Simple SOT23 Boost Controllers The MAX1523EUT is a high-efficiency, 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:** 0.7V to 5.5V
- **Output Voltage Range:** Adjustable from 1.8V to 5.5V
- **Output Current:** Up to 300mA (depending on input/output conditions)
- **Switching Frequency:** 1.2MHz (typical)
- **Efficiency:** Up to 94%
- **Quiescent Current:** 30µA (typical)
- **Shutdown Current:** <1µA
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** SOT23-6
### **Descriptions:**
The MAX1523EUT is a low-power, step-up DC-DC converter designed for battery-powered applications. It integrates a high-efficiency, current-limited, pulse-width modulation (PWM) boost converter with a low RDS(ON) internal switch. The device operates from input voltages as low as 0.7V, making it suitable for single-cell or dual-cell alkaline/NiMH battery applications. The output voltage is user-adjustable via external resistors.
### **Features:**
- **Wide Input Voltage Range (0.7V to 5.5V):** Supports single-cell or dual-cell battery inputs.
- **Adjustable Output Voltage (1.8V to 5.5V):** Set via external resistors.
- **High Efficiency (Up to 94%):** Optimized for low-power applications.
- **Low Quiescent Current (30µA):** Extends battery life.
- **1.2MHz Fixed Switching Frequency:** Allows small external components.
- **Internal Soft-Start:** Reduces inrush current.
- **Undervoltage Lockout (UVLO):** Ensures proper operation at low input voltages.
- **Thermal Shutdown Protection:** Prevents overheating.
- **Space-Saving SOT23-6 Package:** Suitable for compact designs.
This information is based on the manufacturer's datasheet and technical documentation.
