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MAX1561ETA-T from MAXIM,MAXIM - Dallas Semiconductor

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MAX1561ETA-T

Manufacturer: MAXIM, MAX

High-Efficiency, 26V Step-Up Converters for Two to Six White LEDs

Partnumber Manufacturer Quantity Availability
MAX1561ETA-T,MAX1561ETAT MAXIM, MAX 7895 In Stock

Description and Introduction

High-Efficiency, 26V Step-Up Converters for Two to Six White LEDs The MAX1561ETA-T is a high-efficiency, step-up DC-DC converter manufactured by **MAXIM Integrated** (now part of Analog Devices). Below are its key specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage Range:** Adjustable from 2.5V to 5.5V (fixed or externally set)  
- **Output Current:** Up to **600mA** (depending on input/output conditions)  
- **Switching Frequency:** **1MHz** (fixed)  
- **Efficiency:** Up to **95%**  
- **Package:** **8-pin TDFN (3mm x 3mm)**  
- **Operating Temperature Range:** **-40°C to +85°C**  
- **Shutdown Current:** **<1µA**  

### **Descriptions:**  
The MAX1561ETA-T is a **boost (step-up) DC-DC converter** optimized for **low-input-voltage applications**, such as single-cell or dual-cell alkaline/NiMH battery-powered devices. It integrates a **synchronous rectifier** for high efficiency and includes **soft-start** and **undervoltage lockout (UVLO)** protection.  

### **Features:**  
- **True Shutdown Mode** (disconnects load from input)  
- **Internal Synchronous Rectifier** (improves efficiency)  
- **Adjustable or Fixed Output Voltage** (factory preset options)  
- **Low Quiescent Current:** **30µA** (typical)  
- **Overcurrent and Thermal Protection**  
- **Small Footprint** (suitable for space-constrained designs)  

This device is commonly used in **portable electronics, USB power supplies, and energy-harvesting applications**.  

Would you like additional details on any specific parameter?

Application Scenarios & Design Considerations

High-Efficiency, 26V Step-Up Converters for Two to Six White LEDs

Alternative Part Number

  • LT1937ES5#TRMPBF --: Step-up white LED driver in a small SOT-23 package with similar boost topology and current regulation, widely used as a MAX1561 replacement.
  • TPS61165DRVR --: Boost converter LED driver with integrated switch and PWM dimming, functionally comparable to the MAX1561 in portable backlight applications.
  • AP3031KTR-G1 --: White LED step-up converter with internal switch and overvoltage protection, offering a cost-effective alternative with similar electrical characteristics.
  • AP3019AKTR-G1 --: White LED boost converter with similar input voltage range and constant-current output, available in a small SOT-23 package and suitable for backlight driver replacement.

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