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Vin (Min) (V) 2.5 Vin (Max) (V) 5.8 Vout (Min) (V) 1.8 Vout (Max) (V) 11 Iout (Max) (A) 0.04 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 40 Switching frequency (Max) (kHz) 80 Iq (Typ) (mA) 0.65 Features Enable Rating Catalog
Vin (Min) (V) 2.5 Vin (Max) (V) 5.8 Vout (Min) (V) 1.8 Vout (Max) (V) 11 Iout (Max) (A) 0.04 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 40 Switching frequency (Max) (kHz) 80 Iq (Typ) (mA) 0.65 Features Enable Rating Catalog
SOT-23 (DBV) 6 5 mm² 2.9 x 1.6
  • Input Voltage for Voltage Doubler: 2.5 V to 5.5 V
  • Voltage Divider Splits Voltage: 1.8 V to 11 V
  • Doubles or Splits Input Supply Voltage
  • 12-Ω Typical Output Impedance
  • 90% Typical Conversion Efficiency at 40 mA
  • 1-µA Typical Shutdown Current
  • Input Voltage for Voltage Doubler: 2.5 V to 5.5 V
  • Voltage Divider Splits Voltage: 1.8 V to 11 V
  • Doubles or Splits Input Supply Voltage
  • 12-Ω Typical Output Impedance
  • 90% Typical Conversion Efficiency at 40 mA
  • 1-µA Typical Shutdown Current

The LM2665 CMOS charge-pump voltage converter operates as a voltage doubler for an input voltage in the range of 2.5 V to 5.5 V. Two low-cost capacitors and a diode (needed during start-up) are used in this circuit to provide up to 40 mA of output current. The LM2665 can also work as a voltage divider to split a voltage in the range of 1.8 V to 11 V in half.

The LM2665 operates at 160-kHz oscillator frequency to reduce output resistance and voltage ripple. With an operating current of only 650 µA (operating efficiency greater than 90% with most loads) and
1-µA typical shutdown current, the LM2665 provides ideal performance for battery powered systems.

For all available packages, see the orderable addendum at the end of the data sheet.

The LM2665 CMOS charge-pump voltage converter operates as a voltage doubler for an input voltage in the range of 2.5 V to 5.5 V. Two low-cost capacitors and a diode (needed during start-up) are used in this circuit to provide up to 40 mA of output current. The LM2665 can also work as a voltage divider to split a voltage in the range of 1.8 V to 11 V in half.

The LM2665 operates at 160-kHz oscillator frequency to reduce output resistance and voltage ripple. With an operating current of only 650 µA (operating efficiency greater than 90% with most loads) and
1-µA typical shutdown current, the LM2665 provides ideal performance for battery powered systems.

For all available packages, see the orderable addendum at the end of the data sheet.

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Type Title Date
* Data sheet LM2665 Switched Capacitor Voltage Converter datasheet (Rev. H) PDF | HTML 22 Mar 2016
White paper The Forgotten Converter 15 Jun 2015
Technical article Painting a picture for powering high-performance FPGAs 05 Sep 2013
Technical article Analog Applications Spotlight: Mark Pieper 06 Jun 2013
Technical article How to choose an LDO or switching regulator 08 May 2013
More literature Die D/S LM2665 MDA Switched Capacitor Voltage Converter 20 Sep 2012

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