E-CMOS ELP3322
The ELP3322 is a 1MHz PWM boost switching regulator designed for constant-current white LED driver applications. The ELP3322 can drive a string of up to 8 white LEDs in series, ensuring uniform brightness and Eliminating several ballast resistors. The ELP3322 implements a constant frequency 1MHz PWM control scheme.| Part No. | ELP3322 |
|---|---|
| Datasheet | ELP3322 Download |
| Manufacturer |  E-CMOS |
| Description | Constant Current Switching Regulator |
| Buy | Stock & Price |
GENERAL DESCRIPTION
The high frequency PWM operation also saves board space by reducing external component sizes. To improve efficiency, the feedback voltage is set to 200 mV, which reduces the power dissipation in the current setting resistor.FEATURES
●High Efficiency: 92%●1MHzFixed-Frequency PWM Operation
●Maximum Output Voltage up to 29V
●Operating Range : 2.2V to 5.5V
●Shutdown Supply Current:<1uA
●Available in SOT23-6 Package
●Built-in 29V Over Voltage Protection
●Minimize the External Component
●RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
●WLED Backlight driver●OLED Backlight driver
●PDA
●MID/PTV Ordering Information ELP3322NN XX X B3：SOT23-6 R：Tape & Reel Device ELP3322NNB3R Marking LPS FhYWX Y:Production year W:Production week X:Production batch Package SOT23-6 Shipping 3K/REEL Pin
DESCRIPTION
Pin NameDESCRIPTION
1 SW Switch Pin. Connect this Pin to inductor and catch diode. Minimize the track area to reduce EMI. 2 GND Ground Pin 3 FB Feedback Reference Voltage Pin. Series connect a resistor between WLED and ground as a current sense.
