LP3321 Overview
The LP3321 is a 1.0MHz PWM boost switching regulator designed for constant-current white LED driver applications. The LP3321 can drive a string of up to 11 white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors. The LP3321 implements a constant frequency 1.0MHz PWM control scheme.
LP3321 Key Features
- Up to 94% efficiency
- Shut-down current:<1uA
- Output voltage Up to 37V
- Internal pensation, Soft-start
- Support down to 1% Dimming Duty Cycle
- 1.0MHz fixed frequency switching
- High switch on current:1.5A
- Available in SOT23-6&TDFN-6(2mm×2mm)