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LM2622

Features: ·1.6A, 0.2W, internal switch·Operating voltage as low as 2.0V·600kHz/1.3MHz pin selectable frequency operation·Over temperature protection·8-Lead MSOP packageApplication·TFT Bias Supplies·Handheld Devices·Portable Applications·GSM/CDMA Phones·Digital CamerasPinoutSpecificationsIf Militar...

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SeekIC No. : 004394933 Detail

LM2622: Features: ·1.6A, 0.2W, internal switch·Operating voltage as low as 2.0V·600kHz/1.3MHz pin selectable frequency operation·Over temperature protection·8-Lead MSOP packageApplication·TFT Bias Supplies·...

LM2622 Data Sheet

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Part Number:
LM2622
Supply Ability:
5000

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

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Product Details

Description



Features:

·1.6A, 0.2W, internal switch
·Operating voltage as low as 2.0V
·600kHz/1.3MHz pin selectable frequency operation
·Over temperature protection
·8-Lead MSOP package




Application

·TFT Bias Supplies
·Handheld Devices
·Portable Applications
·GSM/CDMA Phones
·Digital Cameras




Pinout

Connection Diagram




Specifications

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
VIN ........................................................................12V
SW Voltage ...........................................................18V
FB Voltage ............................................................. 7V
VC Voltage .............................................................7V
SHDN Voltage .........................................................7V
FSLCT ...................................................................12V
Maximum Junction
Temperature....................................................150°C
Power Dissipation(Note 2).............. Internally Limited
Lead Temperature ..........................................300°C
Vapor Phase (60 sec.) ....................................215°C
Infrared (15 sec.) ...........................................220°C
ESD Susceptibility
(Note 3)
Human Body Model.............................................. 2kV
Machine Model ...................................................200V

Temperature Min -40 deg C
Temperature Max 125 deg C
Buffers 0
Multiple Output Capability Yes
On/Off Pin Yes
Error Flag No
Input Min Voltage 2 Volt
Input Max Voltage 12 Volt
Output Current 1500 mA
Adjustable Output Yes
Output Range 1.26V to 12V
Switching Frequency 600 kHz
Adj Switch Frequency Yes
Sync Pin No
Efficiency (peak) 90 %
Flyback Yes
Inverting No
Step-Up Yes
Step-Down No
RegType Switching Regulator
DisplayType LCD
View Using Catalog





Description

The LM2622 is a step-up DC/DC converter with a 1.6A, 0.2W internal switch and pin selectable operating frequency. With the ability to convert 3.3V to multiple outputs of 8V, -8V, and 23V, the LM2622 is an ideal part for biasing TFT displays. The LM2622 can be operated at switching frequencies of 600kHz and 1.3MHz allowing for easy filtering and low noise. An external compensation pin gives the user flexibility in setting frequency compensation, which makes possible the use of small, low ESR ceramic capacitors at the output. The LM2622 is available in a low profile 8-lead MSOP package.






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