LM2664 1.8V to 5.5Vin Switched Capacitor Voltage Converter | TI.com

LM2664 (ACTIVE)

1.8V to 5.5Vin Switched Capacitor Voltage Converter

 

Description

The LM2664 CMOS charge-pump voltage converter inverts a positive voltage in the range of 1.8 V to 5.5 V to the corresponding negative voltage of −1.8 V to −5.5 V. The device uses two low-cost capacitors to provide up to 40 mA of output current.

The LM2664 operates at 160-kHz oscillator frequency to reduce output resistance and voltage ripple. With an operating current of only 220 µA (operating efficiency greater than 91% with most loads) and 1-µA typical shutdown current, the LM2664 provides ideal performance for battery-powered systems.

Features

  • Inverts Input Supply Voltage
  • 6-Pin SOT-23 Package
  • 12-Ω Typical Output Impedance
  • 91% Typical Conversion Efficiency at 40 mA
  • 1-µA Typical Shutdown Current

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Parametrics Compare all products in Charge pumps (inductorless)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Regulated outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Operating temperature range (C)
Type
Rating
Package Group
LM2664
1.8    
5.8    
-5.8    
-1.8    
0.04    
1    
40    
80    
-40 to 85    
Charge Pump    
Catalog    
SOT-23 | 6