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Documents LM2662, LM2663
SNVS002E – JANUARY 1999 – REVISED OCTOBER 2014 LM266x Switched Capacitor Voltage Converter
1 Features 3 Description The LM2662/LM2663 CMOS charge-pump voltage
converter inverts a positive voltage in the range of 1.5
V to 5.5 V to the corresponding negative voltage. The
LM2662/LM2663 uses two low cost capacitors to
provide 200 mA of output current without the cost,
size, and EMI related to inductor based converters.
With an operating current of only 300 ОјA and
operating efficiency greater than 90% at most loads,
the LM2662/LM2663 provides ideal performance for
battery powered systems. The LM2662/LM2663 may
also be used as a positive voltage doubler. 1 Inverts or Doubles Input Supply Voltage
3.5-О© Typical Output Resistance
86% Typical Conversion Efficiency at 200 mA
(LM2662) Selectable Oscillator Frequency: 20
kHz/150 kHz
(LM2663) Low Current Shutdown Mode 2 Applications Laptop Computers …
