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MAX1586BETM+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX1586BETM+

Manufacturer: MAXIM, MAX

High-Efficiency, Low-IQ PMICs with Dynamic Core for PDAs and Smartphones

Partnumber Manufacturer Quantity Availability
MAX1586BETM+,MAX1586BETM MAXIM, MAX 383 In Stock

Description and Introduction

High-Efficiency, Low-IQ PMICs with Dynamic Core for PDAs and Smartphones The MAX1586BETM+ is a high-efficiency, step-down DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.8V to VIN  
- **Output Current:** Up to 600mA  
- **Switching Frequency:** 1MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin TDFN (3mm x 3mm)  

### **Descriptions:**  
The MAX1586BETM+ is a synchronous step-down DC-DC converter optimized for portable applications. It integrates low RDS(ON) MOSFETs for high efficiency and compact power solutions. It operates in pulse-width modulation (PWM) mode for stable performance under load variations.  

### **Features:**  
- **High Efficiency:** Up to 95% due to synchronous rectification.  
- **Low Quiescent Current:** 30µA (typical) in shutdown mode.  
- **Internal Soft-Start:** Reduces inrush current.  
- **100% Duty Cycle Operation:** Supports dropout conditions.  
- **Overcurrent and Thermal Protection:** Enhances reliability.  
- **Small Footprint:** 10-pin TDFN package for space-constrained designs.  

This device is commonly used in battery-powered applications, portable electronics, and embedded systems requiring efficient power conversion.  

(Source: Maxim Integrated datasheet)

Application Scenarios & Design Considerations

High-Efficiency, Low-IQ PMICs with Dynamic Core for PDAs and Smartphones

Alternative Part Number

  • LTC3569EUD#PBF --: Multi-output step-down DC-DC converter with similar multi-rail power management function in a QFN package, suitable as a functional substitute for the MAX1586 PMIC.
  • TPS650250RHBR --: Integrated power management IC with multiple buck converters and LDOs for portable applications, offering comparable multi-rail regulation capability.
  • ISL91211AIRZ-T --: Multi-phase/multi-output regulator IC that can replace the MAX1586 in power management roles with similar voltage regulation features.
  • TPS65217CRSLR --: Integrated power management IC with multiple buck converters and LDOs, suitable for processor power rails similar to the MAX1586B.
  • LP3971SQX-3.3/NOPB --: Power management unit for application processors with multiple regulated outputs, a functional alternative for the MAX1586B.
  • DA9063-00HO1 --: Configurable multi-rail PMIC with buck and LDO outputs, offering comparable system power management functionality.

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