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TPS61221DCKR from TI,Texas Instruments

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TPS61221DCKR

Manufacturer: TI

Tiny Low Input Voltage Boost Converter 6-SC70 -40 to 85

Partnumber Manufacturer Quantity Availability
TPS61221DCKR TI 44740 In Stock

Description and Introduction

Tiny Low Input Voltage Boost Converter 6-SC70 -40 to 85 The TPS61221DCKR is a boost converter manufactured by Texas Instruments (TI). Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 1.8V to 5.5V  
- **Output Voltage Range:** Adjustable from 2.5V to 5.5V  
- **Output Current:** Up to 300mA (depending on input/output conditions)  
- **Switching Frequency:** 1.2MHz (typical)  
- **Efficiency:** Up to 95%  
- **Quiescent Current:** 18µA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SC-70 (6-pin)  

### **Descriptions:**  
The TPS61221DCKR is a high-efficiency, low-quiescent-current boost converter designed for battery-powered applications. It supports a wide input voltage range and provides a regulated output voltage with minimal external components.  

### **Features:**  
- **Low Start-up Voltage:** Operates down to 1.8V input  
- **Automatic Power Save Mode:** Improves efficiency at light loads  
- **Integrated Synchronous Rectifier:** Reduces external component count  
- **Soft-Start Function:** Prevents inrush current during startup  
- **Over-Temperature Protection:** Ensures safe operation  

This information is sourced from the official Texas Instruments datasheet for the TPS61221DCKR.

Application Scenarios & Design Considerations

Tiny Low Input Voltage Boost Converter 6-SC70 -40 to 85

Alternative Part Number

  • LTC3525ESC6-3.3 --: Pin-compatible boost converter in a small SC70 package with fixed 3.3V output, similar input range and current capability, suitable drop-in for many TPS61221DCKR designs.
  • MCP1640BT-I/CHY --: Low-voltage boost converter with 3.3V output option in SOT-23-6, comparable efficiency and quiescent current, widely available alternative with different series naming.
  • NCP1402SN33T1G --: Boost regulator with 3.3V fixed output in SOT-23-5, similar switching frequency and load range, a cost-effective alternative from a different manufacturer family.

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