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MAX868EUB from MAXIM,MAXIM - Dallas Semiconductor

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MAX868EUB

Manufacturer: MAXIM, MAX

Regulated / Adjustable -2x Inverting Charge Pump

Partnumber Manufacturer Quantity Availability
MAX868EUB MAXIM, MAX 2163 In Stock

Description and Introduction

Regulated / Adjustable -2x Inverting Charge Pump The MAX868EUB is a step-up DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX868EUB  
- **Package:** 10-pin µMAX (microMAX)  
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage Range:** Adjustable (up to 5.5V)  
- **Output Current:** Up to 50mA  
- **Switching Frequency:** 500kHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Shutdown Current:** <1µA  

### **Descriptions:**
The MAX868EUB is a low-power, step-up DC-DC converter designed for applications requiring a regulated output voltage from a low input voltage source. It is optimized for battery-powered devices and portable electronics where space and efficiency are critical.  

### **Features:**
- **Low Start-Up Voltage:** Operates down to 0.7V input.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **High Efficiency:** Up to 90% conversion efficiency.  
- **Low Quiescent Current:** 25µA (typical).  
- **Internal MOSFET Switch:** Simplifies design.  
- **Soft-Start Capability:** Reduces inrush current.  
- **Thermal Shutdown Protection:** Prevents overheating.  
- **Small Footprint:** 10-pin µMAX package saves board space.  

This information is sourced from the official Maxim Integrated datasheet for the MAX868EUB.

Application Scenarios & Design Considerations

Regulated / Adjustable -2x Inverting Charge Pump

Alternative Part Number

  • LT1054CS8 --: Pin-compatible switched-capacitor voltage converter/inverter in SO-8 with similar function and current capability; widely available and well documented.
  • ICL7660SCPA --: Classic CMOS voltage converter/inverter offering similar inverting and doubling functions; DIP-8 package, easy drop-in for prototyping though pinout should be verified.
  • TC7660COA --: Low-cost CMOS charge-pump voltage converter in SO-8 with comparable inversion/doubling capability; good second-source option when exact MAX868 features are not critical.
  • ICL7660CSA --: Classic CMOS voltage converter/inverter offering the same inverting and doubling functions, available in SO-8, a common drop-in style alternative.
  • TC7660EOA --: Charge-pump voltage converter in SO-8 with comparable inversion/doubling performance and low quiescent current, suitable replacement for MAX868EUB.

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