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ST1938

STANSON
Part Number ST1938
Manufacturer STANSON
Description DC-DC Step-Up Converter
Published Sep 3, 2018
Detailed Description ST1938 DC-DC Step-Up Converter for White LED Driver DESCRIPTION The ST1938 is a step-up DC/DC converter for white LED d...
Datasheet PDF File ST1938 PDF File

ST1938
ST1938

Overview
ST1938 DC-DC Step-Up Converter for White LED Driver DESCRIPTION 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.
Internal functions include current limiting; thermal shutdown; OVP and soft-start to prevent damage operate status.
The ST1938 operates at 0.
8MHz and from low input voltages as low as 1.
5V; apply to Lithium-Ion powered systems.
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 SOT23-6L APPLICATIONS z Battery Power Equipment z Notebook Computers z PDA z Cellular Phone PART MARKING FEATURES 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...


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