Description

The MIC2297-38YMLTR is a 600KHz PWM boost-switching regulator designed specifically for driving 6-10 series white LEDs. It features an internal 40V switch and a guaranteed switch current of 1.2A, making it ideal for applications that require high brightness and eliminate the need for ballast resistors.

Specifications and features

• Input voltage range: 2.5V to 10V
• Output voltage: Up to 40V
• Switch current: 1.2A
• PWM operation: 600KHz
• Trimmed 200mV feedback voltage
• Output over voltage protection (fixed or adjustable)
• PWM Brightness Control
• DAC Brightness Control
• Line regulation: <1%
• Shutdown current: 1µA
• Over temperature protection
• UVLO
• Package: 2.5mm x 2.5mm MLF™-10L
• Junction temperature range: –40°C to +125°C

Application Scenarios

The MIC2297-38YMLTR is commonly used in the following applications:

• PDAs
• GPS systems
• Smart phones
• Mini PCs
• Digital cameras
• IP phones
• LED flashlights

Comparison

- High boost-switching frequency of 600KHz

- Internal 40V switch for efficient LED driving

- Guaranteed switch current of 1.2A for driving 6-10 series white LEDs

- Output over voltage protection for added safety

- PWM and DAC brightness control options

- Wide input voltage range of 2.5V to 10V

- Compact MLF™-10L package for space-constrained applications

- Wide junction temperature range of –40°C to +125°C

- Not suitable for applications requiring more than 10 series white LEDs