LP38859-1.2EVAL National Semiconductor, LP38859-1.2EVAL Datasheet
LP38859-1.2EVAL
Specifications of LP38859-1.2EVAL
Related parts for LP38859-1.2EVAL
LP38859-1.2EVAL Summary of contents
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... Fast-Response High-Accuracy LDO Linear Regulator with Soft-Start General Description The LP38859 is a high current, fast response regulator which can maintain output voltage regulation with extremely low in- put to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: V ...
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... Ordering Information V * Order Number OUT LP38859S-0.8 0.8V LP38859SX-0.8 LP38859T-0.8 LP38859S-1.2 1.2V LP38859SX-1.2 LP38859T-1.2 * For custom V values between 0.8V and 1.2V please contact the National Semiconductor Sales Office. OUT Connection Diagrams TO263–5, Top View Pin Descriptions Pin # Pin Symbol GND 4 OUT ...
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... V rising until device is BIAS functional V falling from UVLO threshold BIAS until device is non-functional 1V, IN OUT(NOM 3.0V 0.0V BIAS OUT LP38859-0.8 LP38859-1.2 LP38859-0. LP38859-1. −0.3V to +6.0V −0.3V to +6.0V Internally Limited −40°C to +150°C (Note OUT DO BIAS 3. 3.0A −40°C to +125° ...
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Symbol Parameter AC Parameters PSRR Ripple Rejection for Voltage IN PSRR Ripple Rejection for V BIAS (V ) BIAS Output Noise Density e Output Noise Voltage 1.8V OUT Thermal Parameters Thermal Shutdown Junction ...
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Typical Performance Characteristics V = 3.0V mA BIAS OUT IN OUT V Ground Pin Current (I BIAS GND(BIAS) V Ground Pin Current vs Temperature IN Dropout Voltage ( Temperature DO Unless otherwise ...
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V vs Temperature OUT Soft-Start Resistor ( Temperature OUT SS www.national.com UVLO Thresholds vs Temperature 20131267 Soft-Start r SS 20131274 V Line Transient Response IN 20131276 6 20131268 ...
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V Line Transient Response IN V Line Transient Response BIAS Load Transient Response µF Ceramic OUT V Line Transient Response BIAS 20131278 Load Transient Response, C 20131280 Load Transient Response, C 20131282 7 20131279 = 10 µF ...
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Load Transient Response, C Load Transient Response PSRR IN www.national.com = 100 µF Ceramic Load Transient Response, C OUT 20131284 = 100 µF Tantalum OUT 20131286 20131271 8 = 100 µF Tantalum OUT 20131285 V PSRR BIAS 20131270 ...
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Block Diagram 9 20131205 www.national.com ...
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... R output to input voltage differential. This condition is outside the guaranteed operating range and should be avoided. SOFT-START The LP38859 incorporates a Soft-Start function that reduces the start-up current surge into the output capacitor (C allowing V to rise slowly to the final value. This is accom- ...
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C discharge circuit will cease to function due lack of sufficient biasing to the control circuitry. Since V appears on the SS pin, any leakage through C REF will cause V to fall, and thus ...
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Heat-Sinking The TO-263 Package The TO-263 package has a θ rating of 60°C/W, and a θ JA rating of 3°C/W. These ratings are for the package only, no additional heat-sinking, and with no airflow. The TO-263 package uses the copper ...
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Physical Dimensions inches (millimeters) unless otherwise noted TO-220 5-Lead, Stagger Bend Package (TO220-5) TO-263 5-Lead, Molded, Surface Mount Package (TO263-5) NS Package Number TO5D NS Package Number TS5B 13 www.national.com ...
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