SNOSC48O June   2000  – December 2014 LM2936

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics for 3-V LM2936
    6. 6.6 Electrical Characteristics for 3.3-V LM2936
    7. 6.7 Electrical Characteristics for 5-V LM2936
    8. 6.8 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 High Input Operating Voltage
      2. 7.3.2 Thermal Shutdown (TSD)
      3. 7.3.3 Short-Circuit Current Limit
      4. 7.3.4 Shutdown (SD) Pin
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 External Capacitors
          1. 8.2.2.1.1 Minimum Capacitance
          2. 8.2.2.1.2 ESR Limits
        2. 8.2.2.2 Output Capacitor ESR
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
    3. 10.3 Thermal Considerations
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • LM2936 Operating VIN range of 5.5 V to 40 V
  • LM2936HV Operating VIN range of 5.5 V to 60 V
  • Ultra Low Quiescent Current (IQ ≤ 15 μA for IOUT = 100 μA)
  • Fixed 3-V, 3.3-V or 5-V with 50-mA Output
  • ±2% Initial Output Tolerance
  • ±3% Output Tolerance Over Line, Load, and Temperature
  • Dropout Voltage Typically 200 mV at IOUT = 50 mA
  • –24-V Input Voltage Protection
  • –50-V Input Transient Protection
  • Internal Short Circuit Current Limit
  • Internal Thermal Shutdown Protection
  • Shutdown Pin Available with LM2936BM Package

2 Applications

  • Automotive
  • Industrial Controls
  • Point of Load

3 Description

The LM2936 ultra-low quiescent current regulator features low dropout voltage and low current in the standby mode. With less than 15-μA quiescent current at a 100-μA load, the LM2936 is ideally suited for automotive and other battery operated systems. The LM2936 retains all of the features that are common to low dropout regulators including a low dropout PNP pass device, short circuit protection, reverse battery protection, and thermal shutdown. The LM2936 has a 40-V maximum operating voltage limit, a −40°C to 125°C operating temperature range, and ±3% output voltage tolerance over the entire output current, input voltage, and temperature range. The LM2936 is available in a TO-92 through-hole package, as well as SOIC-8, VSSOP, SOT–223, and TO-252 surface mount packages.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
LM2936 SOIC (8) 4.90 mm x 3.91 mm
TO-252 (3) 6.10 mm x 6.58 mm
VSSOP (8) 3.00 mm x 3.00 mm
SOT-223 (4) 6.50 mm x 3.50 mm
TO-92 (3) 4.30 mm x 4.30 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Simplified Schematic

sim_sch_snosc48.gif
* Required if regulator is located more than 2″ from power supply filter capacitor.
** Required for stability. See Electrical Characteristics for 3-V LM2936 for required values. Must be rated over intended operating temperature range. Effective series resistance (ESR) is critical, see Typical Characteristics. Locate capacitor as close as possible to the regulator output and ground pins. Capacitance may be increased without bound.