SGM2591中文资料Power Distribution Switch数据手册SGMICRO规格书

描述 Description

The SGM2591 is a single channel power distribution switch. The switch controlled by the EN pin operates from 2.5V to 6V supply voltage. It can be used in USB power distribution applications. 
The SGM2591 has integrated current limit function to protect the upstream power supply from damage during over-current or short-circuit condition. It also has the function of over-temperature protection. 
The device is designed with soft-start circuit to cope with inrush currents when large capacitive loads are connected. The nFAULT output will be asserted to low level during over-current, over-temperature or reverse voltage condition. 
The SGM2591AD/BD/CD further reduces the total solution size by integrating a 50Ω pull-down resistor for output discharge when the switch is shut down by EN. 
The SGM2591 is available in a Green SOT-23-5 package.

特性 Features

• High-side N-MOSFET
• On-Resistance: 66mΩ (TYP)
• Three Current Limit Levels
SGM2591A/AD: 1300 ± 100mA
SGM2591B/BD: 2400 ± 160mA
SGM2591C/CD: 3000 ± 200mA
• Input Voltage Range: 2.5V to 6V
• Quiescent Current: 28μA (TYP)
• Shutdown Current: 0.27μA (TYP)
• Soft-Start Function
• Over-Temperature Protection
• Under-Voltage Lockout Protection for VIN
• No Reversed Leakage Current (Reverse Blocking)
• Fault Flag (nFAULT Pin)
• Quick Output Discharge (SGM2591AD/BD/CD)
• 1.2MΩ Pull-Down Resistor at EN Pin
• UL Recognized Component (File No. E532373*)
• Available in a Green SOT-23-5 Package

应用 Application

General Purpose Power Switching
USB Bus/Self-Powered Hub
USB Peripheral
ACPI Power Distribution
Smart Phone
LCD TV