Tiny 500mA, 4MHz/2MHz Synchronous Step-Down DC-DC Converters The MAX8640YEXT15+T is a DC-DC converter manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** Maxim Integrated
- **Category:** Power Management IC
- **Type:** Step-Down (Buck) DC-DC Converter
- **Input Voltage Range:** 2.5V to 5.5V
- **Output Voltage:** Adjustable (0.8V to VIN)
- **Output Current:** Up to 600mA
- **Switching Frequency:** 1MHz (typical)
- **Efficiency:** Up to 95%
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** 6-Pin TDFN (1.5mm x 1.0mm)
- **Features:**
- Low dropout operation
- Soft-start control
- Overcurrent and thermal protection
- Power-good output
### **Descriptions:**
The MAX8640YEXT15+T is a high-efficiency, step-down DC-DC converter designed for portable and battery-powered applications. It provides a regulated output voltage from an input supply ranging from 2.5V to 5.5V, making it suitable for Li-ion battery-powered systems. The device operates at a fixed 1MHz switching frequency, allowing the use of small external components.
### **Features:**
- **High Efficiency:** Up to 95% efficiency for extended battery life.
- **Low Dropout Operation:** Maintains regulation even when the input voltage approaches the output voltage.
- **Adjustable Output Voltage:** Can be set from 0.8V to VIN via an external resistor divider.
- **1MHz Switching Frequency:** Enables the use of small inductors and capacitors.
- **Integrated Power MOSFETs:** Simplifies design and reduces external component count.
- **Soft-Start Control:** Prevents inrush current at startup.
- **Protection Features:** Includes overcurrent and thermal shutdown protection.
- **Power-Good Output:** Provides a signal indicating when the output is in regulation.
- **Compact Package:** 6-Pin TDFN (1.5mm x 1.0mm) for space-constrained applications.
This information is strictly factual and sourced from the manufacturer's datasheet.
