Datenblatt-Suchmaschine für elektronische Bauteile |
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LM22670MRX-5.0 Datenblatt(PDF) 3 Page - Texas Instruments |
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LM22670MRX-5.0 Datenblatt(HTML) 3 Page - Texas Instruments |
3 / 29 page LM22670 www.ti.com SNVS584O – SEPTEMBER 2008 – REVISED MARCH 2013 PIN DESCRIPTIONS (continued) Pin Numbers SO Pin Numbers Name Description Application Information PowerPAD-8 PFM Package Package 3 5 RT/SYNC Oscillator mode control input Used to control oscillator mode of regulator. See Frequency Adjustment and Synchronization section of data sheet. 4 6 FB Feedback input Feedback input to regulator. 5 7 EN Enable input Used to control regulator start-up and shut-down. See Precision Enable section of data sheet. 6 4 GND Ground input to regulator; system System ground pin. common 7 2 VIN Input voltage Supply input to the regulator. 8 1 SW Switch output Switching output of regulator. EP EP EP Exposed Pad Connect to ground. Provides thermal connection to PCB. See Application Information. 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) (2) VIN to GND 43V EN Pin Voltage -0.5V to 6V RT/SYNC Pin Voltage -0.5V to 7V SW to GND (3) -5V to VIN BOOT Pin Voltage VSW + 7V FB Pin Voltage -0.5V to 7V Power Dissipation Internally Limited Junction Temperature 150°C For soldering specifications, refer to the following document: www.ti.com/lit/snoa549 ESD Rating (4) Human Body Model ±2 kV Storage Temperature Range -65°C to +150°C (1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur, including inoperability and degradation of device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or other conditions beyond those indicated in the recommended Operating Ratings is not implied. The recommended Operating Ratings indicate conditions at which the device is functional and should not be operated beyond such conditions. (2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and specifications. (3) The absolute maximum specification of the ‘SW to GND’ applies to DC voltage. An extended negative voltage limit of -10V applies to a pulse of up to 50 ns. (4) ESD was applied using the human body model, a 100 pF capacitor discharged through a 1.5 k Ω resistor into each pin. Operating Ratings (1) Supply Voltage (VIN) 4.5V to 42V Junction Temperature Range -40°C to +125°C (1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur, including inoperability and degradation of device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or other conditions beyond those indicated in the recommended Operating Ratings is not implied. The recommended Operating Ratings indicate conditions at which the device is functional and should not be operated beyond such conditions. Copyright © 2008–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM22670 |
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