MAX889SESA+T

The MAX889 inverting charge pump delivers a regulated
negative output voltage at loads of up to 200mA. The
device operates with inputs from 2.7V to 5.5V to produce
an adjustable, regulated output from -2.5V to -VIN.
The MAX889 is available with an operating frequency of
2MHz (T version), 1MHz (S version), or 0.5MHz (R version). The higher switching frequency devices allow the
use of smaller capacitors for space-limited applications. The lower frequency devices have lower quiescent current.
The MAX889 also features a 0.1µA logic-controlled
shutdown mode and is available in an 8-pin SO package. An evaluation kit, MAX889SEVKIT, is available.


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    SPECIFICATION

    ♦ 200mA Output Current
    ♦ Up to 2MHz Switching Frequency
    ♦ Small Capacitors (1µF)
    ♦ +2.7V to +5.5V Input Voltage Range
    ♦ Adjustable Regulated Negative Output
    (-2.5V to -VIN)
    ♦ 0.1µA Logic-Controlled Shutdown
    ♦ Low 0.05Ω Output Resistance (in regulation)
    ♦ Soft-Start and Foldback Current Limited
    ♦ Short-Circuit and Thermal Shutdown Protected
    ♦ 8-Pin SO Package