LTC1682 - Doubler Charge Pumps with Low Noise Linear Regulator

Features
  • Low Output Noise: 60µVRMS (100kHz BW)
  • Adjustable or Fixed Boosted Output
  • Adjustable Output Voltage Range: 2.5V to 5.5V
  • Fixed Output Voltages: 3.3V, 5V
  • Wide Input Voltage Range: 1.8V to 4.4V
  • Uses Small Ceramic Capacitors
  • No Inductors Required
  • Output Current up to 50mA
  • 550kHz Switching Frequency
  • Low Operating Current: 150µA
  • Low Shutdown Current: 1µA
  • Internal Thermal Shutdown and Current Limiting
  • Available in 8-Pin MSOP and SO Packages
Typical Application

Applications
  • VCO Power Supplies in Cellular Phones
  • 2-Way Pagers
  • Wireless PCMCIA Cards
  • Portable Medical Instruments
  • Low Power Data Acquisition
  • Remote Transmitters
Packaging

Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC1682CMS8-3.3#PBFMS-8C$2.30$1.90
LTC1682CMS8-3.3#TRPBFMS-8C$1.96
LTC1682CMS8-5#PBFMS-8C$2.30$1.90
LTC1682CMS8-5#TRPBFMS-8C$1.96
LTC1682CMS8#PBFMS-8C$2.30$1.90
LTC1682CMS8#TRPBFMS-8C$1.96
LTC1682CS8-3.3#PBFSO-8C$2.00$1.70
LTC1682CS8-3.3#TRPBFSO-8C$1.76
LTC1682CS8-5#PBFSO-8C$2.00$1.70
LTC1682CS8-5#TRPBFSO-8C$1.76
LTC1682CS8#PBFSO-8C$2.00$1.70
LTC1682CS8#TRPBFSO-8C$1.76
LTC1682IMS8-3.3#PBFMS-8I$2.65$2.25
LTC1682IMS8-3.3#TRPBFMS-8I$2.31
LTC1682IMS8-5#PBFMS-8I$2.65$2.25
LTC1682IMS8-5#TRPBFMS-8I$2.31
LTC1682IMS8#PBFMS-8I$2.65$2.25
LTC1682IMS8#TRPBFMS-8I$2.31
LTC1682IS8-3.3#PBFSO-8I$2.35$2.00
LTC1682IS8-3.3#TRPBFSO-8I$2.06
LTC1682IS8-5#PBFSO-8I$2.35$2.00
LTC1682IS8-5#TRPBFSO-8I$2.06
LTC1682IS8#PBFSO-8I$2.35$2.00
LTC1682IS8#TRPBFSO-8I$2.06
Demo Boards
Part NumberDescriptionPrice
DC249A-ALTC1682CMS8 | Doubler Charge Pump with Linear Regulator, Adjustable, 1.8 to 4.4Vin, 2.5 to 5.5Vout @ 50mAContact Factory
DC249A-BLTC1682CMS8-5 | Doubler Charge Pump with Linear Regulator, Fixed, 2.7 to 4.4Vin, 5.0Vout @ 50mAContact Factory
DC249A-CLTC1682CMS8-3.3 | Doubler Charge Pump with Linear Regulator, Fixed, 2.0 to 4.4Vin, 3.3Vout @ 50mAContact Factory
DC332ALTC1682CMS8 | White LED Driver, 3.0V to 4.2V Input, 75mA Output (5 White LEDs)Contact Factory
Datasheet
Design Note
Reliability Data
LT Journal
Related Product
LTC1682/LTC1682-3.3/LTC1682-5 - Doubler Charge Pumps with Low Noise Linear Regulator
LTC1682 Package Drawing LTC1682
DN231 - Tiny Regulators Drive White LED Backlights
R402 Reliability Data
Sep 1999 Low Noise Boost VCO Power Supply for Portable Applications
LTC1682 Footprints and Symbols