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MAX1778EUG from MAX,MAXIM - Dallas Semiconductor

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MAX1778EUG

Manufacturer: MAX, MAXI, MAXIM, MAXIM

Quad-Output TFT LCD DC-DC Converters with Buffer

Partnumber Manufacturer Quantity Availability
MAX1778EUG MAX, MAXI, MAXIM, MAXIM 3350 In Stock

Description and Introduction

Quad-Output TFT LCD DC-DC Converters with Buffer The MAX1778EUG 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:**
- **Manufacturer:** Maxim Integrated (now Analog Devices)
- **Part Number:** MAX1778EUG  
- **Package:** 24-TSSOP  
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage Range:** Adjustable (up to 28V)  
- **Output Current:** Up to 300mA (depending on input voltage)  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**
The MAX1778EUG is a high-efficiency, step-up DC-DC converter designed for low-input-voltage applications. It is optimized for battery-powered systems and can generate higher output voltages from very low input sources, such as single-cell batteries. The device integrates a power switch and control circuitry to minimize external component count.

### **Features:**
- **Wide Input Voltage Range (0.7V to 5.5V)** – Suitable for single-cell or multi-cell battery inputs.  
- **Adjustable Output Voltage (Up to 28V)** – Configurable via external resistors.  
- **High Efficiency (Up to 90%)** – Optimized for power-sensitive applications.  
- **Internal Power MOSFET** – Reduces external component requirements.  
- **500kHz Switching Frequency** – Allows for compact inductor and capacitor selection.  
- **Low Quiescent Current (40µA typical)** – Enhances battery life in standby mode.  
- **Soft-Start Function** – Prevents inrush current during startup.  
- **Thermal Shutdown Protection** – Safeguards the device from overheating.  
- **Undervoltage Lockout (UVLO)** – Ensures proper operation under low input voltage conditions.  

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

Application Scenarios & Design Considerations

Quad-Output TFT LCD DC-DC Converters with Buffer

Alternative Part Number

  • TPS61170DRVR --: Pin-compatible boost converter in a similar small package with comparable input/output voltage range and current capability, widely available and often used as a drop-in substitute.
  • LT1932ES6 --: Constant-current boost LED driver with similar functionality and compact SOT-23 package, suitable for backlight applications where the MAX1778 is used.
  • AP3012KTR-G1 --: Low-cost boost converter with comparable switching frequency and output capability, offering a cost-effective alternative for general step-up regulation.
  • LT3580EMS8E#PBF --: Boost/inverting converter with comparable switching frequency and current rating, offering a functional alternative for similar power supply designs.
  • TPS61120PW --: Multi-channel TFT-LCD power supply IC with similar boost plus charge-pump architecture, widely available and often used as a MAX1778 substitute.
  • LT1944EMS --: Dual step-up converter with comparable input range and current capability, suitable for LCD bias supply designs.
  • RT9271GQW --: Compact boost converter for LCD panel bias supplies, offering similar functionality at lower cost.
  • TPS61100PW --: Similar multi-output TFT LCD bias power supply with boost and charge pump, widely available and pin-compatible in function.
  • LT1945EMS --: Dual boost/inverting converter suitable for LCD bias applications, comparable input range and output capability.
  • ISL97671IRZ --: Integrated LCD bias power management IC offering similar boost and charge pump outputs for display panels.

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