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MAX860IUA+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX860IUA+

Manufacturer: MAXIM, MAX

50mA, Frequency-Selectable, Switched-Capacitor Voltage Converters

Partnumber Manufacturer Quantity Availability
MAX860IUA+,MAX860IUA MAXIM, MAX 3420 In Stock

Description and Introduction

50mA, Frequency-Selectable, Switched-Capacitor Voltage Converters The **MAX860IUA+** is a product from **Maxim Integrated** (now part of Analog Devices). Below are its specifications, descriptions, and features based on available factual information:

### **Manufacturer:**  
- **MAXIM (Maxim Integrated)**  

### **Specifications:**  
- **Part Number:** MAX860IUA+  
- **Package:** 8-pin μMAX (MicroMAX)  
- **Type:** Step-Up (Boost) DC-DC Converter  
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage Range:** Adjustable (up to 5.5V)  
- **Output Current:** Up to 300mA  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Shutdown Current:** <1µA  

### **Descriptions:**  
- The MAX860IUA+ is a high-efficiency, low-power, step-up DC-DC converter designed for battery-powered applications.  
- It is optimized for low input voltage operation, making it suitable for single-cell or dual-cell battery systems.  
- The device features a low quiescent current, improving battery life in portable applications.  

### **Features:**  
- **Low Start-Up Voltage (0.7V)** – Enables operation from weak or nearly depleted batteries.  
- **Adjustable Output Voltage** – Set via external resistors.  
- **Internal MOSFET Switch** – Simplifies design and reduces external component count.  
- **Low Shutdown Current (<1µA)** – Extends battery life in standby mode.  
- **500kHz Switching Frequency** – Allows for small external components.  
- **Current-Limiting and Thermal Shutdown Protection** – Enhances reliability.  

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

Application Scenarios & Design Considerations

50mA, Frequency-Selectable, Switched-Capacitor Voltage Converters

Alternative Part Number

  • LT1054CS8#PBF --: Pin-compatible switched-capacitor voltage converter/inverter in SO-8 with similar function and current capability, widely available and well documented.
  • ICL7660SCPA --: Classic charge-pump voltage inverter offering similar inversion/doubling function; lower current but a common drop-in for many MAX860 applications.
  • TC7662BCOA --: Switched-capacitor voltage converter in SO-8 that provides inversion and doubling functions comparable to the MAX860, with good availability.
  • ICL7660ACPA --: Classic charge-pump voltage inverter with the same inverting/voltage-doubler function; lower current rating but suitable for light-load MAX860 applications.
  • TC7660HEOA --: High-frequency charge-pump inverter in SO-8 that improves on the ICL7660 with smaller capacitors and lower quiescent current, fitting MAX860 sockets.

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