lp3855et-3.3 National Semiconductor Corporation, lp3855et-3.3 Datasheet
lp3855et-3.3
Related parts for lp3855et-3.3
lp3855et-3.3 Summary of contents
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... Typical Application Circuits **SD and ERROR pins must be pulled high through a 10kΩ pull-up resistor. Connect the ERROR pin to ground if this function is not used. See Application Hints for more information. © 2006 National Semiconductor Corporation Features n Ultra low dropout voltage n Stable with selected ceramic capacitors n Low ground pin current n Load regulation of 0 ...
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Typical Application Circuits **SD must be pulled high through a 10kΩ pull-up resistor. See Application Hints for more information. Connection Diagrams Top View TO220-5 Package Bent, Staggered Leads 20031096 Top View SOT223-5 Package www.national.com (Continued) 20031005 TO263-5 Package 2 20031034 ...
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Pin Descriptions for TO220-5 and TO263-5 Packages Pin # Name GND 4 V OUT 5 ERROR Pin Descriptions for SOT223-5 Package Pin # Name OUT 4 ERROR ...
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Ordering Information Package Type Designator is "T" for TO220 package, and "S" for TO263 package. TABLE 1. Package Marking and Ordering Information Output Voltage Order Number 5.0 LP3852EMP-5.0 5.0 LP3852EMPX-5.0 5.0 LP3852ES-5.0 5.0 LP3852ESX-5.0 3.3 LP3852EMP-3.3 3.3 LP3852EMPX-3.3 3.3 LP3852ES-3.3 ...
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... Units on Tape and Ree LP3855ES-2.5 Rail LP3855ES-2.5 Tape and Reel LHYB 1000 Units on Tape and Reel LHYB LP3855ES-1.8 Rail LP3855ES-1.8 Tape and Reel LP3852ET-5.0 Rail LP3852ET-3.3 Rail LP3852ET-2.5 Rail LP3852ET-1.8 Rail LP3855ET-5.0 Rail LP3855ET-3.3 Rail LP3855ET-2.5 Rail LP3855ET-1.8 Rail www.national.com ...
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Block Diagrams www.national.com LP3852 20031003 LP3855 20031029 6 ...
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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. Storage Temperature Range Lead Temperature (Soldering, 5 sec.) ESD Rating (Note 3) Power Dissipation (Note 2) Input Supply Voltage ...
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Electrical Characteristics LP3852/LP3855 (Continued) Limits in standard typeface are for T Unless otherwise specified Symbol Parameter Shutdown Input V Shutdown Threshold SDT T Turn-off delay dOFF T Turn-on delay dON I SD Input Current SD Error ...
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Typical Performance Characteristics C = 10µF, S/D pin is tied OUT Dropout Voltage vs Output Load Current Shutdown I vs Junction Temperature Q DC Load Reg. vs Junction Temperature Unless otherwise specified ...
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Typical Performance Characteristics C = 10µF, S/D pin is tied Over Temperature IN OUT Load Transient Response 10µF, OSCON IN OUT Load Transient Response ...
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Typical Performance Characteristics C = 10µF, S/D pin is tied OUT Load Transient Response 100µF, TANTALUM IN OUT Load Transient Response 10µF CERAMIC ...
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Application Hints EXTERNAL CAPACITORS Like any low-dropout regulator, external capacitors are re- quired to assure stability. these capacitors must be correctly selected for proper performance. INPUT CAPACITOR: An input capacitor of at least 10µF is required. Ceramic or Tantalum may ...
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Application Hints (Continued) a severe temperature effect, losing more than 50% of nomi- nal capacitance at high and low limits of the temperature range. X7R and X5R dielectric ceramic capacitors are strongly rec- ommended if ceramics are used, as they ...
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Application Hints (Continued) The primary source of noise in low-dropout regulators is the internal reference. In CMOS regulators, noise has a low frequency component and a high frequency component, which depend strongly on the silicon area and quiescent current. Noise ...
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Application Hints (Continued) FIGURE 4. Improving remote load regulation using LP3855 SHUTDOWN OPERATION A CMOS Logic level signal at the shutdown ( SD) pin will turn-off the regulator. Pin SD must be actively terminated through a 10kΩ pull-up resistor for ...
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Application Hints (Continued) θ of TO-263 package for different copper area sizes, using JA a typical PCB with 1 ounce copper and no solder mask over the copper area for heat sinking. FIGURE 5. θ vs Copper (1 Ounce) Area ...
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Physical Dimensions inches (millimeters) unless otherwise noted TO220 5-lead, Molded, Stagger Bend Package (TO220-5) For Order Numbers, refer to the “Ordering Information” section of this document. NS Package Number T05D 17 www.national.com ...
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Physical Dimensions TO263 5-Lead, Molded, Surface Mount Package (TO263-5) For Order Numbers, refer to the “Ordering Information” section of this document. www.national.com inches (millimeters) unless otherwise noted (Continued) NS Package Number TS5B 18 ...
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) SOT223, 5-Lead, Molded, Surface Mount Package (SOT223-5) For Order Numbers, refer to the “Ordering Information” section of this document. National does not assume any responsibility for use of any circuitry described, no ...