Description

The MIC2205YMLTR is a DC switching regulator, specifically designed for constant current white LED driver applications. It has a maximum output voltage of 34V and can drive a string of up to 8 white LEDs in series, ensuring uniform brightness without the need for additional ballast resistors. This component operates at a frequency of 1.2MHz and has a switch current of over 500mA.

Specifications and features

• Input voltage: 2.5V to 10V
• Output voltage: Up to 34V
• Switch current: Over 500mA
• Operating frequency: 1.2 MHz
• Feedback voltage: 95mV
• Output Overvoltage Protection (OVP)
• Options for 15V, 24V, and 34V OVP
• Line and load regulation: <1%
• Shutdown current: <1µA
• Over-temperature protection
• UVLO
• Package options: Thin SOT-23-5, 8-lead 2mm × 2mm MLF™
• Junction temperature range: -40°C to +125°C

Application Scenarios

• White LED driver for backlighting in cell phones, PDAs, GPS systems, digital cameras, MP3 players, and IP phones
• Photo flash LED driver
• LED flashlights
• Constant current power supplies

Comparison

• Optimized for constant current white LED driver applications
• Supports a maximum output voltage of 34V
• Easily drives a string of up to 8 white LEDs in series
• Ensures uniform brightness without the need for additional ballast resistors
• Wide input voltage range of 2.5V to 10V
• High switch current of over 500mA
• Provides output overvoltage protection
• Low shutdown current of <1µA
• Includes over-temperature protection and UVLO features
• Available in different package options
• Operates within a temperature range of -40°C to +125°C

• None identified