LP38511MR-ADJ NSC [National Semiconductor], LP38511MR-ADJ Datasheet
LP38511MR-ADJ
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LP38511MR-ADJ Summary of contents
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Fast-Transient Response Adjustable Low-Dropout Linear Voltage Regulator General Description The LP38511-ADJ Fast-Transient Response Low-Dropout Voltage Regulator offers the highest-performance in meeting AC and DC accuracy requirements for powering Digital Cores. The LP38511-ADJ uses a proprietary control loop that enables ...
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... DAP connected to backside of the die, but is not internally connected to device ground. The DAP should be soldered to the Ground Plane copper. www.national.com Package Package Type Marking PSOP-8 LP38511MR-ADJ PSOP-8 LP38511MR-ADJ TO-263 THIN LP38511TJ-ADJ 30040805 PSOP 8 Pin Package Function Function 2 Supplied As Rail Tape and Reel ...
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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 Soldering Temperature (Note 3) Thin TO-263 PSOP-8 ESD Rating (Note 2) Power Dissipation (Note 4) Input ...
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Symbol Parameter AC Parameters PSRR Ripple Rejection ρ Output Noise Density n(l/f) e Output Noise Voltage n Thermal Characteristics T Thermal Shutdown SD ΔT Thermal Shutdown Hysteresis T SD Thermal Resistance θ Junction to Ambient J-A (Note 4) Thermal Resistance ...
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Typical Performance Characteristics V = 2.0V µ µ OUT V vs Temperature ADJ Ground Pin Current (I GND Ground Pin Current ( Temperature GND Unless otherwise specified ...
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OUT Line Regulation vs Temperature Load Transient 800 μF Ceramic OUT ADJ OUT www.national.com EN 30040832 30040821 30040823 6 Load regulation vs Temperature 30040820 Current Limit ...
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Load Transient, 250 mA to 800 μF Ceramic V = 1.20V, C OUT OUT 30040825 Line Transient = 10 μF Ceramic V = 1.20V, C OUT OUT 30040827 PSRR 800 mA OUT = 10μF Ceramic ...
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Block Diagram Application Information 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 A ceramic input capacitor of at least 10 µF is required. ...
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Please refer to the POW- ER DISSIPATION/HEAT-SINKING section for power dissi- pation calculations. SETTING THE OUTPUT VOLTAGE The output voltage is set using the ...
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... FIGURE 2. θ JA Heat-Sinking The PSOP-8 Package The DAP of the PSOP-8 package is soldered to the copper plane for heat sinking. The LP38511MR package has a θ rating of 168°C/W, and a θ rating of 168°C/W includes the device DAP soldered to an area of JA 0.008 square inches (0. 0.09 in ounce copper on a two sided PCB, with no airflow ...
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FIGURE 4. θ vs Thermal Via Count for the PSOP-8 JA Package on 2–Layer PCB with Copper Area on Bottom- Side Figure 5 shows thermal performance for a two layer board with the DAP soldered to copper area on the ...
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Physical Dimensions TO-263 THIN, 5 Lead, Molded, 1.7mm Pitch, Surface Mount www.national.com inches (millimeters) unless otherwise noted NS Package Number TJ5A PSOP, 8 Lead, Molded, 0.050in Pitch, Surface Mount NS Package Number MRA08A 12 ...
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Notes 13 www.national.com ...
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For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo ...