Description

The LT1576IS8-5SYNC is a 200kHz monolithic buck mode switching regulator in the category of DC Switching Regulators. It features a 1.5A switch on the die along with all the necessary oscillator, control, and logic circuitry. The topology is current mode for fast transient response and good loop stability. This model is a modified version of the industry standard LT1376 optimized for noise-sensitive applications.

Specifications and features

- Constant 200kHz Switching Frequency
- 1.21V Reference Voltage
- Fixed 5V Output Option
- Easily Synchronizable
- Uses All Surface Mount Components
- Inductor Size Reduced to 15µH
- Saturating Switch Design: 0.2Ω
- Effective Supply Current: 1.16mA
- Shutdown Current: 20µA
- Cycle-by-Cycle Current Limiting
- Fused Lead SO-8 Package

Application Scenarios

- Portable Computers
- Battery-Powered Systems
- Battery Charger
- Distributed Power

Comparison

1. The LT1576IS8-5SYNC is a highly efficient switching regulator with a constant 200kHz switching frequency.

2. It features a 1.21V reference voltage and offers a fixed 5V output option.

3. This model is easily synchronizable and uses all surface mount components.

4. The inductor size has been reduced to 15µH, making it more compact.

5. It has a saturating switch design with a low resistance of 0.2Ω.

6. The effective supply current is only 1.16mA, and the shutdown current is 20µA.

7. It provides cycle-by-cycle current limiting for enhanced safety.

8. The package is fused with a lead SO-8 design.

There are no specified disadvantages for the LT1576IS8-5SYNC model.