Features Inverts Input Supply Voltage SOT23-6 Package 12 Typical Output Impedance 91% Typical Conversion Efficiency at 40 mA 1µA Typical Shutdown Current Description The LM2664 CMOS charge-pump voltage converter inverts a positive voltage in the range of +1.8V to +5.5V to the corresponding negative voltage of -1.8V to -5.5V. The LM2664 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. The device is in SOT-23-6 package. Applications Cellular Phones Pagers PDAs Operational Amplifier Power Suppliers Interface Power Suppliers Handheld Instruments

Typical Application *click for larger image	Connection Diagram *click for larger image
Typical Performance click for larger image

Datasheets

Title		Size	Date	Other Language
	LM2664 Switched Capacitor Voltage Converter	647 Kbytes	27-Sep-05	日本語

Application Notes

Title		Size	Date	Other Language
	AN-1142: Application Note 1142 LM2661/3/4 Evaluation Board	186 Kbytes	4-Oct-04

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LM2664M6/NOPB LM2664M6 RoHS Status	SOT-23	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 1985 AVNET-EM Worldwide 1000 DIGI-KEY Worldwide 9798 FARNELL Europe and Asia 2114 MOUSER Worldwide 1680 NEWARK Americas 2938 RS COMPONENTS Worldwide 535 TAYLOR Americas 14963	$0.35 each at 1K+ pcs	reel of 1000
LM2664M6X/NOPB LM2664M6X RoHS Status	SOT-23	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 3000 DIGI-KEY Worldwide 0 MOUSER Worldwide 3000 TAYLOR Americas 3000	$0.35 each at 1K+ pcs	reel of 3000

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM2664.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM2664 is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM2664M6/NOPB LM2664M6	15.063 15.2	SOT-23	6	1 1	260 260	Detail	Download	N/A	S03A XTT
LM2664M6X/NOPB LM2664M6X	15.063 15.2	SOT-23	6	1 1	260 260	Detail	Download	N/A	S03A XTT

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM2664.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM2664 is located at RoHS Status.

CAD Symbols and Models Download LM2664 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM2664M6	ABCD150	0	42680	0	0	6394000	1	1814314958
LM2664M6X	ABCD150	0	42680	0	0	6394000	1	1814314958

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM2664.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM2664 is located at RoHS Status.