Preliminary Datasheet
LP3360
4-Channel Constant Current White LED Driver
General Description
The LP3360 is a low-dropout bias supply for white LEDs is
a high-performance alternative to the simple ballast
resistors used in conventional white LED designs. It
supports 4 white LEDs with regulated constant current for
uniform intensity. The LP3360 maintains low dropout
current regulators. The LP3360 requires a 45mV dropout
at a 20mA load on each output to match the LED brightness.
The brightness of LEDs can be tuned through a pulse width
modulated signal at the PWM pin,the PWM frequency from
200Hz to 10KHz and the Duty from 0 to 100%.
The LP3360 is available in a SOT23-6 or MSOP-8
package.
Features
2.7V to 6V Input Voltage
20mA maxim sink current
PWM tuned LED brightness through PWM pin
Soft Start Function
Built-in Thermal Protection
I
Q
<1uA in Shutdown
SOT23-6 or MSOP-8 Package
RoHS Compliant and 100% Lead (Pb)-Free
Typical Application Circuit
Vin
6
5
4
D2
GND
3
LP3360
D4
D3
PW M
1
PWM
Order Information
LP3360 -
□ □ □
F: Pb-Free
Package Type
B6: SOT23-6
MS:MSOP-8
Marking Information
Please see website.
Applications
LCD Panel
Cellular and Smart mobile phone
PDA/DSC
PMP
LP3360 – Ver. 1.2 Datasheet
Feb.-2008
2
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POWER [ LOWPOWER SEMICONDUCTOR INC ]
