SLVS010X january   1976  – june 2023 UA78L

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
  7. 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: UA78L02 (Legacy Chip Only)
    6. 6.6  Electrical Characteristics: UA78L033 (New Chip Only)
    7. 6.7  Electrical Characteristics: UA78L05 (Both Legacy and New Chip)
    8. 6.8  Electrical Characteristics: UA78L12 (Both Legacy and New Chip)
    9. 6.9  Electrical Characteristics: UA78L06 (Legacy Chip Only)
    10. 6.10 Electrical Characteristics: UA78L08 (Legacy Chip Only)
    11. 6.11 Electrical Characteristics: UA78L09 (Legacy Chip Only)
    12. 6.12 Electrical Characteristics: UA78L10 (Legacy Chip Only)
    13. 6.13 Electrical Characteristics: UA78L15 (Both Legacy and New Chip)
    14. 6.14 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Current Limit
      2. 7.3.2 Thermal Shutdown
      3. 7.3.3 Dropout Voltage (VDO)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
      2. 7.4.2 Dropout Operation
  9. 8 Applications 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 Input and Output Capacitor Requirements
        2. 8.2.2.2 Power Dissipation (PD)
        3. 8.2.2.3 Estimating Junction Temperature
        4. 8.2.2.4 External Capacitor Requirements
        5. 8.2.2.5 Overload Recovery
        6. 8.2.2.6 Reverse Current
        7. 8.2.2.7 Polarity Reversal Protection
      3. 8.2.3 Application Curves
    3. 8.3 System Examples
      1. 8.3.1 Positive Regulator in Negative Configuration
      2. 8.3.2 Current Limiter Circuit
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
        1. 9.1.1.1 Evaluation Module
      2. 9.1.2 Device Nomenclature
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|8
  • PK|3
  • LP|3
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)(1)
MIN TYP MAX UNIT
VI Input voltage UA78L02AC (for legacy chip only) 4.75 20 V
UA78L033AC (for new chip only) 4.75 20
UA78L05C and UA78L05AC (for both legacy and new chip) 7 20
UA78L06C and UA78L06AC (for legacy chip only) 8.5 20
UA78L08C and UA78L08AC (for legacy chip only) 10.5 23
UA78L09C and UA78L09AC (for legacy chip only) 11.5 24
UA78L10AC (for legacy chip only) 12.5 25
UA78L12C and UA78L12AC (for both legacy and new chip) 14.5 27
UA78L15C and UA78L15AC (for both legacy and new chip) 17.5 30
IO Output current 100 mA
CIN(2) Input capacitor (3) 0.33 µF
COUT(2) Output capacitor (4) 0.1
TJ Operating junction temperature UA78L00C and UA78L00AC series (for legacy chip) 0 125 °C
UA78L05AI (for legacy chip) –40 125
UA78L00C , UA78L00AC, and UA78L05AI series (for new chip) –40 125
(1) All voltages are with respect to GND.
(2) UA78L regulator doesn't need any external capacitors for the the LDO stability. 
(3) An input capacitor with value of 0.33 μF is recommended to counteract the effect of source resistance and inductance, which can in some cases cause symptoms of system level instability such as ringing or oscillation, especially in the presence of load transients.
(4) An output capacitor with value of 0.1 μF is recommended to improve the load and line transient performance of the UA78L regulator.