NCP1729 Switched Capacitor Voltage Inverter The NCP1729 is a CMOS charge pump voltage inverter that is designed for operation over an input voltage range of 1.15 V to 5.5 V with an output current capability in excess of 50 mA. The operating current consumption is only 122 A, and a power saving shutdown http://onsemi.com input is provided to further reduce the current to a mere 0.4 A. The device contains a 35 kHz oscillator that drives four low resistance MARKING MOSFET switches, yielding a low output resistance of 26 and a DIAGRAM voltage conversion efficiency of 99%. This device requires only two 6 external 3.3F capacitors for a complete inverter making it an ideal TSOP−6 solution for numerous battery powered and board level applications. (SOT23−6) EADYW The NCP1729 is available in the space saving TSOP−6 package. SN SUFFIX 1 CASE 318G 1 Features • EAD = Device Code Operating Voltage Range of 1.15 V to 5.5 V Y = Year • Output Current Capability in Excess of 50 mA W = Work Week • Low Current Consumption of 122 A • Power Saving Shutdown Input for a Reduced Current of 0.4 A PIN CONNECTIONS • Operation at 35 kHz • Low Output Resistance of 26 V 1 out 6 C+ • Space Saving TSOP−6 Package • V 2 5 SHDN Pb−Free Package is Available in C− 3 4 GND Typical Applications • LCD Panel Bias • (Top View) Cellular Telephones • Pagers • Personal Digital Assistants ORDERING INFORMATION • Electronic Games • DevicePackageShipping † Digital Cameras • Camcorders NCP1729SN35T1 TSOP−6 3000 / • Tape & Reel Hand Held Instruments NCP1729SN35T1G TSOP−6 3000 / (Pb−Free) Tape & Reel −Vout †For information on tape and reel specifications, including part orientation and tape sizes, please 1 6 refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. V 2 in 5 3 4 This device contains 77 active transistors. Figure 1. Typical Application Semiconductor Components Industries, LLC, 2004 1 Publication Order Number: June, 2004 − Rev. 3NCP1729/D
