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TDA3681JR from PH

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TDA3681JR

Manufacturer: PH

Multiple voltage regulator with switch and ignition buffer

Partnumber Manufacturer Quantity Availability
TDA3681JR PH 8 In Stock

Description and Introduction

Multiple voltage regulator with switch and ignition buffer The TDA3681JR is a component manufactured by PH (Philips Semiconductors, now NXP Semiconductors). Here are the factual details about its specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** PH (Philips Semiconductors/NXP Semiconductors)  
- **Part Number:** TDA3681JR  
- **Package:** SOIC (Small Outline Integrated Circuit)  
- **Type:** Automotive IC (likely for power management or signal processing)  
- **Operating Voltage:** Typically used in automotive 12V/24V systems (exact range may vary)  
- **Operating Temperature:** Designed for automotive-grade applications (-40°C to +125°C or similar)  

### **Descriptions:**
- The TDA3681JR is an integrated circuit designed for automotive applications, possibly related to power supply regulation, motor control, or signal conditioning.  
- It is housed in an SOIC package, making it suitable for surface-mount PCB designs.  
- The component is likely used in vehicle electronic systems such as dashboard controls, lighting, or infotainment.  

### **Features:**
- **Automotive-Grade:** Compliant with automotive industry standards (AEC-Q100 may apply).  
- **Robust Design:** Built to withstand harsh automotive environments (voltage spikes, temperature variations).  
- **Low Power Consumption:** Optimized for efficiency in vehicle electronics.  
- **Protection Features:** May include overvoltage, reverse polarity, or thermal protection.  

For exact electrical characteristics and application details, refer to the official datasheet from NXP/Philips.

Application Scenarios & Design Considerations

Multiple voltage regulator with switch and ignition buffer

Alternative Part Number

  • TDA3681J --: Same TDA3681J voltage regulator family from the original Philips/NXP lineage; the 'R' variant is a reel/ordering suffix, so the base part is functionally equivalent and widely available.
  • L4970A --: High-current step-down switching regulator with comparable input voltage range and output current capability, suitable as a functional substitute in similar power supply designs.
  • LM2678T-ADJ --: Adjustable high-efficiency buck regulator rated for similar current and voltage, commonly used as an alternative where the TDA3681JR is unavailable.

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