lp3856et-adj National Semiconductor Corporation, lp3856et-adj Datasheet
lp3856et-adj
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lp3856et-adj Summary of contents
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... Adjustable Output Voltage: The output voltage may be programmed via two external resistors. Typical Application Circuit **See Application Hints © 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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... LP3856-ADJ Name Function SD Shutdown V Input Supply IN GND Ground V Output Voltage OUT ADJ Set Output Voltage Current Package Description Type 3A TO263-5 LP3856ES-ADJ 3A TO263-5 LP3856ES-ADJ 3A TO220-5 LP3856ET-ADJ 2 20074206 Top View TO263-5 Package 20074231 Package Marking Supplied As: Rail Tape and Reel Rail ...
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Block Diagram LP3856-ADJ 3 20074229 www.national.com ...
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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 LP3856-ADJ (Continued) Limits in standard typeface are for T J Unless otherwise specified O(NOM) Symbol Parameter Shutdown Input V Shutdown Threshold SDT T Turn-off delay dOFF T Turn-on delay dON I SD Input Current ...
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Typical Performance Characteristics C = 10µF, S/D pin is tied Dropout Voltage vs Output Load Current Ground Current vs Output Voltage IL=3A DC Load Reg. vs Junction Temperature www.national.com Unless otherwise specified ...
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Typical Performance Characteristics C = 10µF, S/D pin is tied OUT Over Temperature IN OUT Load Transient Response 10µF, OSCON IN OUT Load Transient Response C = ...
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Typical Performance Characteristics C = 10µF, S/D pin is tied Load Transient Response 100µF, TANTALUM IN OUT Load Transient Response 100µF, OSCON IN OUT Load Transient ...
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Typical Performance Characteristics C = 10µF, S/D pin is tied OUT Load Transient Response 10µF CERAMIC 10µF CERAMIC OUT Load Transient Response ...
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Application Hints SETTING THE OUTPUT VOLTAGE The output voltage is set using the resistors R1 and R2 (see Typical Application Circuit). The output is also dependent on the reference voltage (typically 1.216V) which is measured at the ADJ pin. The ...
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Application Hints (Continued) FIGURE 2. Maximum Ceramic Output Capacitance vs Ceramic Input Capacitance If the maximum load current is 2A and a 10µF ceramic input capacitor is used, the regulator will be stable with ceramic output capacitor values from 10µF ...
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Application Hints (Continued) input, output, and ground pins of the LP3856-ADJ using traces which do not have other currents flowing in them (Kelvin connect). The best way to do this is to lay out C device with short traces to ...
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Application Hints (Continued) possible conditions, the junction temperature must be within the range specified under operating conditions. The total power dissipation of the device is given by − OUT OUT IN ...
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Physical Dimensions TO220 5-lead, Molded, Stagger Bend Package (TO220-5) For Order Numbers, refer to the “Ordering Information” section of this document. www.national.com inches (millimeters) unless otherwise noted NS Package Number T05D 14 ...
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) TO263 5-Lead, Molded, Surface Mount Package (TO263-5) 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 ...