SNVS039J June   2000  – April 2015 LM1086

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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
    6. 6.6 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 Ripple Rejection
      2. 7.3.2 Load Regulation
      3. 7.3.3 Overload Recovery
    4. 7.4 Device Functional Modes
      1. 7.4.1 Output Voltage
      2. 7.4.2 Stability Consideration
      3. 7.4.3 Protection Diodes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1  1.2-V to 15-V Adjustable Regulator
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2  Adjustable at 5 V
      3. 8.2.3  5-V Regulator with Shutdown
      4. 8.2.4  Battery Charger
      5. 8.2.5  Adjustable Fixed Regulator
      6. 8.2.6  Regulator With Reference
      7. 8.2.7  High Current Lamp Driver Protection
      8. 8.2.8  Battery Backup Regulated Supply
      9. 8.2.9  Ripple Rejection Enhancement
      10. 8.2.10 Automatic Light Control
      11. 8.2.11 Remote Sensing
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
  11. 11Device and Documentation Support
    1. 11.1 Development Support
    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

6.5 Electrical Characteristics

Typicals and limits appearing in normal type apply for TJ = 25°C unless specified otherwise.
PARAMETER TEST CONDITIONS TJ = 25°C TJ over the entire range for operation (see Recommended Operating Conditions) UNIT
MIN TYP MAX MIN(3) TYP(2) MAX (3)
VREF Reference Voltage LM1086-ADJ, IOUT = 10 mA, VIN − VOUT = 3 V, 10 mA ≤ IOUT ≤ IFULL LOAD, 1.5 V ≤ VIN − VOUT ≤ 15 V(4) 1.238 1.250 1.262 1.225 1.250 1.270 V
VOUT Output Voltage(4) LM1086-1.8, IOUT = 0 mA, VIN = 5 V, 0 ≤ IOUT ≤ IFULL LOAD, 3.3 V ≤ VIN ≤ 18 V 1.782 1.8 1.818 1.764 1.8 1.836 V
LM1086-2.5, IOUT = 0 mA, VIN = 5 V, 0 ≤ IOUT ≤ IFULL LOAD, 4.0 V ≤ VIN ≤ 18 V 2.475 2.50 2.525 2.450 2.50 2.55 V
LM1086-3.3, IOUT = 0 mA, VIN = 5 V, 0 ≤ IOUT ≤ IFULL LOAD, 4.75 V ≤ VIN ≤ 18 V 3.267 3.300 3.333 3.235 3.300 3.365 V
LM1086-5.0, IOUT = 0 mA, VIN = 8 V, 0 ≤ IOUT ≤ IFULL LOAD, 6.5 V ≤ VIN ≤ 20 V 4.950 5.000 5.050 4.900 5.000 5.100 V
ΔVOUT Line Regulation(5) LM1086-ADJ, IOUT =10 mA, 1.5 V ≤ (VIN - VOUT) ≤ 15 V 0.015% 0.2% 0.035% 0.2%
LM1086-1.8, IOUT = 0 mA, 3.3 V ≤ VIN ≤ 18 V 0.3 6 0.6 6 mV
LM1086-2.5, IOUT = 0 mA, 4.0 V ≤ VIN ≤ 18 V 0.3 6 0.6 6 mV
LM1086-3.3, IOUT = 0 mA, 4.5 V ≤ VIN ≤ 18 V 0.5 10 1.0 10 mV
LM1086-5.0, IOUT = 0 mA, 6.5 V ≤ VIN ≤ 20 V 0.5 10 1.0 10 mV
ΔVOUT Load Regulation(5) LM1086-ADJ, (VIN-V OUT ) = 3 V, 10 mA ≤ IOUT ≤ IFULL LOAD 0.1% 0.3% 0.2% 0.4%
LM1086-1.8, 2.5, VIN = 5 V, 0 ≤ IOUT ≤ IFULL LOAD 3 12 6 20 mV
LM1086-3.3, VIN = 5 V, 0 ≤ IOUT ≤ IFULL LOAD 3 15 7 25 mV
LM1086-5.0, VIN = 8 V, 0 ≤ IOUT ≤ IFULL LOAD 5 20 10 35 mV
Dropout Voltage(6) LM1086-ADJ, 1.8, 2.5, 3.3, 5, ΔVREF, ΔVOUT = 1%, IOUT = 1.5A 1.3 1.5 V
ILIMIT Current Limit LM1086-ADJ, VIN − VOUT = 5 V, VIN − VOUT = 25 V 1.50 2.7 A
0.05 0.15
LM1086-1.8,2.5, 3.3, VIN = 8 V 1.5 2.7 A
LM1086-5.0, VIN = 10 V 1.5 2.7 A
Minimum Load Current(7) LM1086-ADJ, VIN −VOUT = 25 V 5.0 10.0 mA
Quiescent Current LM1086-1.8, 2.5, VIN ≤ 18 V 5.0 10.0 mA
LM1086-3.3, VIN ≤ 18 V 5.0 10.0 mA
LM1086-5.0, VIN ≤ 20 V 5.0 10.0 mA
Thermal Regulation TA = 25°C, 30ms Pulse 0.008 0.04 %/W
Ripple Rejection fRIPPLE = 120 Hz, COUT = 25 µF Tantalum, IOUT = 1.5 A 60 75 dB
LM1086-ADJ, CADJ = 25 µF, (VIN− VO) = 3 V
LM1086-1.8, 2.5, VIN = 6 V 60 72 dB
LM1086-3.3, VIN= 6.3 V 60 72 dB
LM1086-5.0 VIN = 8 V 60 68 dB
Adjust Pin Current LM1086 55 120 µA
Adjust Pin Current Change 10 mA ≤ IOUT ≤ IFULL LOAD, 1.5 V ≤ (VIN−VOUT) ≤ 15 V 0.2 5 µA
Temperature Stability 0.5%
Long Term Stability TA = 125°C, 1000 Hrs 0.3% 1.0%
RMS Noise
(% of VOUT)		 10 Hz ≤ f≤ 10 kHz 0.003%
(1) The maximum power dissipation is a function of TJ(MAX) , θJA, and TA. The maximum allowable power dissipation at any ambient temperature is PD = (TJ(MAX)–T A)/θJA. All numbers apply for packages soldered directly into a PC board. Refer to Thermal Considerations.
(2) Typical Values represent the most likely parametric norm.
(3) All limits are specified by testing or statistical analysis.
(4) IFULL LOAD is defined in the current limit curves. The IFULL LOAD Curve defines current limit as a function of input-to-output voltage. Note that 15W power dissipation for the LM1086 is only achievable over a limited range of input-to-output voltage.
(5) Load and line regulation are measured at constant junction temperature, and are specified up to the maximum power dissipation of 15W. Power dissipation is determined by the input/output differential and the output current. Ensured maximum power dissipation will not be available over the full input/output range.
(6) Dropout voltage is specified over the full output current range of the device.
(7) The minimum output current required to maintain regulation.