Datasheet4U Logo Datasheet4U.com

ST1937 - DC-DC Step-Up Converter

Datasheet Summary

Description

ST1937 is a step-up DC/DC converter for white LED driver with constant current.

The device can driver one to four LEDs in series from a single cell Lithium ion battery.

Internal functions include current limiting; thermal shutdown and soft-start to prevent damage operate status.

Features

  • z Fast 1.2MHz Switching Frequency z High Efficiency up to 85% z Drives up to Four LEDs From 3.2V Supply z Low Quiescent Current z Internal Over Temperature and Current Limiting Shutdown Function z Internal Soft-Star.

📥 Download Datasheet

Datasheet preview – ST1937

Datasheet Details

Part number ST1937
Manufacturer STANSON
File Size 193.47 KB
Description DC-DC Step-Up Converter
Datasheet download datasheet ST1937 Datasheet
Additional preview pages of the ST1937 datasheet.

📁 Similar Datasheet

  • ST1900C - PHASE CONTROL THYRISTORS Hockey Puk Version (International Rectifier)
  • ST19AF08 - Smartcard MCU With 4 additional I/0 (ST Microelectronics)
  • ST19CF68 - Smartcard MCU With 512 Bits Modular Arithmetic Processor (ST Microelectronics)
  • ST19GF34 - Smartcard MCU With 34 KBytes EEPROM (ST Microelectronics)
  • ST19KF16 - Smartcard MCU With 1088 Bits Modular Arithmetic Processor (ST Microelectronics)
  • ST19NM34 - Smartcard MCU With 34 Kbytes High Density EEPROM (ST Microelectronics)
  • ST19NR66 - Dual Contactless Smartcard MCU (ST Microelectronics)
  • ST19RF08 - Smartcard MCU With 8176 Bytes EEPROM for Contactless/Contact Applications (ST Microelectronics)
  • ST19SF02 - Smartcard MCU With 2 KBytes of EEPROM (ST Microelectronics)
  • ST19SF04 - Smartcard MCU With 4 KBytes of EEPROM (ST Microelectronics)
Other Datasheets by STANSON
  • ST1938 - DC-DC Step-Up Converter
  • ST13P10 - P-Channel Enhancement Mode MOSFET
  • ST13P10D - P-Channel Enhancement Mode MOSFET
  • ST16N10 - N-Channel Enhancement Mode MOSFET
  • ST18ADN - N-Channel Enhancement Mode MOSFET
  • ST18N10D - N-Channel Enhancement Mode MOSFET

Full PDF Text Transcription

Click to expand full text
ST1937 DC-DC Step-Up Converter for White LED Driver DESCRIPTION ST1937 is a step-up DC/DC converter for white LED driver with constant current. The device can driver one to four LEDs in series from a single cell Lithium ion battery. Internal functions include current limiting; thermal shutdown and soft-start to prevent damage operate status. ST1937 DC/DC converter operates at 1.2MHz and low output capacitor as small as 0.22uF; apply to Lithium-Ion powered systems. A low 100mV reference voltage minimizes power loss in the current setting resistor for better efficiency. PIN CONFIGURATION SOT23-5L SOT-353 ( SC-70-5L ) APPLICATIONS z Battery Powered Devices z Digital Camera z PDA z GPS z Hand Held Communication Equipment z MP3/4 PART MARKING ORDERING INFORMATION FEATURES z Fast 1.
Published: |