| Description & Applications | 25 V/25 mA PFM Step−Up DC−DC Converter • 85% Efficiency at VOUT = 25 V, IOUT = 25 mA, VIN = 5.0 V • Low Operating Current of 15 A (Not Switching) • Low Shutdown Current of 0.3 A • Low Startup Voltage of 1.8 V Typical at 0 mA • Output Voltage up to 25 V with Built−in 26 V MOSFET Switch • PFM Switching Frequency up to 1.0 MHz • Chip Enable • Output Voltage Soft−Start • Feedback Pin Open/Short Circuit Protection • Input Undervoltage Lockout • Thermal Shutdown •Low Profile L and Minimum External Parts • Micro Miniature TSOP−5 Package • Pb−Free Package is Available • OLCD Bias • White LED Driver • LED Driver • Personal Digital Assistants (PDA) • Digital Still Camera • Cellular Telephone • Hand−Held Games • Hand−Held Instrument |