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MAX629ESA from MAXIM,MAXIM - Dallas Semiconductor

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MAX629ESA

Manufacturer: MAXIM, MAX, MAXI

28V, Low-Power, High-Voltage, Boost or Inverting DC-DC Converter

Partnumber Manufacturer Quantity Availability
MAX629ESA MAXIM, MAX, MAXI 394 In Stock

Description and Introduction

28V, Low-Power, High-Voltage, Boost or Inverting DC-DC Converter The MAX629ESA is a step-up DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Type:** Step-Up (Boost) DC-DC Converter  
- **Input Voltage Range:** 0.8V to 28V  
- **Output Voltage Range:** Up to 28V (adjustable)  
- **Output Current:** Up to 300mA (depending on input/output conditions)  
- **Switching Frequency:** 300kHz (fixed)  
- **Efficiency:** Up to 94%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  

### **Descriptions:**  
The MAX629ESA is a high-efficiency, low-power, step-up DC-DC converter designed for battery-powered applications. It features an internal 0.5A N-channel MOSFET switch and can generate output voltages higher than the input supply. The device operates with a fixed 300kHz switching frequency, allowing for small external components.  

### **Features:**  
- **Wide Input Voltage Range (0.8V to 28V):** Suitable for single-cell to multi-cell battery applications.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Low Quiescent Current (40µA):** Enhances battery life in portable devices.  
- **Internal MOSFET Switch:** Simplifies design and reduces external component count.  
- **Soft-Start Function:** Prevents inrush current during startup.  
- **Thermal Shutdown Protection:** Safeguards the IC from overheating.  
- **Small Footprint:** 8-pin SOIC package for space-constrained applications.  

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

Application Scenarios & Design Considerations

28V, Low-Power, High-Voltage, Boost or Inverting DC-DC Converter

Alternative Part Number

  • LT1108CS8 --: Pin-compatible boost/inverting switching regulator with similar input range and current capability; widely available and a common drop-in substitute for MAX629 designs.
  • MC34063ACD --: Versatile DC-DC converter controller that can be configured as boost or inverting converter covering the MAX629 function; very low cost and broadly stocked.
  • LM2577S-ADJ --: Adjustable boost regulator with comparable switching frequency and output capability; suitable when layout can accommodate the slightly different pinout.
  • LT1933ES6 --: High-voltage boost converter in a small package with comparable input/output range and switching frequency, suitable as a functional substitute for the MAX629 boost regulator.
  • MC34063A --: Widely available general-purpose DC-DC switching regulator that can be configured as a boost converter covering similar voltage and current levels, offering a low-cost alternative.
  • LT1308BCS8 --: Boost converter in SO-8 with comparable input voltage range and switching frequency; widely used as a MAX629 substitute.
  • TPS61040DBVR --: Boost converter in SOT-23 with similar boost topology and low-voltage input capability; suitable for low-power step-up designs.

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