LP38851MR-ADJ/NOPB National Semiconductor, LP38851MR-ADJ/NOPB Datasheet
LP38851MR-ADJ/NOPB
Specifications of LP38851MR-ADJ/NOPB
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LP38851MR-ADJ/NOPB Summary of contents
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... Soft-Start: Programmable Soft-Start time. Precision ADJ Voltage: ±1.5% for T ≤ ≤ 0°C T +125°C, across all line and load conditions J Typical Application Circuit © 2010 National Semiconductor Corporation LP38851 Features ■ Adjustable V ■ Wide V ■ Stable with 10µF Ceramic capacitors ■ ...
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... Ordering Information V Order Number OUT LP38851S-ADJ LP38851SX-ADJ ADJ LP38851T-ADJ LP38851MR-ADJ LP38851MRX-ADJ Connection Diagrams TO263-7, Top View PSOP-8, Top View Pin Descriptions TO220-7 TO263-7 PSOP-8 Pin # Pin # TAB TAB - - www.national.com Package Type Package Drawing TO263-7 TO263-7 TO220-7 PSOP-8 PSOP-8 30002502 30002504 Pin ...
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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 seconds ESD Rating Human Body Model (Note 2) Power Dissipation (Note 3) V Supply Voltage (Survival Supply Voltage (Survival) ...
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Symbol Parameter Soft-Start r Soft-Start internal resistance SS Soft-Start time × r × Enable I ENABLE pin Current EN V Enable Voltage Threshold EN(ON) V Enable Voltage Hysteresis EN(HYS) t Turn-OFF ...
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Typical Performance Characteristics specified 25° 1.40 kΩ 1.00 kΩ Ceramic µF Ceramic, C OUT BIAS V Ground Pin Current (I BIAS GND(BIAS) V Ground Pin Current vs Temperature IN ...
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V vs Temperature OUT UVLO Thresholds vs Temperature OUT SS www.national.com 30002567 Soft-Start r SS 30002568 Enable Thresholds (V 30002576 OUT IN 30002572 Variation vs Temperature 30002575 ...
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Enable Pull-Down Current ( Temperature EN V Line Transient Response IN V Line Transient Response BIAS Enable Pull-Up Resistor (r 30002589 V Line Transient Response IN 30002577 V Line Transient Response BIAS 30002579 Temperature EN ...
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Load Transient Response, C Load Transient Response, C Load Transient Response, C www.national.com = 10 µF Ceramic Load Transient Response, C OUT 30002581 = 47 µF Ceramic Load Transient Response, C OUT 30002583 = 68 µF Tantalum Load Transient Response, ...
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V PSRR BIAS 30002570 Output Noise 30002569 9 V PSRR IN 30002571 www.national.com ...
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Block Diagram www.national.com 10 30002505 ...
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Application Information EXTERNAL CAPACITORS To assure regulator stability, input and output capacitors are required as shown in the Typical Application Circuit. Output Capacitor A minimum output capacitance of 10 µF, ceramic, is required for stability. The amount of output capacitance ...
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TABLE OUT 0.8V 1.07 kΩ 1.78 kΩ 0.9V 1.50 kΩ 1.87 kΩ 1.00V 1.00 kΩ 1.00 kΩ 1.1V 1.65 kΩ 1.37 kΩ 1.2V 1.40 kΩ 1.00 kΩ 715 Ω 1.3V 1.15 kΩ 590 Ω 1.4V 1.07 ...
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Typical C values will be in the range 100 nF, SS providing typical Soft-Start ...
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... JA 125°C. Heat-Sinking The PSOP-8 Package The LP38851MR package has a θ a θ rating of 11°C/W. The θ JC the device DAP soldered to an area of 0.008 square inches (0. 0.09 in ounce copper, with no airflow. ...
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Physical Dimensions inches (millimeters) unless otherwise noted TO-220 7-Lead, Stagger Bend Package (TO220-7) TO-263 7-Lead, Molded, Surface Mount Package (TO263-7) NS Package Number TA07B NS Package Number TS7B 15 www.national.com ...
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PSOP, 8 Lead, Molded, 0.050in Pitch NS Package Number MRA08B 16 ...
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Notes 17 www.national.com ...
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