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MAX8538EEI+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX8538EEI+T

Manufacturer: MAXIM, MAIMX

Dual-Synchronous Buck Controllers for Point-of-Load, Tracking, and DDR Memory Power Supplies

Partnumber Manufacturer Quantity Availability
MAX8538EEI+T,MAX8538EEIT MAXIM, MAIMX 1123 In Stock

Description and Introduction

Dual-Synchronous Buck Controllers for Point-of-Load, Tracking, and DDR Memory Power Supplies The MAX8538EEI+T is a low-dropout (LDO) linear regulator manufactured by Maxim Integrated (MAIMX). Below are its key specifications, descriptions, and features based on factual data:

### **Specifications:**  
- **Input Voltage Range:** 2.5V to 6.5V  
- **Output Voltage Range:** Adjustable from 1.25V to 5.5V (fixed options also available)  
- **Output Current:** 500mA (guaranteed)  
- **Dropout Voltage:** 120mV (typical) at 500mA load  
- **Accuracy:** ±1.5% (over line, load, and temperature)  
- **Quiescent Current:** 85µA (typical)  
- **Shutdown Current:** <1µA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC (Exposed Pad)  

### **Descriptions:**  
- The MAX8538EEI+T is a high-performance LDO regulator designed for low-noise, low-power applications.  
- It features a low dropout voltage, making it suitable for battery-powered devices.  
- Includes thermal shutdown and current-limit protection for reliability.  

### **Features:**  
- **Low Dropout:** 120mV at 500mA load.  
- **Low Noise:** Optimized for noise-sensitive applications.  
- **Enable Pin:** Allows shutdown mode (<1µA current).  
- **Stable with Ceramic Capacitors:** Requires only 1µF (min) output capacitance.  
- **Fast Transient Response:** Suitable for dynamic loads.  
- **Protection Features:** Thermal shutdown and current limiting.  

This information is strictly based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Dual-Synchronous Buck Controllers for Point-of-Load, Tracking, and DDR Memory Power Supplies

Alternative Part Number

  • LTC3728LEGN#PBF --: Dual synchronous step-down controller with similar function and pin-compatible family, from a different series and manufacturer.
  • TPS40132RGER --: Dual-channel synchronous buck controller offering comparable features and a clearly different naming series.
  • ISL6442IAZ --: Dual PWM step-down controller with similar electrical characteristics, from a distinct series and vendor.
  • TPS40210DGQR --: Wide-input-voltage current-mode boost/flyback controller in a similar small package, commonly used as a functional substitute for MAX8538-class controllers.
  • LT1932ES6#TRPBF --: Compact constant-current boost converter IC that can replace the MAX8538 in many low-power LED/boost applications with comparable electrical behavior.
  • LM3478MM/NOPB --: Low-side N-channel MOSFET boost controller with wide input range, offering similar control functionality and a readily available alternative footprint.

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