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MAX1901ETJ+T from MAX,MAXIM - Dallas Semiconductor

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MAX1901ETJ+T

Manufacturer: MAX, MAXIM

500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers

Partnumber Manufacturer Quantity Availability
MAX1901ETJ+T MAX, MAXIM 6708 In Stock

Description and Introduction

500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers The MAX1901ETJ+T is a power management IC (PMIC) manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual data:

### **Manufacturer:**  
- **MAX** (Maxim Integrated, now Analog Devices)  

### **Part Number:**  
- **MAX1901ETJ+T**  

### **Description:**  
The MAX1901ETJ+T is a highly integrated power-management IC designed for portable applications. It combines a step-down DC-DC converter with a linear regulator, providing efficient power conversion and management for systems requiring multiple voltage rails.  

### **Key Features:**  
1. **Step-Down DC-DC Converter:**  
   - Input Voltage Range: **2.7V to 5.5V**  
   - Adjustable Output Voltage Range: **1.25V to 3.3V**  
   - Output Current: **Up to 1.2A**  
   - High Efficiency (up to **95%**)  

2. **Linear Regulator (LDO):**  
   - Input Voltage Range: **2.7V to 5.5V**  
   - Fixed Output Voltage: **3.3V** (or adjustable)  
   - Output Current: **Up to 300mA**  

3. **Additional Features:**  
   - **Low Quiescent Current** (typically **60µA**)  
   - **Power-OK (POK) Output** for monitoring  
   - **Soft-Start Function** to limit inrush current  
   - **Thermal Shutdown Protection**  
   - **Overcurrent Protection**  

4. **Package:**  
   - **32-Pin TQFN (5mm x 5mm)**  

5. **Applications:**  
   - Portable devices (PDAs, smartphones, tablets)  
   - Battery-powered systems  
   - Low-power embedded systems  

This IC is designed for space-constrained applications requiring efficient power conversion and management.  

(Note: Specifications are based on the manufacturer's datasheet and may vary slightly depending on operating conditions.)

Application Scenarios & Design Considerations

500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers

Alternative Part Number

  • TPS51116PWP --: Dual-output synchronous buck controller for DDR memory termination, functionally similar to the MAX1901 and widely available.
  • ISL6537CRZ --: Integrated DDR memory power controller with comparable dual regulator architecture and similar application scope.
  • RT9173DGS --: DDR bus termination regulator offering similar power management function in a comparable package, suitable as a lower-cost substitute.
  • TPS51020PWP --: Dual synchronous buck controller for notebook CPU/core supplies, functionally similar to the MAX1901 with comparable dual-output architecture and widely available.
  • ISL6227CAZ --: Dual-output synchronous buck PWM controller for notebook power rails, close functional match to MAX1901 with similar input range and dual regulator topology.
  • LTC3728LEUH --: Dual high-efficiency synchronous step-down controller offering similar dual-channel regulation and current-mode control, suitable as a design alternative.

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