MAX1621EEE+ QSOP-16 Power Management Specialized – PMIC SMD IC

Features 1.8V to 20V Battery Input Voltage Automatic Disable when Display Logic is Shut Down Extremely Small QSOP Package 32-Level Internal DAC SMBus Serial Interface (MAX1621) Positive or Negative Output Voltage Pin Configuration Pin Description PIN NAME FUNCTION MAX1621 1 SDA System Management Bus Serial-Data Input and Open-Drain Output 2 SCL System Management Bus Serial-Clock Input 3 BATT Battery Voltage-Sense Input 4 SUS* System Management Bus Suspend-Mode Input (active-low) 5 POK Power OK Voltage-Sense Input, 1V threshold 6 REF Reference Voltage Output. Bypass REF with 0.1µF to AGND. 7 POL Logic-Level Input. POL selects output voltage polarity: high = positive boost, low = negative boost. 8 LCDON* Open-Drain Output. LCDON* controls LCD with external PNP. 9 FB Feedback Voltage Input 10 DOUT DAC Output Voltage 11 VDD IC Input Supply, 3.0V to 5.5V 12 AGND Analog Ground 13 PGND Power Ground 14 LX Switching-Voltage Sense Input 15 DLO External Transistor Drive, Low 16 DHI External Transistor Drive, High Specifications Product Attribute Attribute Value Product Category: Power Management Specialised – PMIC Series: MAX1621 Type: Digital Power Management Mounting Style: SMD/SMT Package/Case: QSOP-16 Input Voltage Range: 1.8 V to 20 V Output Voltage Range: – 27 V to 27 V Minimum Operating Temperature: – 40 C Maximum Operating Temperature: + 85 C Input Current: 150 uA Input Voltage, Max: 20 V Input Voltage, Min: 1.8 V Maximum Output Voltage: 27 V Pd – Power Dissipation: 667 mW Applications Notebook Computers Palmtop Computers Personal Digital Assistants Portable Data-Collection Terminals MAX1621EEE+ Datasheet