TDA38740 Overview
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 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 pensation
- 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 mands & Pre-Bias Start-Up
- Thermally pensated 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