LP2997MX National Semiconductor, LP2997MX Datasheet
LP2997MX
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LP2997MX Summary of contents
Page 1
... When SD is pulled low the V tri-state providing a high impedance output, but, V remain active. A power savings advantage can be obtained in this mode through lower quiescent current. Typical Application Circuit © 2004 National Semiconductor Corporation Features n Source and sink current n Low output voltage offset n No external resistors required ...
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... Connection Diagrams Pin Description SO-8 Pin or PSOP-8 Pin Ordering Information Order Number Package Type LP2997M LP2997MX LP2997MR LP2997MRX www.national.com 20109403 PSOP-8 Layout 20109404 SO-8 Layout Name GND Ground SD Shutdown VSENSE Feedback pin for regulating V VREF Buffered internal reference voltage of V ...
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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. PVIN, AVIN, VDDQ to GND No pin should exceed AVIN Storage Temp. Range Junction Temperature Lead Temperature (Soldering, 10 sec) Electrical Characteristics type apply over the full Operating Temperature Range (T AVIN = 2 ...
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Electrical Characteristics apply over the full Operating Temperature Range (T AVIN = 2.5V, PVIN = 1.8V, VDDQ = 1.8V. (Continued) Note 1: Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating range indicates conditions for ...
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Typical Performance Characteristics and DDQ 20109420 20109422 20109426 20109421 REF DDQ 20109424 in SD Temperature ...
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Typical Performance Characteristics Temperature IN Maximum Sinking Current 1.8V) DDQ www.national.com (Continued) Maximum Sourcing Current DDQ 20109428 IN 20109436 1.8V 1.8V) IN 20109435 ...
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Block Diagram Description The LP2997 is a linear bus termination regulator designed to meet the JEDEC requirements of SSTL-18. The output capable of sinking and sourcing current while regulating the output voltage equal to VDDQ / 2. The ...
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Pin Descriptions (Continued) This output remains active during the shutdown state and thermal shutdown events for the suspend to RAM function- ality the regulated output that is used to terminate the bus TT resistors ...
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Thermal Dissipation (Continued) top side of the board can also help. With careful layout it is possible to reduce the θ further than the nominal values JA shown in Figure 1 Optimizing the θ and placing the LP2997 in a ...
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Typical Application Circuits Several different application circuits have been shown to illustrate some of the options that are possible in configuring the LP2997. Graphs of the individual circuit performance can be found in the Typical Performance Characteristics section in the ...
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Physical Dimensions inches (millimeters) unless otherwise noted 8-Lead Small Outline Package (M8) NS Package Number M08A 8-Lead PSOP Package (PSOP-8) NS Package Number MRA08A 11 www.national.com ...
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... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...