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LM2662 Product Folder

Switched Capacitor Voltage Converter

Generic P/N 2662

WEBENCH Live Simulation!

LM2662 Webench™ Custom Design/Analyze/Build It
1.5 <=	V in Lower V	<=	V in Upper V	<= 5.5
V out	-5.5 <=		V	<= 11.0
I out			A	<= 0.20
Ambient Temperature			°C	<= 100
What is Webench?

Parametric Table

Temperature Min (deg C)	-40
Temperature Max (deg C)	85
Multiple Output Capability	No
On/Off Pin	No
Error Flag	No
InputMin Voltage (Volt)	1.50
InputMax Voltage (Volt)	5.50
Output Current (mA)	200
Adjustable Output	No
Switching Frequency (Hz)	150000
Adj Switch Frequency	Yes
Sync Pin	No
Efficiency (%)	86
Inverting	Yes
Step-Up	Yes
Step-Down	Yes
RegType	Switched Capacitor

Datasheet

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
LM2662 LM2663 Switched Capacitor Voltage Converter	282 Kbytes	11-Dec-01	View Online	Download	Receive via Email
LM2662 LM2663 Switched Capacitor Voltage Converter (JAPANESE)	507 Kbytes

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Package Availability, Models, Samples & Pricing

Part Number

Package

Status

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking

Type

Pins

MSL/Lead-Free Availability

Lead
Time

Qty

SPICE

IBIS

Qty

$US each

LM2662M

SOIC NARROW

Status

Full production

N/A

1K+

$1.13

rail
of
95

NSXYTT
LM26
62M

4-6 weeks

10000

LM2662MX

SOIC NARROW

Status

Full production

N/A

1K+

$1.13

reel
of
2500

NSXYTT
LM26
62M

4-6 weeks

10000

LM2662 MDC

Unpackaged Die

Full production

N/A

tray
of
N/A

N/A

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.