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Charge Pump INV/STPUP/STPDN -1.5V to -5.5V 200mA 8-Pin SOIC T/R

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LM2662MX/NOPB General 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.

Texas Instruments, Inc Inventory

Key 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
Texas Instruments, Inc Original Stock
Texas Instruments, Inc Inventory


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
Rating Catalog Type Charge pump
feature-function Inverting/Step Up/Step Down feature-process-technology
feature-output-type Adjustable feature-output-voltage-v -1.5 to -5.5
feature-minimum-operating-supply-voltage-v 1.5 feature-maximum-operating-supply-voltage-v 5.5
feature-maximum-supply-current-ma feature-maximum-power-dissipation-mw 735
feature-output-current-ma 200(Min) feature-switching-frequency-khz 75(Typ)
feature-efficiency- 96(Typ) feature-packaging Tape and Reel
feature-rad-hard feature-pin-count 8
feature-supplier-package SOIC feature-standard-package-name SO
feature-cecc-qualified No feature-esd-protection Yes
feature-military No feature-aec-qualified No
feature-aec-qualified-number feature-eccn-code EAR99
feature-svhc No feature-svhc-exceeds-threshold No

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Looking good.Not tested yet.

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