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MAX1544ETL-T from MAXIM,MAXIM - Dallas Semiconductor

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MAX1544ETL-T

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX1544ETL-T,MAX1544ETLT MAXIM 7336 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). Below are its key specifications, descriptions, and features based on factual data:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX1544ETL-T  
- **Type:** Step-Down DC-DC Converter  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Range:** Adjustable (0.8V to VIN)  
- **Output Current:** Up to 1.2A  
- **Switching Frequency:** 1MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 40-Pin TQFN (6mm x 6mm)  
- **Topology:** Synchronous Buck Converter  

### **Descriptions:**  
The MAX1544ETL-T is a high-efficiency, step-down DC-DC converter designed for portable applications requiring a regulated power supply. It integrates synchronous rectification to minimize external components and improve efficiency. The device operates at a fixed 1MHz switching frequency, allowing for compact inductor and capacitor selection.  

### **Features:**  
- **High Efficiency (up to 95%)**  
- **1.2A Output Current Capability**  
- **Adjustable Output Voltage (0.8V to VIN)**  
- **1MHz Fixed Switching Frequency**  
- **Internal Synchronous Rectifier (No Schottky Diode Needed)**  
- **Low Dropout Operation (100% Duty Cycle)**  
- **Power-Good Output Monitor**  
- **Soft-Start and Overcurrent Protection**  
- **Thermal Shutdown Protection**  
- **Small 40-Pin TQFN Package**  

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

Application Scenarios & Design Considerations

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

Alternative Part Number

  • ISL6566CRZ --: Multi-phase PWM buck controller with similar VRM functionality and comparable pinout, widely used as a MAX1544 substitute in CPU core supplies.
  • ADP3198JCPZ --: Multi-phase synchronous buck controller for CPU VRMs with comparable current-sense and VID features, suitable drop-in functional replacement.
  • NCP5386MNR2G --: Multi-phase buck controller offering similar voltage regulation and protection features, a viable alternative when MAX1544 is unavailable.
  • ISL6262CRZ --: Two-phase PWM controller for CPU core voltage regulation with similar functionality and pin-compatible architecture, widely used as a MAX1544 replacement.
  • ADP3208JCPZ-RL --: Programmable multi-phase synchronous buck controller suitable for CPU power delivery, functionally equivalent to the MAX1544 family.

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