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MAX1848EKA from MAX,MAXIM - Dallas Semiconductor

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MAX1848EKA

Manufacturer: MAX, MAXIM

White LED Step-Up Converter in SOT23

Partnumber Manufacturer Quantity Availability
MAX1848EKA MAX, MAXIM 3076 In Stock

Description and Introduction

White LED Step-Up Converter in SOT23 The MAX1848EKA 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 factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 0.8V to 5.5V  
- **Output Voltage Range:** Adjustable from 2.5V to 5.5V  
- **Output Current:** Up to 300mA (depending on input/output conditions)  
- **Switching Frequency:** 500kHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOT23  

### **Descriptions:**  
The MAX1848EKA is a low-power, step-up DC-DC converter designed for battery-powered applications. It integrates a high-efficiency, low-noise, fixed-frequency PWM boost converter, making it suitable for portable devices requiring regulated voltage from low input sources.  

### **Features:**  
- **Low Start-Up Voltage:** Operates down to 0.8V  
- **Adjustable Output Voltage:** Set via external resistors  
- **Internal Power MOSFET:** Simplifies design and reduces external components  
- **Low Quiescent Current:** 20µA (typical)  
- **Pulse-Width Modulation (PWM) Operation:** Ensures stable performance  
- **Overcurrent Protection:** Prevents damage under fault conditions  
- **Small Footprint:** 8-pin SOT23 package for space-constrained applications  

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

Application Scenarios & Design Considerations

White LED Step-Up Converter in SOT23

Alternative Part Number

  • LT1937ES5 --: Step-up DC-DC converter for white LED backlight in a small SOT-23 package, functionally similar to the MAX1848 with comparable input range and boost topology.
  • AP3015AKTR-G1 --: Micropower step-up converter in SOT-23-5, suitable as a boost LED driver replacement with similar switching frequency and current capability.
  • TPS61040DBVR --: Low-power boost converter in SOT-23-5 widely used for LED backlight and bias supplies, offering a close functional match to the MAX1848.

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