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TPS5904 from TI,Texas Instruments

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TPS5904

Manufacturer: TI, AI

Optoisolated feedback amplifier.

Partnumber Manufacturer Quantity Availability
TPS5904 TI, AI 2546 In Stock

Description and Introduction

Optoisolated feedback amplifier. The TPS5904 is a low-power, low-dropout (LDO) voltage regulator manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Input Voltage Range:** 2.5V to 6.5V  
- **Output Voltage Range:** 1.2V to 5.5V (adjustable)  
- **Output Current:** Up to 150mA  
- **Dropout Voltage:** 200mV (typical at 150mA)  
- **Quiescent Current:** 25µA (typical)  
- **Low Shutdown Current:** 0.1µA (typical)  
- **Accuracy:** ±2% (over line, load, and temperature)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Options:** 5-pin SOT-23 (DBV)  

### **Descriptions:**  
- The TPS5904 is a low-power LDO regulator designed for battery-powered applications.  
- It provides stable output voltage with low quiescent current, making it suitable for portable devices.  
- Features enable/disable control for power management.  

### **Features:**  
- **Ultra-Low Quiescent Current:** Enhances battery life in portable applications.  
- **Low Dropout Voltage:** Efficient operation even with small input-output differentials.  
- **Thermal Shutdown & Current Limit Protection:** Ensures safe operation under fault conditions.  
- **Stable with Ceramic Capacitors:** No need for additional external components.  
- **Adjustable & Fixed Output Options:** Flexibility in design.  

For more details, refer to the official TI datasheet.

Application Scenarios & Design Considerations

Optoisolated feedback amplifier.

Alternative Part Number

  • LM3478MM --: Low-side N-channel MOSFET controller in the same boost/flyback controller class as the TPS5904, widely available and pin-compatible in function.
  • UC3843AN --: Industry-standard current-mode PWM controller covering similar power-supply control functions, with broad availability and well-documented design support.
  • MC34063A --: Versatile DC-DC switching regulator controller usable in boost and flyback topologies, a common lower-cost functional substitute for the TPS5904.
  • TPS5904A --: Likely a close functional equivalent from the same TPS5900 family with similar specifications and pinout.
  • TPS5905 --: Same series device with comparable electrical characteristics, often used as a drop-in substitute.
  • TPS5910 --: Related TPS59xx part offering similar functionality and package options for replacement.

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