STANSON ST1938
The ST1938 is a step-up DC/DC converter for white LED driver with over voltage protection. The device can driver one to four LEDs in series from a single cell Lithium Ion battery. The ST1938 operates at 0.8MHz and from low input voltages as low as 1.5V; apply to Lithium-Ion powered systems.| Part No. | ST1938 |
|---|---|
| Datasheet | ST1938 Download |
| Manufacturer |  STANSON |
| Description | DC-DC Step-Up Converter |
| Buy | Stock & Price |
DESCRIPTION
Internal functions include current limiting; thermal shutdown; OVP and soft-start to prevent damage operate status. A low 95mV reference voltage minimizes power loss in the current setting resistor for better efficiency. The ST1938 is available in small package SOT-23-6L PIN CONFIGURATION SOT23-6LAPPLICATIONS
z Battery Power Equipment z Notebook Computers z PDA z Cellular Phone PART MARKINGFEATURES
z Current Source with Over Voltage Protection z Fast 0.8MHz Switching Frequency z High Efficiency up to 87% z Drives up to Four LEDs From 3.2V Supply z Drives up to Six LEDs From a 5V Supply z Low Quiescent Current z Disconnects LEDs i
