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MAX1544ETL+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX1544ETL+T

Manufacturer: MAXIM, MAX

Dual-Phase, Quick-PWM Controller for AMD Hammer CPU Core Power Supplies

Partnumber Manufacturer Quantity Availability
MAX1544ETL+T,MAX1544ETLT MAXIM, MAX 14657 In Stock

Description and Introduction

Dual-Phase, Quick-PWM Controller for AMD Hammer CPU Core Power Supplies The MAX1544ETL+T is a step-down DC-DC converter manufactured by **MAXIM Integrated** (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 2.6V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.8V to VIN  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 1MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 40-Pin TQFN (6mm x 6mm)  
- **Features:**  
  - Synchronous rectification for high efficiency  
  - Low dropout operation  
  - Internal soft-start  
  - Overcurrent and thermal protection  
  - Power-good output  

### **Descriptions & Features:**  
The MAX1544ETL+T is a high-efficiency, step-down DC-DC converter designed for applications requiring a compact power solution with high performance. It integrates synchronous rectification to minimize power loss and supports a wide input voltage range, making it suitable for battery-powered and portable devices.  

Key features include:  
- **Adjustable Output Voltage** (via external resistors)  
- **High Efficiency** (up to 95%)  
- **1MHz Fixed Switching Frequency** (reduces external component size)  
- **Integrated Power MOSFETs** (simplifies design)  
- **Protection Features** (overcurrent, thermal shutdown)  

This device is commonly used in **portable electronics, networking equipment, and industrial applications**.  

(Note: For exact datasheet details, refer to the official MAXIM/Analog Devices documentation.)

Application Scenarios & Design Considerations

Dual-Phase, Quick-PWM Controller for AMD Hammer CPU Core Power Supplies

Alternative Part Number

  • ISL6262CRZ --: Two-phase CPU core voltage regulator controller with similar functionality and pin-compatible architecture, widely used as a MAX1544 replacement in notebook CPU VR designs.
  • LTC3736EUF --: Dual-phase synchronous step-down controller with integrated drivers, comparable current-sensing and VID control features suitable for CPU core power.
  • TPS51511RSA --: Single-phase synchronous buck controller for CPU/GPU core rails with similar voltage-mode control and compact QFN package, usable in lower-current applications.
  • NCP5386MNR2G --: Multi-phase buck controller for CPU/GPU core power with similar control architecture and electrical ratings, usable as an alternative regulator IC.
  • LTC3810EUH --: High-voltage synchronous buck controller offering comparable regulation performance and flexibility for similar power supply applications.

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