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TPS2149IDGNR from TI,Texas Instruments

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TPS2149IDGNR

Manufacturer: TI

3.3V LDO + Dual Switch For USB Hubs, Active-Low Enables

Partnumber Manufacturer Quantity Availability
TPS2149IDGNR TI 309 In Stock

Description and Introduction

3.3V LDO + Dual Switch For USB Hubs, Active-Low Enables The TPS2149IDGNR is a power-distribution switch manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)  
- **Part Number:** TPS2149IDGNR  
- **Package:** 8-Pin HVSSOP (DGNR)  
- **Input Voltage Range (VIN):** 2.7V to 5.5V  
- **Continuous Output Current (IOUT):** 1.5A  
- **On-Resistance (RDS(ON)):** 80mΩ (typical) at 5V  
- **Quiescent Current (IQ):** 30µA (typical)  
- **Shutdown Current (ISD):** 1µA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Overcurrent Protection Threshold:** Adjustable (default 2.1A typical)  
- **Reverse Current Blocking:** Yes  
- **Fault Reporting:** Open-drain flag for overcurrent/thermal shutdown  

### **Descriptions:**
The TPS2149IDGNR is a single-channel, load switch with adjustable current limiting and integrated protection features. It is designed for applications requiring controlled power distribution, such as USB ports, hot-swap systems, and portable electronics. The device includes reverse current blocking to prevent backflow when the output voltage exceeds the input.

### **Features:**
- **Adjustable Current Limit:** Configurable via an external resistor.  
- **Fast Overcurrent Response:** Limits inrush current during startup.  
- **Thermal Shutdown Protection:** Prevents damage from excessive heat.  
- **Low Quiescent Current:** Enhances power efficiency in battery-powered systems.  
- **Controlled Turn-On:** Reduces inrush current with adjustable slew rate.  
- **Reverse Current Blocking:** Prevents reverse current flow when disabled.  
- **Small Form Factor:** 8-pin HVSSOP package for space-constrained designs.  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

3.3V LDO + Dual Switch For USB Hubs, Active-Low Enables

Alternative Part Number

  • TPS2051BDGNR --: Single-channel current-limited power switch in the same MSOP-8 PowerPAD package with similar voltage and current ratings, suitable as a functional replacement.
  • MIC2026-1YM --: Dual-channel current-limiting power distribution switch with comparable operating voltage and current capability, from a different vendor and series for easy distinction.
  • AP2553W6-7 --: Adjustable current-limited power switch offering similar load-switch functionality and voltage range, an alternative from a different manufacturer and naming series.

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