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MAX866

Maxim
Part Number MAX866
Manufacturer Maxim
Description 3.3V/5V or Adjustable-Output / Single-Cell DC-DC Converters
Published May 2, 2005
Detailed Description 19-0374; Rev 1; 5/96 KIT ATION EVALU BLE A IL A V A 3.3V/5V or Adjustable-Output, Single-Cell DC-DC Converters _______...
Datasheet PDF File MAX866 PDF File

MAX866
MAX866

Overview
19-0374; Rev 1; 5/96 KIT ATION EVALU BLE A IL A V A 3.
3V/5V or Adjustable-Output, Single-Cell DC-DC Converters ____________________________Features o 0.
8V to 6.
0V Input Supply Voltage o 0.
9V Guaranteed Start-Up Supply Voltage o >80% Efficiency Over Wide Load Range o 100µA No-Load Battery Current (VOUT = 3.
3V) o 1µA Shutdown Mode o Up to 250kHz Switching Frequency o ±1.
5% Reference Tolerance o Low-Battery Detector (LBI/LBO) o Available in Ultra-Small 8-Pin µMAX Package (1.
11mm high) o Circuit Fits in 0.
2in2 _______________General 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 combine 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/5...


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