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TPS2551DBVT from TI,Texas Instruments

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TPS2551DBVT

Manufacturer: TI, N/A

Adjustable, Active High, Constant-Current, Current-Limited Power-Distribution Switch 6-SOT-23 -40 to 85

Partnumber Manufacturer Quantity Availability
TPS2551DBVT TI, N/A 200127 In Stock

Description and Introduction

Adjustable, Active High, Constant-Current, Current-Limited Power-Distribution Switch 6-SOT-23 -40 to 85 The TPS2551DBVT is a power-distribution switch manufactured by Texas Instruments. Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** Texas Instruments  
- **Part Number:** TPS2551DBVT  
- **Package:** SOT-23-5 (DBV)  
- **Input Voltage Range:** 2.5V to 6.5V  
- **Continuous Current Limit:** Adjustable (default 0.5A)  
- **On-Resistance (RDS(ON)):** 70mΩ (typical)  
- **Current Limit Accuracy:** ±15% (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Quiescent Current:** 20µA (typical)  
- **Shutdown Current:** 1µA (typical)  
- **Fault Response:** Latch-off or auto-retry (selectable)  

### **Descriptions:**  
The TPS2551DBVT is a precision adjustable current-limited power-distribution switch designed for USB ports and other hot-swappable applications. It provides protection against overcurrent and short-circuit conditions. The device features an enable pin for power control and supports both latch-off and auto-retry fault responses.  

### **Features:**  
- Adjustable current limit (0.5A default)  
- Low on-resistance (70mΩ typical)  
- Reverse current blocking  
- Thermal shutdown protection  
- Under-voltage lockout (UVLO)  
- Fast overcurrent response (<2µs)  
- Selectable fault response (latch-off or auto-retry)  
- Small SOT-23-5 package  

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

Application Scenarios & Design Considerations

Adjustable, Active High, Constant-Current, Current-Limited Power-Distribution Switch 6-SOT-23 -40 to 85

Alternative Part Number

  • MIC2005A-1YM5-TR --: Pin-compatible current-limited power switch in SOT-23-5 with adjustable current limit, similar to the TPS2551 function.
  • AP2552W6-7 --: Adjustable current-limited load switch in SOT-26 with enable and fault flag, a close functional substitute for the TPS2551.
  • NCP380LSNAJAAT1G --: Current-limiting power distribution switch in SOT-23-5 with adjustable limit and thermal protection, suitable as a drop-in style alternative.
  • MAX4995AAUT+T --: Programmable current-limit switch in SOT-23-6 with similar protection functions, providing a cross-vendor option for the TPS2551DBVT.

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