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Product details

Parameters

Vin (Min) (V) 1.5 Vin (Max) (V) 5.5 Vout (Min) (V) -5.5 Vout (Max) (V) 11 Iout (Max) (A) 0.2 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 27.5 Switching frequency (Max) (kHz) 75 Iq (Typ) (mA) 1.3 Operating temperature range (C) -40 to 85 Type Charge Pump Rating Catalog open-in-new Find other Charge pumps (inductorless)

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 open-in-new Find other Charge pumps (inductorless)

Features

  • Inverts or Doubles Input Supply Voltage
  • 3.5-Ω Typical Output Resistance
  • 86% Typical Conversion Efficiency at 200 mA
  • (LM2662) Selectable Oscillator Frequency:
    20 kHz/150 kHz
  • (LM2663) Low Current Shutdown Mode
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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 µA 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.

The oscillator frequency can be lowered by adding an external capacitor to the OSC pin. Also, the OSC pin may be used to drive the LM2662/LM2663 with an external clock. For LM2662, a frequency control (FC) pin selects the oscillator frequency of 20 kHz or 150 kHz. For LM2663, an external shutdown (SD) pin replaces the FC pin. The SD pin can be used to disable the device and reduce the quiescent current to 10 µA. The oscillator frequency for LM2663 is 150 kHz.

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Technical documentation

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No results found. Please clear your search and try again. View all 7
Type Title Date
* Datasheet LM266x Switched Capacitor Voltage Converter datasheet (Rev. E) Oct. 31, 2014
Technical articles Painting a picture for powering high-performance FPGAs Sep. 05, 2013
Technical articles Analog Applications Spotlight: Mark Pieper Jun. 06, 2013
Technical articles How to choose an LDO or switching regulator May 08, 2013
Technical articles Engineer It Video Series: Testing Power Supplies Mar. 26, 2013
More literature Die D/S LM2662 MDC Switched Capacitor Voltage Converter Sep. 20, 2012
Application notes Using the LM2660 and LP2986 to Generate a Regulated Negative Output Voltage Mar. 21, 2007

Design & development

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SOIC (D) 8 View options

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