LM340-N, LM78xx www.ti.com SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 LM340-N/LM78XX Series 3-Terminal Positive Regulators Check for Samples: LM340-N, LM78xx FEATURES DESCRIPTION • • The LM140/LM340A/LM340-N/LM78XXC monolithic 3-terminal positive voltage regulators employ internal current-limiting, thermal shutdown and safe-area compensation, making them essentially indestructible. If adequate heat sinking is provided, they can deliver over 1.0A output current. They are intended as fixed voltage regulators in a wide range of applications including local (on-card) regulation for elimination of noise and distribution problems associated with single-point regulation. In addition to use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents. 1 2 • • • • • • Complete Specifications at 1A Load Output Voltage Tolerances of ±2% at Tj = 25°C and ±4% Over the Temperature Range (LM340A) Line Regulation of 0.01% of VOUT/V of ΔVIN at 1A Load (LM340A) Load Regulation of 0.3% of VOUT/A (LM340A) Internal Thermal Overload Protection Internal Short-circuit Current Limit Output Transistor Safe Area Protection P+ Product Enhancement Tested Considerable effort was expended to make the entire series of regulators easy to use and minimize the number of external components. It is not necessary to bypass the output, although this does improve transient response. Input bypassing is needed only if the regulator is located far from the filter capacitor of the power supply. The 5V, 12V, and 15V regulator options are available in the steel TO-3 power package. The LM340A/LM340-N/LM78XXC series is available in the TO-220 plastic power package, and the LM340-N-5.0 is available in the SOT-223 package, as well as the LM340-5.0 and LM340-12 in the surface-mount DDPAK/TO-263 package. Typical Applications *Required if the regulator is located far from the power supply filter. **Although no output capacitor is needed for stability, it does help transient response. (If needed, use 0.1 μF, ceramic disc). Figure 1. Fixed Output Regulator VOUT = 5V + (5V/R1 + IQ) R2 5V/R1 > 3 IQ, load regulation (Lr) ≈ [(R1 + R2)/R1] (Lr of LM340-5). Figure 2. Adjustable Output Regulator 1 2 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2000–2013, Texas Instruments Incorporated LM340-N, LM78xx SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 www.ti.com SOT-223 DDPAK/TO-263 ΔIQ = 1.3 mA over line and load changes. Figure 3. Current Regulator Figure 4. Comparison between SOT-223 and DDPAK/TO-263 Packages Scale 1:1 Connection Diagrams Figure 5. DDPAK/TO-263 Surface-Mount Package Top View See Package Number KTT0003B Figure 6. 3-Lead SOT-223 Top View See Package Number DCY These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) (2) (3) DC Input Voltage 35V Internal Power Dissipation (4) Internally Limited Maximum Junction Temperature 150°C −65°C to +150°C Storage Temperature Range Lead Temperature (Soldering, 10 sec.) ESD Susceptibility (1) (2) (3) (4) (5) TO-3 Package (NDS) 300°C TO-220 Package (NDE), DDPAK/TO-263 Package (KTT) 230°C (5) 2 kV Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are conditions under which the device functions but the specifications might not be ensured. For ensured specifications and test conditions see the Electrical Characteristics. Military datasheets are available upon request. At the time of printing, the military datasheet specifications for the LM140K-5.0/883, LM140K-12/883, and LM140K-15/883 complied with the min and max limits for the respective versions of the LM140. The LM140H and LM140K may also be procured as JAN devices on slash sheet JM38510/107. If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and specifications. 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 will rise above TJMAX and the electrical specifications do not apply. If the die temperature rises above 150°C, the device will go into thermal shutdown. For the TO-3 package (NDS), the junction-to-ambient thermal resistance (θJA) is 39°C/W. When using a heatsink, 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 heatsink. 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 heatsink (see Applications Hints on heatsinking).If the DDPAK\TO-263 package is used, the thermal resistance can be reduced by increasing the PC board 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, θJAis 37°C/W; and with 1.6 or more inches of copper area, θJA is 32°C/W. ESD rating is based on the human body model, 100 pF discharged through 1.5 kΩ. Operating Conditions (1) (1) 2 Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are conditions under which the device functions but the specifications might not be ensured. For ensured specifications and test conditions see the Electrical Characteristics. Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx LM340-N, LM78xx www.ti.com SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 Operating Conditions(1) (continued) LM140 Temperature Range (TA) (2) (2) −55°C to +125°C LM340A, LM340-N 0°C to +125°C LM7808C 0°C to +125°C 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 will rise above TJMAX and the electrical specifications do not apply. If the die temperature rises above 150°C, the device will go into thermal shutdown. For the TO-3 package (NDS), the junction-to-ambient thermal resistance (θJA) is 39°C/W. When using a heatsink, 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 heatsink. 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 heatsink (see Applications Hints on heatsinking).If the DDPAK\TO-263 package is used, the thermal resistance can be reduced by increasing the PC board 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, θJAis 37°C/W; and with 1.6 or more inches of copper area, θJA is 32°C/W. Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx 3 LM340-N, LM78xx SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 www.ti.com LM340A Electrical Characteristics IOUT = 1A, 0°C ≤ TJ ≤ + 125°C (LM340A) unless otherwise specified (1) Output Voltage Symbol Input Voltage (unless otherwise noted) Parameter VO 5V Output Voltage Conditions 10V Line Regulation 19V Units Max Min Typ Max Min Typ Max TJ = 25°C 4.9 5 5.1 11.75 12 12.25 14.7 15 15.3 V PD ≤ 15W, 5 mA ≤ IO ≤ 1A 4.8 5.2 11.5 12.5 14.4 15.6 V (7.5 ≤ VIN ≤ 20) IO = 500 mA ΔVIN (7.5 ≤ VIN ≤ 20) 3 10 4 5 mA ≤ IO ≤ 1.5A 10 250 mA ≤ IO ≤ 750 mA Over Temperature, V 4 mV (16 ≤ VIN ≤ 22) 25 12 22 (17.5 ≤ VIN ≤ 30) 30 (8 ≤ VIN ≤ 12) mV (17.9 ≤ VIN ≤ 30) 9 12 ΔVIN V 22 18 (14.5 ≤ VIN ≤ 27) 4 Over Temperature (17.9 ≤ VIN ≤ 30) 18 (14.8 ≤ VIN ≤ 27) (7.5 ≤ VIN ≤ 20) TJ = 25°C TJ = 25°C (14.8 ≤ VIN ≤ 27) 10 ΔVIN Load Regulation 23V Typ TJ = 25°C ΔVO 15V Min VMIN ≤ VIN ≤ VMAX ΔVO 12V V 10 mV 30 mV (20 ≤ VIN ≤ 26) V 12 35 mV 32 15 19 21 mV 25 60 75 mV 5 mA ≤ IO ≤ 1A IQ ΔIQ Quiescent Current TJ = 25°C 6 6 6 mA Over Temperature 6.5 6.5 6.5 mA Quiescent Current Change 5 mA ≤ IO ≤ 1A 0.5 0.5 0.5 mA TJ = 25°C, IO = 1A 0.8 0.8 0.8 mA VMIN ≤ VIN ≤ VMAX (7.5 ≤ VIN ≤ 20) IO = 500 mA VMIN ≤ VIN ≤ VMAX VN (14.8 ≤ VIN ≤ 27) 0.8 (8 ≤ VIN ≤ 25) Output Noise Voltage TA = 25°C, 10 Hz ≤ f ≤ 100 kHz Ripple Rejection TJ = 25°C, f = 120 Hz, IO = 1A 68 or f = 120 Hz, IO = 500 mA, 68 (15 ≤ VIN ≤ 30) 40 80 (17.9 ≤ VIN ≤ 30) 0.8 72 61 mA (17.9 ≤ VIN ≤ 30) V 90 μV 70 dB 75 61 V 0.8 60 60 dB (18.5 ≤ VIN ≤ 28.5) V Over Temperature, VMIN ≤ VIN ≤ VMAX RO VIN (1) 4 Dropout Voltage TJ = 25°C, IO = 1A Output Resistance (8 ≤ VIN ≤ 18) (15 ≤ VIN ≤ 25) 2.0 2.0 2.0 V f = 1 kHz 8 18 19 mΩ Short-Circuit Current TJ = 25°C 2.1 1.5 1.2 A Peak Output Current TJ = 25°C 2.4 2.4 2.4 A Average TC of VO Min, TJ = 0°C, IO = 5 mA −0.6 −1.5 −1.8 mV/°C Input Voltage TJ = 25°C Required to Maintain Line Regulation 7.5 14.5 17.5 V 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. Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx LM340-N, LM78xx www.ti.com SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 LM140 Electrical Characteristics (1) −55°C ≤ TJ ≤ +150°C unless otherwise specified Output Voltage Symb ol Input Voltage (unless otherwise noted) Parameter VO 5V Conditions 10V Min Typ Output Voltage TJ = 25°C, 5 mA ≤ IO ≤ 1A 4.8 5 PD ≤ 15W, 5 mA ≤ IO ≤ 1A 4.75 VMIN ≤ VIN ≤ VMAX ΔVO Line Regulation IO = 500 mA 12V 19V Min Typ Max 5.2 11.5 12 5.25 11.4 3 ΔVIN Load Regulation TJ = 25°C 10 250 mA ≤ IP ≤ 750 mA V V V mV 120 150 (17.5 ≤ VIN ≤ 30) 120 V 150 mV (18.5 ≤ VIN ≤ 30) 120 (14.6 ≤ VIN ≤ 27) (8 ≤ VIN ≤ 12) 5 mA ≤ IO ≤ 1.5A 15.6 15.75 4 25 ΔVIN ΔVO 15 14.25 (15 ≤ VIN ≤ 27) (7.5 ≤ VIN ≤ 20) −55°C ≤ TJ ≤ +150°C 14.4 12.6 Units Max (18.5 ≤ VIN ≤ 30) 50 ΔVIN 12.5 (14.5 ≤ VIN ≤ 30) (8 ≤ VIN ≤ 20) TJ = 25°C Typ 4 50 ΔVIN Min (15.5 ≤ VIN ≤ 27) 50 (7 ≤ VIN ≤ 25) −55°C ≤ TJ ≤ +150°C IO ≤ 1A 23V Max (8 ≤ VIN ≤ 20) TJ = 25°C 15V V 150 mV (17.7 ≤ VIN ≤ 30) 60 V 75 mV (16 ≤ VIN ≤ 22) (20 ≤ VIN ≤ 26) V 12 12 150 mV 50 120 25 60 75 mV 50 120 150 mV TJ = 25°C 6 6 6 mA −55°C ≤ TJ ≤ +150°C 7 7 7 mA −55°C ≤ TJ ≤ +150°C, 5 mA ≤ IO ≤ 1A IQ ΔIQ Quiescent Current IO ≤ 1A Quiescent Current Change 5 mA ≤ IO ≤ 1A 0.5 TJ = 25°C, IO ≤ 1A 0.8 VMIN ≤ VIN ≤ VMAX (8 ≤ VIN ≤ 20) IO = 500 mA, −55°C ≤ TJ ≤ +150°C Output Noise Voltage Ripple Rejection RO (1) TA = 25°C, 10 Hz ≤ f ≤ 100 kHz f = 120 Hz IO ≤ 1A, TJ = 25°C or 68 IO ≤ 500 mA, −55°C ≤ TJ ≤+150°C 68 0.5 0.8 (15 ≤ VIN ≤ 27) 0.8 VMIN ≤ VIN ≤ VMAX VN 0.5 mA 0.8 mA (18.5 ≤ VIN ≤ 30) 0.8 V 0.8 mA (8 ≤ VIN ≤ 25) (15 ≤ VIN ≤ 30) (18.5 ≤ VIN ≤ 30) V 40 75 90 μV 70 dB 80 61 72 60 61 60 dB VMIN ≤ VIN ≤ VMAX (8 ≤ VIN ≤ 18) (15 ≤ VIN ≤ 25) (18.5 ≤ VIN ≤ 28.5) V Dropout Voltage TJ = 25°C, IO = 1A 2.0 2.0 2.0 V Output Resistance f = 1 kHz 8 18 19 mΩ Short-Circuit Current TJ = 25°C 2.1 1.5 1.2 A Peak Output Current TJ = 25°C 2.4 2.4 2.4 A Average TC of VOUT 0°C ≤ TJ ≤ +150°C, IO = 5 mA −0.6 −1.5 −1.8 mV/°C 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. Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx 5 LM340-N, LM78xx SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 www.ti.com LM140 Electrical Characteristics(1) (continued) −55°C ≤ TJ ≤ +150°C unless otherwise specified Output Voltage Symb ol 5V Input Voltage (unless otherwise noted) Parameter VIN Conditions 12V 10V Min Typ 15V 19V Max Min Typ 23V Max Min Typ Units Max TJ = 25°C, IO ≤ 1A Input Voltage Required to Maintain Line Regulation 7.5 14.6 17.7 V LM340-N Electrical Characteristics (1) 0°C ≤ TJ ≤ +125°C unless otherwise specified Output Voltage Symbol Input Voltage (unless otherwise noted) Parameter VO 5V Output Voltage Line Regulation 10V 19V Max Min Typ Max Min Typ Max TJ = 25°C, 5 mA ≤ IO ≤ 1A 4.8 5 5.2 11.5 12 12.5 14.4 15 15.6 V PD ≤ 15W, 5 mA ≤ IO ≤ 1A 4.75 5.25 11.4 12.6 14.25 15.75 V IO = 500 mA IO ≤ 1A (7.5 ≤ VIN ≤ 20) (14.5 ≤ VIN ≤ 27) (17.5 ≤ VIN ≤ 30) V 3 4 4 mV TJ = 25°C ΔVIN (8 ≤ VIN ≤ 20) TJ = 25°C 50 (8 ≤ VIN ≤ 12) 5 mA ≤ IO ≤ 1.5A 10 75 V mV (16 ≤ VIN ≤ 22) (20 ≤ VIN ≤ 26) V 12 12 150 mV 50 120 75 mV 5 mA ≤ IO ≤ 1A, 0°C ≤ TJ ≤ +125°C 50 120 150 mV IO ≤ 1A Quiescent Current Change 5 mA ≤ IO ≤ 1A TJ = 25°C 8 8 8 mA 0°C ≤ TJ ≤ +125°C 8.5 8.5 8.5 mA 0.5 TJ = 25°C, IO ≤ 1A (7.5 ≤ VIN ≤ 20) f = 120 Hz IO ≤ 1A, TJ = 25°C 62 or IO ≤ 500 mA, 0°C ≤ TJ ≤ +125°C 62 VMIN ≤ VIN ≤ VMAX 0.5 1.0 (14.8 ≤ VIN ≤ 27) 1.0 TA = 25°C, 10 Hz ≤ f ≤ 100 kHz Ripple Rejection 0.5 1.0 VMIN ≤ VIN ≤ VMAX 6 60 mV 60 IO ≤ 500 mA, 0°C ≤ TJ ≤ +125°C (1) 150 (17.7 ≤ VIN ≤ 30) V 25 Quiescent Current Output Noise Voltage 120 V mV 250 mA ≤ IO ≤ 750 mA VMIN ≤ VIN ≤ VMAX VN 150 (18.5 ≤ VIN ≤ 30) (14.6 ≤ VIN ≤ 27) 25 150 (17.5 ≤ VIN ≤ 30) 120 (15 ≤ VIN ≤ 27) (7.5 ≤ VIN ≤ 20) ΔVIN 120 (14.5 ≤ VIN ≤ 30) 50 0°C ≤ TJ ≤ +125°C Load Regulation TJ = 25°C 50 (7 ≤ VIN ≤ 25) ΔVIN ΔIQ Units Typ ΔVIN IQ 23V Min 0°C ≤ TJ ≤ +125°C ΔVO 15V Conditions VMIN ≤ VIN ≤ VMAX ΔVO 12V mA 1.0 (17.9 ≤ VIN ≤ 30) 1.0 1.0 mA V mA (7 ≤ VIN ≤ 25) (14.5 ≤ VIN ≤ 30) (17.5 ≤ VIN ≤ 30) V 40 75 90 μV 70 dB 80 55 72 55 (8 ≤ VIN ≤ 18) (15 ≤ VIN ≤ 25) 54 54 dB (18.5 ≤ VIN ≤ 28.5) V 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. Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx LM340-N, LM78xx www.ti.com SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 LM340-N Electrical Characteristics(1) (continued) 0°C ≤ TJ ≤ +125°C unless otherwise specified Output Voltage Symbol Input Voltage (unless otherwise noted) Parameter RO 5V Conditions 10V Min Dropout Voltage TJ = 25°C, IO = 1A VIN 12V Typ 15V 19V Max Min 23V Typ Max Min Typ Units Max 2.0 2.0 2.0 V Output Resistance f = 1 kHz 8 18 19 mΩ Short-Circuit Current TJ = 25°C 2.1 1.5 1.2 A Peak Output Current TJ = 25°C 2.4 2.4 2.4 A Average TC of VOUT 0°C ≤ TJ ≤ +125°C, IO = 5 mA −0.6 −1.5 −1.8 mV/°C Input Voltage Required to Maintain Line Regulation TJ = 25°C, IO ≤ 1A 7.5 14.6 17.7 V LM7808C Electrical Characteristics 0°C ≤ TJ ≤ +150°C, VI = 14V, IO = 500 mA, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified Symbol Conditions (1) Parameter VO Output Voltage TJ = 25°C ΔVO Line Regulation TJ = 25°C LM7808C Units Min Typ Max 7.7 8.0 8.3 V 10.5V ≤ VI ≤ 25V 6.0 160 mV 11.0V ≤ VI ≤ 17V 2.0 80 5.0 mA ≤ IO ≤ 1.5A 12 160 ΔVO Load Regulation TJ = 25°C VO Output Voltage 11.5V ≤ VI ≤ 23V, 5.0 mA ≤ IO ≤ 1.0A, P ≤ 15W IQ Quiescent Current TJ = 25°C ΔIQ Quiescent With Line 11.5V ≤ VI ≤ 25V Current Change With Load 5.0 mA ≤ IO ≤ 1.0A 250 mA ≤ IO ≤ 750 mA 4.0 7.6 4.3 mV 80 8.4 V 8.0 mA 1.0 mA 0.5 VN Noise TA = 25°C, 10 Hz ≤ f ≤ 100 kHz ΔVI/ΔVO Ripple Rejection f = 120 Hz, IO = 350 mA, TJ = 25°C VDO Dropout Voltage IO = 1.0A, TJ = 25°C 2.0 V RO Output Resistance f = 1.0 kHz 16 mΩ IOS Output Short Circuit Current TJ = 25°C, VI = 35V 0.45 A IPK Peak Output Current TJ = 25°C 2.2 A ΔVO/ΔT Average Temperature Coefficient of Output Voltage IO = 5.0 mA 0.8 mV/°C (1) 56 52 μV 72 dB 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. Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx 7 LM340-N, LM78xx SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 www.ti.com Typical Performance Characteristics Maximum Average Power Dissipation Maximum Average Power Dissipation Figure 7. Figure 8. Maximum Power Dissipation (DDPAK/TO-263) (See Note 2) Output Voltage (Normalized to 1V at TJ = 25°C) Figure 9. 8 Shaded area refers to LM340A/LM340-N, LM7805C, LM7812C and LM7815C. Figure 10. Ripple Rejection Ripple Rejection Figure 11. Figure 12. Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx LM340-N, LM78xx www.ti.com SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 Typical Performance Characteristics (continued) Output Impedance Dropout Characteristics Figure 13. Figure 14. Quiescent Current Peak Output Current Shaded area refers to LM340A/LM340-N, LM7805C, LM7812C and LM7815C. Figure 15. Dropout Voltage Figure 16. Quiescent Current Shaded area refers to LM340A/LM340-N, LM7805C, LM7812C and LM7815C. Figure 17. Figure 18. Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx 9 LM340-N, LM78xx SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 www.ti.com Typical Performance Characteristics (continued) Line Regulation 140AK-5.0, IOUT = 1A, TA = 25°C Line Regulation 140AK-5.0, VIN = 10V, TA = 25°C Figure 19. Figure 20. Equivalent Schematic 10 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx LM340-N, LM78xx www.ti.com SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 APPLICATION HINTS The LM340-N/LM78XX series is designed with thermal protection, output short-circuit protection and output transistor safe area protection. However, as with any IC regulator, it becomes necessary to take precautions to assure that the regulator is not inadvertently damaged. The following describes possible misapplications and methods to prevent damage to the regulator. SHORTING THE REGULATOR INPUT When using large capacitors at the output of these regulators, a protection diode connected input to output (Figure 21) may be required if the input is shorted to ground. Without the protection diode, an input short will cause the input to rapidly approach ground potential, while the output remains near the initial VOUTbecause of the stored charge in the large output capacitor. The capacitor will then discharge through a large internal input to output diode and parasitic transistors. If the energy released by the capacitor is large enough, this diode, low current metal and the regulator will be destroyed. The fast diode in Figure 21 will shunt most of the capacitors discharge current around the regulator. Generally no protection diode is required for values of output capacitance ≤ 10 μF. RAISING THE OUTPUT VOLTAGE ABOVE THE INPUT VOLTAGE Since the output of the device does not sink current, forcing the output high can cause damage to internal low current paths in a manner similar to that just described in the “Shorting the Regulator Input” section. REGULATOR FLOATING GROUND (Figure 22) When the ground pin alone becomes disconnected, the output approaches the unregulated input, causing possible damage to other circuits connected to VOUT. If ground is reconnected with power “ON”, damage may also occur to the regulator. This fault is most likely to occur when plugging in regulators or modules with on card regulators into powered up sockets. Power should be turned off first, thermal limit ceases operating, or ground should be connected first if power must be left on. TRANSIENT VOLTAGES If transients exceed the maximum rated input voltage of the device, or reach more than 0.8V below ground and have sufficient energy, they will damage the regulator. The solution is to use a large input capacitor, a series input breakdown diode, a choke, a transient suppressor or a combination of these. Figure 21. Input Short Figure 22. Regulator Floating Ground Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx 11 LM340-N, LM78xx SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 www.ti.com Figure 23. Transients When a value for θ(H–A) is found using the equation shown, a heatsink must be selected that has a value that is less than or equal to this number. θ(H–A) is specified numerically by the heatsink manufacturer in this catalog, or shown in a curve that plots temperature rise vs power dissipation for the heatsink. HEATSINKING DDPAK/TO-263 AND SOT-223 PACKAGE PARTS Both the DDPAK/TO-263 (KTT) and SOT-223 (DCY) packages use a copper plane on the PCB and the PCB itself as a heatsink. To optimize the heat sinking ability of the plane and PCB, solder the tab of the plane. shows for the DDPAK/TO-263 the measured values of θ(J–A) for different copper area sizes using a typical PCB with 1 ounce copper and no solder mask over the copper area used for heatsinking. Figure 24. θ(J–A) vs Copper (1 ounce) Area for the DDPAK/TO-263 Package As shown in the figure, increasing the copper area beyond 1 square inch produces very little improvement. It should also be observed that the minimum value of θ(J–A) for the DDPAK/TO-263 package mounted to a PCB is 32°C/W. As a design aid, Figure 25 shows the maximum allowable power dissipation compared to ambient temperature for the DDPAK/TO-263 device (assuming θ(J–A) is 35°C/W and the maximum junction temperature is 125°C). 12 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx LM340-N, LM78xx www.ti.com SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 Figure 25. Maximum Power Dissipation vs TAMB for the DDPAK/TO-263 Package Figure 26 and Figure 27 show the information for the SOT-223 package. Figure 26 assumes a θ(J–A) of 74°C/W for 1 ounce copper and 51°C/W for 2 ounce copper and a maximum junction temperature of 125°C. Figure 26. θ(J–A) vs Copper (2 ounce) Area for the SOT-223 Package Figure 27. Maximum Power Dissipation vs TAMB for the SOT-223 Package Please see AN-1028 (SNVA036) for power enhancement techniques to be used with the SOT-223 package. Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx 13 LM340-N, LM78xx SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 www.ti.com Typical Applications INPUT OUTPUT VI VO + + 0.22 PF 0.1 PF GND Bypass capacitors are recommended for optimum stability and transient response, and should be located as close as possible to the regulator. Figure 28. Fixed Output Regulator INPUT OUTPUT VI VO 0.22 PF VI 0.1 PF (NOTE 1) GND INPUT OUTPUT VO GND 0.22 PF 0.1 PF Figure 29. High Input Voltage Circuits 14 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx LM340-N, LM78xx www.ti.com SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 Q1 2N6133 IQ1 VI R1 3.0: IREG IO MAX OUTPUT VO INPUT 0.22 PF 0.1 PF GND Figure 30. High Current Voltage Regulator RSC Q1 2N6132 IN Q2 2N6124 INPUT OUT R1 3.0: OUTPUT 0.22 PF GND 0.1 PF Figure 31. High Output Current, Short Circuit Protected Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx 15 LM340-N, LM78xx SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 www.ti.com INPUT OUTPUT + + OUT + 0.1 PF GND INPUT OUTPUT + + GND 0.1 PF - OUT Figure 32. Positive and Negative Regulator 16 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx LM340-N, LM78xx www.ti.com SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 REVISION HISTORY Changes from Revision I (March 2013) to Revision J • Page Changed 0.5 from typ to max ............................................................................................................................................... 4 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx 17 PACKAGE OPTION ADDENDUM www.ti.com 11-Dec-2013 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking (4/5) LM340AT-5.0 NRND TO-220 NDE 3 45 TBD Call TI Call TI 0 to 70 LM340AT 5.0 P+ LM340AT-5.0/NOPB ACTIVE TO-220 NDE 3 45 Pb-Free (RoHS Exempt) CU SN Level-1-NA-UNLIM 0 to 70 LM340AT 5.0 P+ LM340K-5.0 ACTIVE TO-3 NDS 2 50 TBD Call TI Call TI 0 to 70 LM340K -5.0 7805P+ LM340K-5.0/NOPB ACTIVE TO-3 NDS 2 50 Green (RoHS & no Sb/Br) POST-PLATE Level-1-NA-UNLIM 0 to 70 LM340K -5.0 7805P+ LM340MP-5.0 NRND SOT-223 DCY 4 1000 TBD Call TI Call TI 0 to 70 N00A LM340MP-5.0/NOPB ACTIVE SOT-223 DCY 4 1000 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM 0 to 70 N00A LM340MPX-5.0/NOPB ACTIVE SOT-223 DCY 4 2000 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM 0 to 70 N00A LM340S-12/NOPB ACTIVE DDPAK/ TO-263 KTT 3 45 Pb-Free (RoHS Exempt) CU SN Level-3-245C-168 HR 0 to 70 LM340S -12 P+ LM340S-5.0 NRND DDPAK/ TO-263 KTT 3 45 TBD Call TI Call TI 0 to 70 LM340S -5.0 P+ LM340S-5.0/NOPB ACTIVE DDPAK/ TO-263 KTT 3 45 Pb-Free (RoHS Exempt) CU SN Level-3-245C-168 HR 0 to 70 LM340S -5.0 P+ LM340SX-12 NRND DDPAK/ TO-263 KTT 3 500 TBD Call TI Call TI 0 to 70 LM340S -12 P+ LM340SX-12/NOPB ACTIVE DDPAK/ TO-263 KTT 3 500 Pb-Free (RoHS Exempt) CU SN Level-3-245C-168 HR 0 to 70 LM340S -12 P+ LM340SX-5.0 NRND DDPAK/ TO-263 KTT 3 500 TBD Call TI Call TI 0 to 70 LM340S -5.0 P+ LM340SX-5.0/NOPB ACTIVE DDPAK/ TO-263 KTT 3 500 Pb-Free (RoHS Exempt) CU SN Level-3-245C-168 HR 0 to 70 LM340S -5.0 P+ LM340T-12 NRND TO-220 NDE 3 45 TBD Call TI Call TI 0 to 70 LM340T12 7812 P+ LM340T-12/NOPB ACTIVE TO-220 NDE 3 45 Green (RoHS & no Sb/Br) CU SN Level-1-NA-UNLIM 0 to 70 LM340T12 7812 P+ LM340T-15 NRND TO-220 NDE 3 45 TBD Call TI Call TI 0 to 70 LM340T15 7815 P+ Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 11-Dec-2013 Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking (4/5) LM340T-15/NOPB ACTIVE TO-220 NDE 3 45 Green (RoHS & no Sb/Br) CU SN Level-1-NA-UNLIM 0 to 70 LM340T15 7815 P+ LM340T-5.0 NRND TO-220 NDE 3 45 TBD Call TI Call TI 0 to 70 LM340T5 7805 P+ LM340T-5.0/LF01 ACTIVE TO-220 NDG 3 45 Pb-Free (RoHS Exempt) CU SN Level-4-260C-72 HR LM340T-5.0/NOPB ACTIVE TO-220 NDE 3 45 Pb-Free (RoHS Exempt) CU SN Level-1-NA-UNLIM 0 to 70 LM340T5 7805 P+ LM7812CT NRND TO-220 NDE 3 45 TBD Call TI Call TI 0 to 70 LM340T12 7812 P+ LM7812CT/NOPB ACTIVE TO-220 NDE 3 45 Green (RoHS & no Sb/Br) CU SN Level-1-NA-UNLIM 0 to 70 LM340T12 7812 P+ LM340T5 7805 P+ (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. Addendum-Page 2 Samples PACKAGE OPTION ADDENDUM www.ti.com 11-Dec-2013 (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 3 PACKAGE MATERIALS INFORMATION www.ti.com 11-Dec-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) LM340MP-5.0 SOT-223 DCY 4 1000 330.0 16.4 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 7.0 7.5 2.2 12.0 16.0 Q3 LM340MP-5.0/NOPB SOT-223 DCY 4 1000 330.0 16.4 7.0 7.5 2.2 12.0 16.0 Q3 LM340MPX-5.0/NOPB SOT-223 DCY 4 2000 330.0 16.4 7.0 7.5 2.2 12.0 16.0 Q3 LM340SX-12 DDPAK/ TO-263 KTT 3 500 330.0 24.4 10.75 14.85 5.0 16.0 24.0 Q2 LM340SX-12/NOPB DDPAK/ TO-263 KTT 3 500 330.0 24.4 10.75 14.85 5.0 16.0 24.0 Q2 LM340SX-5.0 DDPAK/ TO-263 KTT 3 500 330.0 24.4 10.75 14.85 5.0 16.0 24.0 Q2 LM340SX-5.0/NOPB DDPAK/ TO-263 KTT 3 500 330.0 24.4 10.75 14.85 5.0 16.0 24.0 Q2 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 11-Dec-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LM340MP-5.0 SOT-223 DCY 4 1000 367.0 367.0 35.0 LM340MP-5.0/NOPB SOT-223 DCY 4 1000 367.0 367.0 35.0 LM340MPX-5.0/NOPB SOT-223 DCY 4 2000 367.0 367.0 35.0 LM340SX-12 DDPAK/TO-263 KTT 3 500 367.0 367.0 45.0 LM340SX-12/NOPB DDPAK/TO-263 KTT 3 500 367.0 367.0 45.0 LM340SX-5.0 DDPAK/TO-263 KTT 3 500 367.0 367.0 45.0 LM340SX-5.0/NOPB DDPAK/TO-263 KTT 3 500 367.0 367.0 45.0 Pack Materials-Page 2 MECHANICAL DATA NDS0002A www.ti.com MECHANICAL DATA NDE0003B www.ti.com MECHANICAL DATA NDG0003F T03F (Rev B) www.ti.com MECHANICAL DATA MPDS094A – APRIL 2001 – REVISED JUNE 2002 DCY (R-PDSO-G4) PLASTIC SMALL-OUTLINE 6,70 (0.264) 6,30 (0.248) 3,10 (0.122) 2,90 (0.114) 4 0,10 (0.004) M 3,70 (0.146) 3,30 (0.130) 7,30 (0.287) 6,70 (0.264) Gauge Plane 1 2 0,84 (0.033) 0,66 (0.026) 2,30 (0.091) 4,60 (0.181) 1,80 (0.071) MAX 3 0°–10° 0,10 (0.004) M 0,25 (0.010) 0,75 (0.030) MIN 1,70 (0.067) 1,50 (0.059) 0,35 (0.014) 0,23 (0.009) Seating Plane 0,08 (0.003) 0,10 (0.0040) 0,02 (0.0008) 4202506/B 06/2002 NOTES: A. B. C. D. All linear dimensions are in millimeters (inches). This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion. Falls within JEDEC TO-261 Variation AA. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA KTT0003B TS3B (Rev F) BOTTOM SIDE OF PACKAGE www.ti.com IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. 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