LP3982IMMX-ADJ National Semiconductor, LP3982IMMX-ADJ Datasheet
LP3982IMMX-ADJ
Specifications of LP3982IMMX-ADJ
Available stocks
Related parts for LP3982IMMX-ADJ
LP3982IMMX-ADJ Summary of contents
Page 1
... These devices also include regulation fault detection, a bandgap voltage reference, constant current limiting and thermal overload protection. Application Circuit © 2006 National Semiconductor Corporation Features n MAX8860 pin, package and spec. compatible n LLP space saving package n 300mA guaranteed output current n 120mV typical dropout n 90µ ...
Page 2
... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications OUT SHDN SET CC V FAULT Fault Sink Current Power Dissipation Storage Temperature Range Junction Temperature ( Lead Temperature (10 sec.) Electrical Characteristics Unless otherwise specified, all limits guaranteed for 25˚ ...
Page 3
Electrical Characteristics Note 2: All voltages are with respect to the potential at the ground pin. Note 3: Maximum Power dissipation for the device is calculated using the following equations: where T is the maximum junction temperature, T J(MAX) package ...
Page 4
Typical Performance Characteristics 2.2µ 33nF 25˚ SHDN Dropout Voltage vs. Load Current (For Different Output Voltages) FAULT Detect Threshold vs. Load Current Supply Current vs. Load Current www.national.com Unless otherwise specified ...
Page 5
Typical Performance Characteristics 2.2µ 33nF 25˚ SHDN Output Noise Spectral Density Output Impedance vs. Frequency Load Transient Unless otherwise specified (Continued) IN 20036905 20036907 20036909 ...
Page 6
Typical Performance Characteristics 2.2µ 33nF 25˚ SHDN Power-Up Response Application Information GENERAL INFORMATION LP3982 is package, pin and performance compatible with Maxim’s MAX8860 excluding reverse battery protection and Dual Mode function (fixed and ...
Page 7
Application Information Similarity in the output capabilities exists between op amps and linear regulators. Just as rail-to-rail output op amps allow their output voltage to approach the supply voltage, low dropout regulators (LDOs) allow their output voltage to operate close ...
Page 8
Application Information FIGURE 4. Loop Gain Bode Plot Illustrating Inadequately High Zero for Stability Compensation The LP3982 generates an internal zero that makes up for the inadequately high zero of the low ESR ceramic output ca- pacitor. This internally generated ...
Page 9
Application Information FIGURE 5. Power on Delayed Reset Application The delay time for the application of Figure 5 is set as follows: The application is set for a reset delay time of 8.8ms. Note that the comparator should have high ...
Page 10
... Connection Diagrams 8-Pin MSOP Top View Note: The SET pin is internally disconnected for the fixed versions. Ordering Information Package Part Number 8-Pin MSOP LP3982IMM-ADJ LP3982IMMX-ADJ LP3982IMM-1.8 LP3982IMMX-1.8 LP3982IMM-2.5 LP3982IMMX-2.5 LP3982IMM-2.77 LP3982IMMX-2.77 LP3982IMM-2.82 LP3982IMMX-2.82 LP3982IMM-3.0 LP3982IMMX-3.0 LP3982IMM-3.3 LP3982IMMX-3.3 8-Pin LLP LP3982ILD-1.8 LP3982ILDX-1.8 LP3982ILD-2 ...
Page 11
Physical Dimensions inches (millimeters) unless otherwise noted 8-Pin MSOP NS Package Number MUA08A 8-Lead LLP Surface Mount NS Package Number LDA08C 11 www.national.com ...
Page 12
... BANNED SUBSTANCE COMPLIANCE National Semiconductor manufactures products and uses packing materials that meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...