluding 1600kHz, and providing eight unique selectable current limits. It features a programmable dc loadline, which provides an additional tool to manage the transient response. It also features important protection functions, such as pre-bias start-up, thermally compensated current limit, over voltage and under voltage protection, and thermal shutdown to give required system level security in the event of fault conditions. The device configuration can be easily defined using Infineon XDP Designer GUI and is stored in the on-chip memory. The controller requires the fewest possible external components and results in a simplified Bill of Materials (BOM).

Applications

• Server Applications
• Storage Applications
• Telecom & Datacom Applications
• Distributed Point of Load Power Architectures

Key features

• Single 4.5 V to 17 V application or Wide Input Voltage Range from 3.0 V to 17 V with external Vcc
• Output Voltage Range: 0.25 V to 5.12 V based on Output Feedback resistor divider network
• Enhanced Fast COT Engine Stable with Ceramic output Capacitors without External Compensation
• Optional Forced Continuous Conduction Mode and Diode Emulation for Enhanced Light Load Efficiency
• Pin programmable Output Voltage, Switching Frequency/mode selection with 16 unique selectable settings
• Programmable Switching Frequency from 400 kHz to 2 MHz in steps of 200 kHz, excluding 1600 kHz
• Monotonic Start-Up with Selectable Soft-Start Time through PMBus commands & Pre-Bias Start-Up
• Thermally Compensated Internal Over Current Protection with Eight Selectable Settings
• Enable input with Voltage Monitoring Capability & Power Good Output
• PMBus system interface for reporting of Temperature, Voltage, Current & Power telemetry
• Single image Multiple Time Programming (MTP) for the USER section
• Digitally programmable load-line without any external components
• Operating temp: -40 °C < T < 125 °C
• Small Size: 5 mm x 6 mm PQFN
• Lead-free, Halogen-free and RoHS2 Compliant with Exemption 7a