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Details, datasheet, quote on part number:LM2622EVAL
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| Part: | LM2622EVAL |
| Category: | Power Management => Regulators => Switching Regulators |
| Description: | LM2622 - 600kHz/1.3MHz Step-up PWM DC/DC Converter, Package: Evaluation Board, Pin Nb=- |
| Company: | National Semiconductor Corporation |
| Datasheet: | Download LM2622EVAL datasheet File size : 440 kB |
| Request For quote: | Find where to buy LM2622EVAL
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Datasheet text preview:
LM2622 600kHz/1.3MHz Step-up PWM DC/DC Converter
October 2001
LM2622 600kHz/1.3MHz Step-up PWM DC/DC Converter
General Description
The LM2622 is a step-up DC/DC converter with a 1.6A, 0.2 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. n 600kHz/1.3MHz pin selectable frequency operation n Over temperature protection n 8-Lead MSOP package
Applications
n n n n n TFT Bias Supplies Handheld Devices Portable Applications GSM/CDMA Phones Digital Cameras
Features
n 1.6A, 0.2, internal switch n Operating voltage as low as 2.0V
Typical Application Circuit
10127331
600 kHz Operation
© 2001 National Semiconductor Corporation
DS101273
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LM2622
Connection Diagram
Top View
10127304
8-Lead Plastic MSOP NS Package Number MUA08A
Ordering Information
Order Number LM2622MM-ADJ LM2622MMX-ADJ Package Type MSOP-8 MSOP-8 NSC Package Drawing MUA08A MUA08A Supplied As 1000 Units, Tape and Reel 3500 Units, Tape and Reel S18B S18B Package ID
Pin Description
Pin 1 2 3 4 5 6 7 8 Name VC FB SHDN GND SW VIN FSLCT NC Output voltage feedback input. Shutdown control input, active low. Analog and power ground. Power switch input. Switch connected between SW pin and GND pin. Analog power input. Switching frequency select input. VIN = 1.3MHz. Ground = 600kHz. Connect to ground. Function Compensation network connection. Connected to the output of the voltage error amplifier.
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2
LM2622
Block Diagram
10127303
3
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