Features • Inverts or doubles input supply voltage • Narrow SO-8 Package • 3.5Ω typical output resistance • 86% typical conversion efficiency at 200 mA • (LM2662) selectable oscillator frequency: 20 kHz/150 kHz • (LM2663) low current shutdown mode Description The LM2662/LM2663 CMOS charge-pump voltage converter inverts a positive voltage in the range of 1.5V to 5.5V 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. Applications • Laptop computers • Cellular phones • Medical instruments • Operational amplifier power supplies • Interface power supplies • Handheld instruments

LM2663   1.50 <= V in Lower  V   <= V in Upper  V   <= 5.50 V out -5.50 <=  V <= 11.00 I out    A <= 0.20 Ambient Temperature  °C <= 100 What are WEBENCH® tools? MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

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

Datasheets

Title		Size	Date	Other Language
	LM2662/LM2663 Switched Capacitor Voltage Converter	392 Kbytes	9-Jun-08	日本語

Featured Application Notes

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

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Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Standard Pack Size
LM2663M/NOPB LM2663M RoHS Status	SOIC NARROW	Full production Lead Time: 15 weeks	Distributor Region Qty ARROW Worldwide 248 AVNET-EM Worldwide 276 DIGIKEY Worldwide 0 NEWARK Americas 35 RS COMPONENTS Worldwide 132	$0.98 each at 1K+ pcs	rail of 95
LM2663MX/NOPB LM2663MX RoHS Status	SOIC NARROW	Full production Lead Time: 16 weeks	Distributor Region Qty DIGIKEY Worldwide 0 TECHMOSA Asia Pacific 2500	$0.98 each at 1K+ pcs	reel of 2500

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

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

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

Part Number(s) (NSID)	Top View	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM2663M/NOPB LM2663M		SOIC NARROW	8	1 1	260 235	Detail	Download	N/A	NSZXTT LM26 63M
LM2663MX/NOPB LM2663MX		SOIC NARROW	8	1 1	260 235	Detail	Download	N/A	NSZXTT LM26 63M

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

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

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

CAD Symbols and Models Download LM2663 CAD Symbols

Models N/A

LM2663   1.50 <= V in Lower  V   <= V in Upper  V   <= 5.50 V out -5.50 <=  V <= 11.00 I out    A <= 0.20 Ambient Temperature  °C <= 100 What are WEBENCH® tools?

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM2663M	ABCD150	0	34175	0	0	4234000	1	1201409060
LM2663MX	ABCD150	0	34175	0	0	4234000	1	1201409060

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/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

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