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LM2665

ACTIVE

1.8-V to 5.5-VIN switched capacitor voltage doubler

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Data sheet

LM2665

ACTIVE
Data sheet Order now

Product details

Iout (max) (A) 0.04 Vin (min) (V) 2.5 Vin (max) (V) 5.8 Type Charge pump Switching frequency (min) (kHz) 40 Switching frequency (max) (kHz) 80 Features Enable Vout (min) (V) 1.8 Vout (max) (V) 11 Rating Catalog Operating temperature range (°C) -40 to 85
Iout (max) (A) 0.04 Vin (min) (V) 2.5 Vin (max) (V) 5.8 Type Charge pump Switching frequency (min) (kHz) 40 Switching frequency (max) (kHz) 80 Features Enable Vout (min) (V) 1.8 Vout (max) (V) 11 Rating Catalog Operating temperature range (°C) -40 to 85
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • 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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* Data sheet LM2665 Switched Capacitor Voltage Converter datasheet (Rev. H) PDF | HTML 22 Mar 2016
White paper The Forgotten Converter 15 Jun 2015
More literature Die D/S LM2665 MDA Switched Capacitor Voltage Converter 20 Sep 2012

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SOT-23 (DBV) 6 View options
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