MAX867 Datasheet | Maxim Integrated

Description The MAX866 and MAX867 are ultra-small, high-efficiency, CMOS, step-up, DC-DC switching regulators for 1-cell battery-powered systems. The MAX866 accepts a positive input voltage between 0.8V and VOUT and converts it to a higher, pin-selectable output voltage of 3.3V or 5V. The MAX867 adjustable version accepts 0.8V to 6.0V input voltages and generates a higher adjustable output voltage in the 2.7V to 6.0V range. Typical efficiencies are greater than 80%. Typical no-load supply current is 100µA (1µA in shutdown). The MAX866/MAX867 bine ultra-low quiescent supply current and high efficiency to give maximum battery life. Its high switching frequency permits the use of small, low-cost inductors and capacitors. Additionally, internal peak-current limiting protects the IC. MAX866/MAX867 ______________Ordering Information ________________________Applications Pagers Remote Controls Detectors 1-Cell Battery-Operated Equipment Backup Supplies PART MAX866C/D MAX866ESA MAX866EUA MAX867C/D MAX867ESA MAX867EUA TEMP. RANGE 0°C to +70°C -40°C to +85°C -40°C to +85°C 0°C to +70°C -40°C to +85°C -40°C to +85°C PIN-PACKAGE Dice- 8 SO 8 µMAX Dice- 8 SO 8 µMAX - Dice are tested at TA = +25°C only. __________Typical Operating Circuit INPUT 0.8V TO VOUT _________________Pin Configurations TOP VIEW SHDN 3/5 1 2 8 7 LX GND OUT LBI 330µH OUTPUT 5V OR 3.3V ON/OFF SHDN LX MBRS0520LTI OR 1N5817 47µF REF 3 LBO 4 MAX866 6 5 SO/µMAX MAX866 3V/5V SELECT LOW-BATTERY DETECTOR INPUT 3/5 LBI REF 0.22µF LBO LOW-BATTERY DETECTOR OUTPUT OUT SHDN FB 1 2 8 7 LX GND OUT LBI REF 3 LBO 4 6 5 SO/µMAX ________________________________________________________________ Maxim Integrated Products For free samples & the latest literature: http://.maxim-ic., or phone 1-800-998-8800 3.3V/5V or Adjustable-Output, Single-Cell DC-DC Converters MAX866/MAX867 ABSOLUTE MAXIMUM RATINGS Supply Voltage (OUT to GND) -0.3V, +7V Switch Voltage (LX to...