The LTC1474CS8-5 is a high-efficiency, low quiescent current step-down DC/DC converter manufactured by Linear Technology, now part of Analog Devices. It is designed to meet the requirements of battery-powered, portable devices by offering a compact and energy-efficient power management solution.
Key Features:
- High Efficiency: The LTC1474CS8-5 is capable of converting input voltages from 4.5V to 20V down to a fixed 5V output with high efficiency, making it suitable for a wide range of supply sources.
- Low Quiescent Current: It boasts a very low no-load quiescent current of only 10µA, which is ideal for battery-operated devices where power conservation is critical.
- Adjustable Switching Frequency: The switching frequency can be set from 100kHz to 200kHz with an external resistor, allowing the designer to optimize the trade-off between efficiency and external component size.
- Low Dropout Operation: The LTC1474CS8-5's Burst Mode® operation enables it to maintain output regulation with a very low input-to-output voltage differential, which is beneficial during battery discharge.
Applications:
- Portable Computers
- Cellular Phones
- Medical Instruments
- Handheld Instruments
Technical Specifications:
| Parameter |
Value |
| Output Voltage |
5V Fixed |
| Input Voltage Range |
4.5V to 20V |
| No-Load Quiescent Current |
10µA |
| Switching Frequency |
100kHz to 200kHz (Adjustable) |
| Package Type |
8-Lead SOIC |
The LTC1474CS8-5 is a versatile and reliable choice for designers seeking an efficient power management solution for their space-constrained and power-sensitive applications. Its low quiescent current and adjustable frequency provide flexibility and performance that can be tailored to meet the specific needs of various electronic devices.