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MAX1771EPA from MAXIM,MAXIM - Dallas Semiconductor

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MAX1771EPA

Manufacturer: MAXIM

12V or Adjustable, High-Efficiency, Low IQ, Step-Up DC-DC Controller

Partnumber Manufacturer Quantity Availability
MAX1771EPA MAXIM 3 In Stock

Description and Introduction

12V or Adjustable, High-Efficiency, Low IQ, Step-Up DC-DC Controller The MAX1771EPA is a step-up DC-DC controller 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 (now Analog Devices)  
- **Part Number:** MAX1771EPA  
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)  
- **Input Voltage Range:** 1.2V to 16.5V  
- **Output Voltage Range:** Adjustable up to 28V  
- **Switching Frequency:** 300kHz (typical)  
- **Maximum Output Current:** Depends on external components  
- **Efficiency:** Up to 94%  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The MAX1771EPA is a high-efficiency, step-up DC-DC controller designed for battery-powered applications. It provides a regulated output voltage from a low input voltage, making it suitable for portable devices. The IC requires an external MOSFET, inductor, and diode to complete the power conversion circuit.  

### **Features:**  
- **Wide Input Voltage Range:** Supports 1.2V to 16.5V inputs.  
- **Adjustable Output Voltage:** Can be set up to 28V using external resistors.  
- **High Efficiency:** Up to 94% efficiency with synchronous rectification.  
- **Low Quiescent Current:** Typically 110µA.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Overvoltage Protection (OVP):** Protects the load from excessive voltage.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation at low input voltages.  
- **300kHz Switching Frequency:** Balances efficiency and component size.  

This information is strictly factual and derived from the manufacturer's datasheet.

Application Scenarios & Design Considerations

12V or Adjustable, High-Efficiency, Low IQ, Step-Up DC-DC Controller

Alternative Part Number

  • LT1107CN8 --: Boost/inverting switching regulator in an 8-pin DIP with similar input voltage range and current capability; a well-known drop-in class alternative for MAX1771 boost applications.
  • MC34063AP1 --: Widely available general-purpose DC-DC switching regulator in DIP-8, supports boost, buck, and inverting topologies; lower performance but a common low-cost substitute.
  • LM2577N-ADJ --: Adjustable boost switching regulator in a DIP package with comparable boost converter function and current handling, suitable for similar step-up designs.

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