TPS74401-EP中文资料增强型产品单路输出 3A LDO、可调节电压（0.8V 至 3.3V）、快速瞬态响应、可编程软启动数据手册TI规格书

描述 Description

The TPS74401 low-dropout (LDO) linear regulator provides an easy-to-use robust power management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and well-suited for powering many different types of processors and ASICs. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility permits the user to configure a solution that will meet the sequencing requirements of FPGAs, DSPs, and other applications with specific start-up requirements. A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. Each LDO is stable with low-cost ceramic output capacitors and the device is fully specified from –55°C to 125°C.

特性 Features

• Soft-Start (SS) Pin Provides a Linear Startup with Ramp Time Set by External Capacitor
• Supports Input Voltages as Low as 0.9 V with External Bias Supply
• Ultra-Low Dropout: 115 mV at 3.0 A (typ)
• Excellent Transient Response
• Active High Enable
• Controlled Baseline
• One Fabrication Site
• Extended Product Life Cycle
• Product Traceability
• APPLICATIONS
• DSP Core and I/O Voltages
• Applications with Special Start-Up Time or Sequencing Requirements
• Hot-Swap and Inrush Controls


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