General Description
LD7205 is a high efficiency boost converter with internal soft start, ideal to drive two strands of white LEDs for backlight and flashlight applications. It combines independent programmable current source to provide optimal current matching of output current. LD7205 implements the constant frequency of 1MHz PWM control scheme. The high frequency PWM operation saves the board space and minimizes external component counts.
LD7205 is available in a space-saving QFN-16L 3x3 package.
Features
• Shutdown current<1µA
• Built-in soft start
• 1MHz current mode PWM control
• 40V Internal Power NMOS
• Drive up to 6 LEDs/string
• Internal under-voltage lockout
• Internal 36V OVP protection
• Internal 3A current limit
• Over Temperature Protection
• Support PWM Dimming control
Applications
• Photo Flash LED Driver
• Cellular phones, PDAs, Smart phones
• Portable instruments
Typical Application
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