Product Summary

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.

Parametrics

Absolute Maximum Ratings:
(1)Supply Voltage (V+ to GND, or GND to OUT) :6V;
(2)LV: (OUT-0.3V) to (GND+3V);
(3)FC, OSC, SD: The least negative of (OUT-0.3V) or (V+-6V) to (V+ +0.3V);
(4)V+ and OUT Continuous Output Current: 250 mA;
(5)Output Short-Circuit Duration to GND: 1 sec.;
(6)Power Dissipation (TA = 25℃): 735 mW;
(7)TJ Max: 150℃;
(8)QJA:170℃/W;
(9)Operating Junction Temperature Range:-40℃ to +85℃;
(10)Storage Temperature Range:-65℃ to +150℃;
(11)Lead Temperature (Soldering, 10 seconds): 300℃;
(12)ESD Rating: 2 kV

Features

(1)Inverts or doubles input supply voltage;
(2)Narrow SO-8 Package;
(3)3.5W typical output resistance;
(4)86% typical conversion efficiency at 200 mA;
(5)(LM2662) selectable oscillator frequency: 20 kHz/150 kHz;
(6)(LM2663) low current shutdown mode

Diagrams

<IMG border=0 src="http://www.seekic.com/uploadfile/ic-mfg/20128412325138.jpg">

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LM2662MX/NOPB
LM2662MX/NOPB
National Semiconductor (TI)
Charge Pumps
Data Sheet
0-1: $1.54
1-25: $1.24
25-100: $1.12
100-250: $1.00
LM2662MX
LM2662MX
National Semiconductor (TI)
Charge Pumps
Data Sheet
0-2500: $0.67
2500-5000: $0.65
5000-10000: $0.62
LM2662M
LM2662M
National Semiconductor (TI)
Charge Pumps
Data Sheet
0-380: $1.00
380-570: $0.87
570-1045: $0.67
1045-5035: $0.65
LM2662M/NOPB
LM2662M/NOPB
National Semiconductor (TI)
Charge Pumps SWITCHED CAPACITOR VLTG CONVERTER
Data Sheet
0-1: $1.54
1-25: $1.24
25-100: $1.12
100-250: $1.00