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MAX16945
30mA Inverting Charge Pump in SOT23 for EMI-Sensitive Automotive Applications

Low-EMI, Automotive-Qualified Charge Pump in SOT23 Package that Operates at 105°C


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Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 172kB)
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The MAX16945 ultra-small, monolithic, CMOS charge-pump voltage inverter accepts an input voltage ranging from +1.4V to +5.5V. This device features an ultra-low 12Ω output resistance, permitting loads of up to 30mA at +105°C with maximum efficiency. The MAX16945 operates at a frequency of 125kHz, allowing use of small external components. Its small external components, micropower shutdown mode, and wide temperature range make this device ideal for both automotive and industrial applications.

Oscillator control circuitry and four power MOSFET switches are included on-chip. The MAX16945 comes in a 6-pin SOT23 package and operates over -40°C to +105°C.

Key Features   Applications/Uses
  • +1.4V to +5.5V Input Voltage Range
  • 30mA Guaranteed Output Current at +105°C
  • Slew-Rate Limited to Reduce EMI
  • 0.1µA Logic-Controlled Shutdown
  • Low 12Ω Output Resistance
  • Startup Current Limited
  • 6-Pin SOT23 Package

 
  • Automotive and Industrial Equipment
  • GaAsFET Bias Supplies
  • Handy-Terminals, PDAs
  • Negative Supply from +5V or +3.3V Logic Supplies
  • Small LCD Panels

    Key Specifications:  Charge Pumps
    Part Number Topology VIN
    (V)
    VIN
    (V)
    ICC
    (mA)
    Unadj. VOUT
    (V)
    IOUT
    (A)
    Oper. Freq.
    (kHz)
    Features Package/Pins Smallest Available Pckg.
    (mm2)
    Oper. Temp.
    (°C)
    min max max typ max w/pins
    MAX16945  Inverter 1.4 5.5 1.7 -2xVIN 0.03 125 Shutdown
    SOT/6
    9
    -55 to +125
    -40 to +105
    See All Charge Pumps (48)

    Diagram
    MAX16945: Typical Operating Circuit
    Typical Operating Circuit

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    Document Ref.: 19-4241; Rev 0; 2008-09-10
    This page last modified: 2009-08-17


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