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LM20323 Folha de dados(PDF) 3 Page - Texas Instruments |
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LM20323 Folha de dados(HTML) 3 Page - Texas Instruments |
3 / 28 page LM20323 www.ti.com SNVS557B – MAY 2008 – REVISED JANUARY 2009 Pin Descriptions (continued) Pin(s) Name Description Application Information 19 EN Enable or UVLO input An external voltage divider can be used to set the line undervoltage lockout threshold. If the EN pin is left unconnected, a 2 µA pull-up current source pulls the EN pin high to enable the regulator. 20 NC No Connection Recommend connecting this pin to GND. EP Exposed Exposed pad Exposed metal pad on the underside of the package with a weak Pad electrical connection to GND. Connect this pad to the PC board ground plane in order to improve heat dissipation. These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) VIN to GND -0.3V to +38V BOOT to GND -0.3V to +43V BOOT to SW -0.3V to +7V SW to GND -0.5V to +38V SW to GND (Transient) -1.5V (< 20 ns) FB, EN, SS/TRK, COMP, PGOOD to GND -0.3V to +6V VCC to GND -0.3V to +8V Storage Temperature -65°C to 150°C ESD Rating Human Body Model (2) 2kV (1) Absolute Maximum Ratings indicate limits beyond witch damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. (2) The human body model is a 100 pF capacitor discharged through a 1.5 k Ω resistor to each pin. Operating Ratings VIN to GND +4.5V to +36V Junction Temperature −40°C to + 125°C Copyright © 2008–2009, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM20323 |
Nº de peça semelhante - LM20323_14 |
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Descrição semelhante - LM20323_14 |
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