SNOSD64 June   2017 LM340-MIL

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: VO = 5 V, VI = 10 V
    6. 6.6 Electrical Characteristics: VO = 12 V, VI = 19 V
    7. 6.7 Electrical Characteristics: VO = 15 V, VI = 23 V
    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 Output Current
      2. 7.3.2 Current Limiting Feature
      3. 7.3.3 Thermal Shutdown
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Shorting the Regulator Input
      2. 8.1.2 Raising the Output Voltage Above the Input Voltage
      3. 8.1.3 Regulator Floating Ground
      4. 8.1.4 Transient Voltages
    2. 8.2 Typical Application
      1. 8.2.1 Fixed Output Voltage Regulator
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
    3. 8.3 System Examples
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Heat Sinking DDPAK/TO-263 and SOT-223 Package Parts
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)(2)
MIN MAX UNIT
DC input voltage 35 V
Internal power dissipation(3) Internally Limited
Maximum junction temperature 150 °C
Storage temperature, Tstg −65 150 °C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and specifications.
(3) The maximum allowable power dissipation at any ambient temperature is a function of the maximum junction temperature for operation (TJMAX = 125°C or 150°C), the junction-to-ambient thermal resistance (θJA), and the ambient temperature (TA). PDMAX = (TJMAX − TA)/θJA. If this dissipation is exceeded, the die temperature rises above TJMAX and the electrical specifications do not apply. If the die temperature rises above 150°C, the device goes into thermal shutdown. For the TO-3 package (NDS), the junction-to-ambient thermal resistance (θJA) is 39°C/W. When using a heat sink, θJA is the sum of the 4°C/W junction-to-case thermal resistance (θJC) of the TO-3 package and the case-to-ambient thermal resistance of the heat sink. For the TO-220 package (NDE), θJA is 54°C/W and θJC is 4°C/W. If SOT-223 is used, the junction-to-ambient thermal resistance is 174°C/W and can be reduced by a heat sink (see Applications Hints on heat sinking).If the DDPAK\TO-263 package is used, the thermal resistance can be reduced by increasing the PCB copper area thermally connected to the package: Using 0.5 square inches of copper area, θJA is 50°C/W; with 1 square inch of copper area, θJA is 37°C/W; and with 1.6 or more inches of copper area, θJA is 32°C/W.

6.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM)(1) ±2000 V
(1) ESD rating is based on the human-body model, 100 pF discharged through 1.5 kΩ.

6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
Temperature (TA) 0 125 °C

6.4 Thermal Information

THERMAL METRIC(1) LM340-MIL UNIT
NDE
(TO-220)		 KTT
(DDPAK/TO-263)		 DCY
(SOT-223)		 NDS
(TO-3)
3 PINS 3 PINS 4 PINS 2 PINS
RθJA Junction-to-ambient thermal resistance 23.9 44.8 62.1 39 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 16.7 45.6 44 2 °C/W
RθJB Junction-to-board thermal resistance 5.3 24.4 10.7 — °C/W
ψJT Junction-to-top characterization parameter 3.2 11.2 2.7 — °C/W
ψJB Junction-to-board characterization parameter 5.3 23.4 10.6 — °C/W
RθJC(bot) Junction-to-case (bottom) thermal resistance 1.7 1.5 — — °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report.

6.5 Electrical Characteristics: VO = 5 V, VI = 10 V

0°C ≤ TJ ≤ 125°C unless otherwise specified(1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VO Output voltage TJ = 25°C, 5 mA ≤ IO ≤ 1 A 4.8 5 5.2 V
PD ≤ 15 W, 5 mA ≤ IO ≤ 1 A

7.5 V ≤ VIN ≤ 20 V

 4.75 5.25 V
ΔVO Line regulation IO = 500 mA TJ = 25°C

7V ≤ VIN ≤ 25V

 3 50 mV
Over temperature

8V ≤ VIN ≤ 20V

 50 mV
IO ≤ 1 A TJ = 25°C

7.5V ≤ VIN ≤ 20V

 50 mV
Over temperature

8V ≤ VIN ≤ 12V

 25 mV
ΔVO Load regulation TJ = 25°C 5 mA ≤ IO ≤ 1.5 A 10 50 mV
250 mA ≤ IO ≤ 750 mA 25 mV
Over temperature, 5 mA ≤ IO ≤ 1 A 50 mV
IQ Quiescent current IO ≤ 1 A TJ = 25°C 8 mA
Over temperature 8.5 mA
ΔIQ Quiescent current change 0°C ≤ TJ ≤ 125°C, 5 mA ≤ IO ≤ 1 A 0.5 mA
7 V ≤ VIN ≤ 20 V TJ = 25°C, IO ≤ 1 A 1 mA
Over temperature, IO ≤ 500 mA 1 mA
VN Output noise voltage TA = 25°C, 10 Hz ≤ f ≤ 100 kHz 40 μV
LM340-MIL 00778135.png
Ripple rejection f = 120 Hz

8 V ≤ VIN ≤ 18 V

  TJ = 25°C, IO ≤ 1 A 62 80 dB
Over temperature, IO ≤ 500 mA 62 dB
RO Dropout voltage TJ = 25°C, IO = 1 A 2 V
Output resistance f = 1 kHz 8 mΩ
Short-circuit current TJ = 25°C 2.1 A
Peak output current TJ = 25°C 2.4 A
Average TC of VOUT Over temperature, IO = 5 mA −0.6 mV/°C
VIN Input voltage required to maintain line regulation TJ = 25°C, IO ≤ 1 A 7.5 V
(1) All characteristics are measured with a 0.22-μF capacitor from input to ground and a 0.1-μF capacitor from output to ground. All characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tw ≤ 10 ms, duty cycle ≤ 5%). Output voltage changes due to changes in internal temperature must be taken into account separately.

6.6 Electrical Characteristics: VO = 12 V, VI = 19 V

0°C ≤ TJ ≤ 125°C unless otherwise specified(1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VO Output voltage TJ = 25°C, 5 mA ≤ IO ≤ 1 A 11.5 12 12.5 V
PD ≤ 15 W, 5 mA ≤ IO ≤ 1 A

14.5 V ≤ VIN ≤ 27 V

 11.4 12.6 V
ΔVO Line regulation IO = 500 mA TJ = 25°C

14.5V ≤ VIN ≤ 30V

 4 120 mV
Over temperature

15V ≤ VIN ≤ 27V

 120 mV
IO ≤ 1 A TJ = 25°C

14.6V ≤ VIN ≤ 27V

 120 mV
Over temperature

16V ≤ VIN ≤ 22V

 60 mV
ΔVO Load regulation TJ = 25°C 5 mA ≤ IO ≤ 1.5 A 12 120 mV
250 mA ≤ IO ≤ 750 mA 60 mV
Over temperature, 5 mA ≤ IO ≤ 1 A 120 mV
IQ Quiescent current IO ≤ 1 A TJ = 25°C 8 mA
Over temperature 8.5 mA
ΔIQ Quiescent current change 5 mA ≤ IO ≤ 1 A 0.5 mA
TJ = 25°C, IO ≤ 1 A

14.8 V ≤ VIN ≤ 27 V

 1 mA
Over temperature, IO ≤ 500 mA

14.5 V ≤ VIN ≤ 30 V

 1 mA
VN Output noise voltage TA = 25°C, 10 Hz ≤ f ≤ 100 kHz 75 μV
LM340-MIL 00778135.png
Ripple rejection f = 120 Hz

15 V ≤ VIN ≤ 25 V

   TJ = 25°C, IO ≤ 1 A 55 72 dB
Over temperature, IO ≤ 500 mA, 55 dB
RO Dropout voltage TJ = 25°C, IO = 1 A 2 V
Output resistance f = 1 kHz 18 mΩ
Short-circuit current TJ = 25°C 1.5 A
Peak output current TJ = 25°C 2.4 A
Average TC of VOUT Over temperature, IO = 5 mA −1.5 mV/°C
VIN Input voltage required to maintain line regulation TJ = 25°C, IO ≤ 1 A 14.6 V
(1) All characteristics are measured with a 0.22-μF capacitor from input to ground and a 0.1-μF capacitor from output to ground. All characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tw ≤ 10 ms, duty cycle ≤ 5%). Output voltage changes due to changes in internal temperature must be taken into account separately.

6.7 Electrical Characteristics: VO = 15 V, VI = 23 V

0°C ≤ TJ ≤ 125°C unless otherwise specified(1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VO Output voltage TJ = 25°C, 5 mA ≤ IO ≤ 1 A 14.4 15 15.6 V
PD ≤ 15 W, 5 mA ≤ IO ≤ 1 A

17.5 V ≤ VIN ≤ 30 V

 14.25 15.75 V
ΔVO Line regulation IO = 500 mA TJ = 25°C

17.5 V ≤ VIN ≤ 30 V

 4 150 mV
Over temperature

18.5 V ≤ VIN ≤ 30 V

 150 mV
IO ≤ 1 A TJ = 25°C

17.7 V ≤ VIN ≤ 30 V

 150 mV
Over temperature

20 V ≤ VIN ≤ 26 V

 75 mV
ΔVO Load regulation TJ = 25°C 5 mA ≤ IO ≤ 1.5 A 12 150 mV
250 mA ≤ IO ≤ 750 mA 75 mV
Over temperature, 5 mA ≤ IO ≤ 1 A, 150 mV
IQ Quiescent current IO ≤ 1 A TJ = 25°C 8 mA
Over temperature 8.5 mA
ΔIQ Quiescent current change 5 mA ≤ IO ≤ 1 A 0.5 mA
TJ = 25°C, IO ≤ 1 A

17.9 V ≤ VIN ≤ 30 V

1 mA
Over temperature, IO ≤ 500 mA

17.5 V ≤ VIN ≤ 30 V

 1 mA
VN Output noise voltage TA = 25°C, 10 Hz ≤ f ≤ 100 kHz 90 μV
LM340-MIL 00778135.png
Ripple rejection f = 120 Hz

18.5 V ≤ VIN ≤ 28.5 V

   TJ = 25°C, IO ≤ 1 A 54 70 dB
Over temperature, IO ≤ 500 mA, 54 dB
RO Dropout voltage TJ = 25°C, IO = 1 A 2 V
Output resistance f = 1 kHz 19 mΩ
Short-circuit current TJ = 25°C 1.2 A
Peak output current TJ = 25°C 2.4 A
Average TC of VOUT Over temperature, IO = 5 mA −1.8 mV/°C
VIN Input voltage required to maintain line regulation TJ = 25°C, IO ≤ 1 A 17.7 V
(1) All characteristics are measured with a 0.22-μF capacitor from input to ground and a 0.1-μF capacitor from output to ground. All characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tw ≤ 10 ms, duty cycle ≤ 5%). Output voltage changes due to changes in internal temperature must be taken into account separately.

6.8 Typical Characteristics

LM340-MIL lm340-mil-maximum-average-power-dissipation-to-3-graph.png Figure 1. Maximum Average Power Dissipation
LM340-MIL lm340-mil-maximum-average-power-dissipation-to-263-ddpak-graph.png
Figure 3. Maximum Power Dissipation (DDPAK/TO-263)
LM340-MIL lm340-mil-ripple-rejection-graph.png Figure 5. Ripple Rejection
LM340-MIL lm340-mil-output-impedance-graph.png Figure 7. Output Impedance
LM340-MIL lm340-mil-quiescent-current-10v-vout-graph.png
Shaded area refers to LM340-MIL.
Figure 9. Quiescent Current
LM340-MIL lm340-mil-dropout-voltage-graph.png
Shaded area refers to LM340-MIL.
Figure 11. Dropout Voltage
LM340-MIL lm340-mil-line-regulation-graph.png
IOUT = 1 A, TA = 25°C
Figure 13. Line Regulation
LM340-MIL lm340-mil-maximum-average-power-dissipation-to-220-graph.png Figure 2. Maximum Average Power Dissipation
LM340-MIL lm340-mil-output-voltage-normalized-to-1v-at-tj-25dc-graph.png
Shaded area refers to LM340-MIL.
Figure 4. Output Voltage (Normalized to 1 V at TJ = 25°C)
LM340-MIL lm340-mil-ripple-rejection-120hz-frequency-graph.png Figure 6. Ripple Rejection
LM340-MIL lm340-mil-dropout-characteristics-graph.png Figure 8. Dropout Characteristics
LM340-MIL lm340-mil-peak-output-current-graph.png
Figure 10. Peak Output Current
LM340-MIL lm340-mil-quiescent-current-5v-vout-graph.png Figure 12. Quiescent Current
LM340-MIL lm340-mil-load-regulation-graph.png
VIN = 10 V, TA = 25°C
Figure 14. Line Regulation