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KSR1003 from FSC,Fairchild Semiconductor

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KSR1003

Manufacturer: FSC, Fairchild, Toshiba, SAMSUNG

NPN (SWITCHING APPLICATIONS)
Partnumber Manufacturer Quantity Availability
KSR1003 FSC, Fairchild, Toshiba, SAMSUNG 35410 In Stock

Description and Introduction

NPN (SWITCHING APPLICATIONS) **Part Number:** KSR1003  
**Manufacturer:** SAMSUNG  

### **Specifications:**  
- **Type:** Power Management IC (PMIC)  
- **Function:** Voltage regulation and power management  
- **Input Voltage Range:** 3.0V to 5.5V  
- **Output Voltage Range:** Adjustable (typically 1.2V to 3.3V)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** QFN (Quad Flat No-Lead)  
- **Package Size:** 3mm x 3mm  
- **Efficiency:** Up to 95%  

### **Descriptions:**  
The KSR1003 is a high-efficiency power management IC designed for portable and battery-powered applications. It integrates multiple voltage regulators and control functions to optimize power consumption in electronic devices.  

### **Features:**  
- Low quiescent current for improved battery life  
- Overcurrent and overvoltage protection  
- Thermal shutdown protection  
- Adjustable output voltage via external resistors  
- Compact form factor for space-constrained designs  

(Note: Specifications may vary based on application and datasheet revisions.)

Application Scenarios & Design Considerations

NPN (SWITCHING APPLICATIONS)

Alternative Part Number

  • 2N3904 --: General-purpose NPN transistor with similar small-signal switching characteristics, widely available and low cost.
  • BC547 --: Common NPN small-signal transistor suitable for general switching and amplification, comparable to the KSR1003 in typical applications.
  • MMBT3904 --: SMD NPN transistor with similar electrical ratings, useful as a surface-mount alternative when board layout allows.

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