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MAX1774EEI+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX1774EEI+

Manufacturer: MAXIM, MAX

Dual, High-Efficiency, Step-Down Converter with Backup Battery Switchover

Partnumber Manufacturer Quantity Availability
MAX1774EEI+,MAX1774EEI MAXIM, MAX 218 In Stock

Description and Introduction

Dual, High-Efficiency, Step-Down Converter with Backup Battery Switchover The MAX1774EEI+ is a step-up DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its 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 2V to 5.5V  
- **Output Current:** Up to 250mA (depending on input/output conditions)  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-pin QSOP (Quad Flat Small Outline Package)  
- **Shutdown Current:** <1µA  

### **Descriptions:**  
The MAX1774EEI+ is a high-efficiency, step-up DC-DC converter optimized for low-input-voltage applications. It is designed to generate a regulated output voltage from input sources as low as 0.7V, making it suitable for battery-powered systems. The device integrates a synchronous rectifier for improved efficiency and includes features like soft-start and undervoltage lockout (UVLO) for protection.  

### **Features:**  
- **Wide Input Voltage Range:** Operates from 0.7V to 5.5V.  
- **Adjustable Output Voltage:** Configurable from 2V to 5.5V.  
- **Synchronous Rectification:** Enhances efficiency and reduces external component count.  
- **Low Quiescent Current:** Improves battery life in portable applications.  
- **Soft-Start Function:** Limits inrush current during startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low-voltage conditions.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Compact Package:** 28-pin QSOP for space-constrained designs.  

This information is strictly factual and sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Dual, High-Efficiency, Step-Down Converter with Backup Battery Switchover

Alternative Part Number

  • LTC3417AIFE#PBF --: Dual synchronous step-down DC-DC converter with similar input range and current capability, pin-compatible footprint in TSSOP, good drop-in candidate.
  • TPS62420DRCR --: Dual buck converter with comparable voltage and current ratings, widely available and cost-effective alternative for similar power designs.
  • ISL78228ARZ --: Dual channel step-down regulator with similar electrical characteristics and package options, suitable functional replacement.
  • TPS65217CRSLR --: Integrated power management IC with multiple buck converters and LDOs, suitable as a functional alternative for multi-rail power designs.
  • LT3507EUHF --: Triple step-down switching regulator with integrated LDO, offering similar multi-output power management capability.
  • ADP5054ACPZ-R7 --: Quad buck regulator with integrated LDOs, providing comparable multi-channel power management in a compact package.

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