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LM2662

Features: · Inverts or doubles input supply voltage· Narrow SO-8 Package· 3.5W typical output resistance· 86% typical conversion efficiency at 200 mA· (LM2662) selectable oscillator frequency: 20 kHz/150 kHz· (LM2663) low current shutdown modeApplication· Laptop computers· Cellular phones· Medical...

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SeekIC No. : 004394958 Detail

LM2662: Features: · Inverts or doubles input supply voltage· Narrow SO-8 Package· 3.5W typical output resistance· 86% typical conversion efficiency at 200 mA· (LM2662) selectable oscillator frequency: 20 kH...

LM2662 Data Sheet

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Part Number:
LM2662
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

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




Application

· Laptop computers
· Cellular phones
· Medical instruments
· Operational amplifier power supplies
· Interface power supplies
· Handheld instruments




Specifications

Supply Voltage (V+ to GND, or GND to OUT) 6V
LV (OUT − 0.3V) to (GND + 3V)
FC, OSC, SD The least negative of (OUT − 0.3V)
or (V+ − 6V) to (V+ + 0.3V)
V+ and OUT Continuous Output Current 250 mA
Output Short-Circuit Duration to GND 1 sec.
Power Dissipation (TA = 25°C) 735 mW
TJ 150°C
JA 170°C/W
Operating Junction Temperature
Range		 −40°C to +85°C
Storage Temperature Range −65°C to +150°C
Lead Temperature (Soldering, 10 seconds) 300°C
ESD Rating 2 kV


Output Current 200 mA
Input Min Voltage 1.5 Volt
Input Max Voltage 5.5 Volt
Switching Frequency 150 kHz
On/Off Pin No
Efficiency (peak) 86 %
Error Flag No
Sync Pin No
Adj Switch Frequency Yes
Adjustable Output No
Inverting Yes
Step-Down Yes
Step-Up Yes
Multiple Output Capability No
RegType Switched Capacitor
Temperature Max 85 deg C
Temperature Min -40 deg C
Topology Charge Pump
View Using Catalog





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.






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