LM3876T/NOPB National Semiconductor, LM3876T/NOPB Datasheet
LM3876T/NOPB
Specifications of LM3876T/NOPB
*LM3876T/NOPB
LM3876T
Related parts for LM3876T/NOPB
LM3876T/NOPB Summary of contents
Page 1
... Typical Application Circuits *SD and ERROR pins must be pulled high through a 10kΩ pull-up resistor. Connect the ERROR pin to ground if this function is not used. See application hints for more information. © 2006 National Semiconductor Corporation Features n Ultra low dropout voltage n Low ground pin current n Load regulation of 0.08% n 1µ ...
Page 2
Typical Application Circuits *SD pins must be pulled high through a 10kΩ pull-up resistor. See application hints for more information. Connection Diagrams Top View TO220-5 Package Bent, Staggered Leads Pin Descriptions for TO220-5 and TO263-5 Packages Pin # Name 1 ...
Page 3
Ordering Information Package Type Designator is "T" for TO220 package, and "S" for TO263 package. TABLE 1. Package Marking and Ordering Information Output Voltage Order Number 5.0 LP3873ES-5.0 5.0 LP3873ESX-5.0 3.3 LP3873ES-3.3 3.3 LP3873ESX-3.3 2.5 LP3873ES-2.5 2.5 LP3873ESX-2.5 1.8 LP3873ES-1.8 ...
Page 4
Block Diagram LP3873 Block Diagram LP3876 www.national.com 20060503 20060529 4 ...
Page 5
... 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 (Survival) Shutdown Input Voltage (Survival) ...
Page 6
Electrical Characteristics LP3873/LP3876 (Continued) Limits in standard typeface are for T Unless otherwise specified Symbol Parameter SHUTDOWN INPUT V Shutdown Threshold SDT T Turn-off delay dOFF T Turn-on delay dON I SD Input Current SD ERROR ...
Page 7
Typical Performance Characteristics C = 10µF, S/D pin is tied OUT Dropout Voltage Vs Output Load Current Ground Current vs Output Voltage Error Flag Threshold vs Junction Temperature Unless otherwise ...
Page 8
Typical Performance Characteristics C = 10µF, S/D pin is tied Line Regulation vs Temperature Noise vs Frequency Load Transient Response 100µF, OSCON IN OUT www.national.com Unless otherwise specified: T ...
Page 9
Typical Performance Characteristics C = 10µF, S/D pin is tied OUT Load Transient Response 10µF, TANTALUM IN OUT Load Transient Response 10µF, OSCON IN OUT Load ...
Page 10
Typical Performance Characteristics C = 10µF, S/D pin is tied Load Transient Response 100µF, TANTALUM IN OUT www.national.com Unless otherwise specified 2.5V 1V, I ...
Page 11
Application Hints 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: An input capacitor of at least 1µF is required. Ceramic or Tantalum may ...
Page 12
Application Hints (Continued) PCB LAYOUT Good PC layout practices must be used or instability can be induced because of ground loops and voltage drops. The input and output capacitors must be directly connected to the input, output, and ground pins ...
Page 13
Application Hints (Continued) SENSE PIN In applications where the regulator output is not very close to the load, LP3876 can provide better remote load regulation using the SENSE pin. Figure 2 depicts the advantage of the SENSE option. LP3873 regulates ...
Page 14
Application Hints (Continued) SHUTDOWN OPERATION A CMOS Logic level signal at the shutdown ( SD) pin will turn-off the regulator. Pin SD must be actively terminated through a 10kΩ pull-up resistor for a proper operation. If this pin is driven ...
Page 15
Physical Dimensions inches (millimeters) unless otherwise noted TO220 5-lead, Molded, Stagger Bend Package (TO220-5) For Order Numbers, refer to the “Ordering Information” section of this document. TO263 5-Lead, Molded, Surface Mount Package (TO263-5) For Order Numbers, refer to the “Ordering ...
Page 16
... BANNED SUBSTANCE COMPLIANCE National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C2) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/quality/green. ...