DA9142-A数据手册Renesas中文资料规格书

描述 Description

The DA9142-A is a high efficiency, automotive grade, high current, dual-phase, step down DC-DC (Buck) converter with integrated switching FET's.The device can drive loads up to 20 Amps and is well suited for powering high performance AI/graphics processor cores in today’s complex automotive SoCs.

The device has an input voltage range of 2.8 V to 5.5 V and an output voltage range of 0.3 V to 1.3 V, making it suitable for a wide variety of low voltage systems.The DA9142-A only requires a minimum number of discrete components to operate, delivering a highly optimized BoM and footprint.

The DA9142-A device is part of the Dialog family of Flexible, Scalable, Reliable Automotive grade PMICs enabling an “Exact Fit” power solution. It is available in a 4.5mm x 7.0mm 60-pin FC-BGA package. A commercial grade version is also available (DA9142).

特性 Features

• 2.8 V to 5.5 V input voltage
• 0.3 V to 1.3 V output voltage
• Up to 20 Amps peak current drive
• 4 MHz nominal switching frequency
• ±1 % accuracy (static)
• I2C-compatible interface (FM+)
• 4-phase operation
• Remote sensing
• Configurable GPIOs
• Programmable soft start
• DVC support
• Voltage, current, and temperature supervision
• Key safety features
Output under-voltage and over-voltage protection
Input under-voltage protection
2-step over-temperature protection
• -40 °C to +125 ºC ambient temperature Range
• Multi-Phase operation delivers better transient performance, lower losses, better efficiency, optimized thermal dissipation, and minimized ripple current and voltages when compared to a single-phase architecture
• Lower PCB costs and smaller components with lower overall heights for low profile applications
• Flexibility - Offers the opportunity to optimally place the Inductors and capacitors close to the point of load
• Distributed power dissipation –more even distribution of heat – critical for efficient thermal management
• Remote sensing guarantees the highest accuracy and supports multiple PCB routing scenarios without loss of performance
• Fully programmable soft start limits the inrush current from the input to give a slope-controlled output voltage
• Dynamic voltage control (DVC) enables adaptive adjustment of the supply voltage dependent on the load. This increases efficiency when the downstream circuitry enters low power or idle mode, resulting in power savings
• Configurable GPIOs support a range of features including I2C, DVC and Power Good indicator

应用 Application

Navigation systems
Telematics
AI engines
Automotive infotainment
Advanced driver assistance systems (ADAS)
SiPP modules
Automotive SoC/FPGA high performance processing system requiring efficient, high current, power delivery