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MAX1989MEE from MAXIM,MAXIM - Dallas Semiconductor

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MAX1989MEE

Manufacturer: MAXIM, MAX

Multichannel Remote/Local Temperature Sensors

Partnumber Manufacturer Quantity Availability
MAX1989MEE MAXIM, MAX 8600 In Stock

Description and Introduction

Multichannel Remote/Local Temperature Sensors The MAX1989MEE is a step-down DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Input Voltage Range:** 4V to 28V  
- **Output Voltage Range:** Adjustable from 0.8V to 5.5V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-pin QSOP  

### **Descriptions:**
The MAX1989MEE is a synchronous step-down DC-DC converter designed for high-efficiency power conversion in applications requiring a regulated output voltage from a wide input range. It integrates high-side and low-side MOSFETs, reducing external component count. The device features pulse-width modulation (PWM) operation for optimal efficiency and includes protection features such as overcurrent and thermal shutdown.

### **Features:**
- **Wide Input Voltage Range (4V to 28V)** – Suitable for various power sources.  
- **High Efficiency (Up to 95%)** – Minimizes power loss.  
- **Integrated Power MOSFETs** – Simplifies design and reduces external components.  
- **Adjustable Output Voltage (0.8V to 5.5V)** – Configurable for different applications.  
- **500kHz Switching Frequency** – Balances efficiency and component size.  
- **Overcurrent and Thermal Protection** – Enhances system reliability.  
- **Soft-Start Function** – Reduces inrush current during startup.  
- **Low Quiescent Current** – Improves light-load efficiency.  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Multichannel Remote/Local Temperature Sensors

Alternative Part Number

  • ADM1021AARQZ --: Remote/local temperature sensor with SMBus interface, functionally similar to the MAX1989 and available in a comparable QSOP package.
  • LM95235CIMM --: Remote diode temperature sensor with 2-wire interface, suitable as a functional replacement in thermal monitoring applications.
  • EMC1403-A-AIZZL --: Multi-channel temperature sensor with SMBus interface, offering similar remote/local sensing capability for board-level thermal monitoring.
  • LM89CIMM --: Dual-channel temperature sensor with SMBus/I2C interface, comparable accuracy and small package, suitable drop-in for thermal sensing.
  • NCT210R --: Remote diode temperature sensor with SMBus interface, similar monitoring function and low-cost alternative for system thermal management.
  • NCT1008DMT3R2G --: Remote temperature sensor with local and remote channels and SMBus interface, offering similar monitoring functionality in a small package.

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