LM22676TJ-5.0/NOPB National Semiconductor, LM22676TJ-5.0/NOPB Datasheet
LM22676TJ-5.0/NOPB
Specifications of LM22676TJ-5.0/NOPB
Related parts for LM22676TJ-5.0/NOPB
LM22676TJ-5.0/NOPB Summary of contents
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... The LM22676 series also has built in thermal shutdown, current limiting and an enable control input that can power down the regulator to a low 25 µA quiescent current standby condition. Simplified Application Schematic © 2010 National Semiconductor Corporation LM22676/LM22676Q Features ■ Wide input voltage range: 4.5V to 42V ■ ...
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... ADJ LM22676MRE-ADJ ADJ LM22676MRX-ADJ ADJ LM22676QMR-ADJ ADJ LM22676QMRE-ADJ ADJ LM22676QMRX-ADJ ADJ LM22676TJE-ADJ TO-263 THIN Exposed Pad ADJ LM22676TJ-ADJ ADJ LM22676QTJE-ADJ ADJ LM22676QTJ-ADJ 5.0 LM22676MR-5.0 5.0 LM22676MRE-5.0 5.0 LM22676MRX-5.0 www.national.com 8-Lead Plastic PSOP-8 Package NS Package Number MRA08B 7-Lead Plastic TO-263 THIN Package ...
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... LM22676QMRX-5.0 5.0 LM22676TJE-5.0 TO-263 THIN Exposed Pad 5.0 LM22676TJ-5.0 5.0 LM22676QTJE-5.0 5.0 LM22676QTJ-5.0 *Automotive Grade (Q) product incorporates enhanced manufacturing and support processes for the automotive market, including defect detection methodologies. Reliability qualification is compliant with the requirements and temperature grades defined in the AEC-Q100 standard. Automotive grade products are identified with the letter Q ...
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Pin Descriptions Pin Numbers Pin Numbers PSOP-8 TO-263 THIN Package Package www.national.com Name Description Application Information BOOT Bootstrap input Provides the gate voltage for the ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. VIN to GND EN Pin Voltage SW to GND (Note 2) BOOT Pin Voltage FB Pin Voltage Power Dissipation Electrical Characteristics junction temperature (T ) range of -40°C to +125°C. Minimum and Maximum limits are guaranteed through test, design, or statistical J correlation ...
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Note 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 ...
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Feedback Bias Current vs Temperature Standby Quiescent Current vs Input Voltage Normalized Feedback Voltage vs Input Voltage Normalized Enable Threshold Voltage vs Temperature 30076505 Normalized Feedback Voltage vs Temperature 30076506 30076509 7 30076510 30076507 www.national.com ...
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Typical Application Circuit and Block Diagram www.national.com FIGURE 1. 3. OUT 8 30076514 ...
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Detailed Operating Description The LM22676 switching regulator features all of the functions necessary to implement an efficient high voltage buck regu- lator using a minimum of external components. This easy to use regulator integrates a 42V N-Channel switch with an ...
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FIGURE 2. Output Current in Foldback vs. Nominal Duty Cycle The percentage of output current limit fold back is affected by duty cycle, inductance, and See Figure 2 for details. The current limit will only protect the inductor from a ...
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Application Information EXTERNAL COMPONENTS The following design procedures can be used to design a non- synchronous buck converter with the LM22676. Inductor The inductor value ...
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Where V = 1.285V typical for the -ADJ option and 5V for the FB -5.0 option FIGURE 3. Resistive Feedback Divider A maximum value of 10 kΩ is recommended for the sum of R1 and R2 to keep ...
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Thermal Considerations The two highest power dissipating components are the re- circulating diode and the LM22676 regulator IC. The easiest method to determine the power dissipation within the LM22676 is to measure the total conversion losses (Pin – Pout) then ...
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PCB Layout Example for TO-263 THIN Package www.national.com 14 30076525 ...
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PCB Layout Example for PSOP-8 Package Schematic for Buck/Boost (Inverting) Application See AN-1888 for more information on the inverting (buck- boost) application generating a negative output voltage from a positive input voltage. 30076541 30076526 15 www.national.com ...
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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 7-Lead Plastic TO-263 THIN Package NS Package Number TJ7A 8-Lead PSOP Package NS Package Number MRA08B 16 ...
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Notes 17 www.national.com ...
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