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Details, datasheet, quote on part number:LM340T-5.0
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| Part: | LM340T-5.0 |
| Category: | Power Management => Regulators => Linear Voltage Regulators => Positive => Fixed |
| Description: | LM340 - Series 3-Terminal Positive Regulators, Package: SOT-223, Pin Nb=4 |
| Company: | National Semiconductor Corporation |
| Datasheet: | Download LM340T-5.0 datasheet File size : 614 kB |
| Request For quote: | Find where to buy LM340T-5.0
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Datasheet text preview:
LM340/LM78XX Series 3-Terminal Positive Regulators
April 2003
LM340/LM78XX Series 3-Terminal Positive Regulators
General Description
The LM140/LM340A/LM340/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. 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/LM78XXC series is available in the TO-220 plastic power package, and the LM340-5.0 is available in the SOT-223 package, as well as the LM340-5.0 and LM340-12 in the surface-mount TO263 package.
Features
n Complete specifications at 1A load n Output voltage tolerances of ± 2% at Tj = 25°C and ± 4% over the temperature range (LM340A) n Line regulation of 0.01% of VOUT/V of VIN at 1A load (LM340A) n Load regulation of 0.3% of VOUT/A (LM340A) n Internal thermal overload protection n Internal short-circuit current limit n Output transistor safe area protection n P+ Product Enhancement tested
Typical Applications
Fixed Output Regulator Adjustable Output Regulator
00778102 00778101
*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).
VOUT = 5V + (5V/R1 + IQ) R2 5V/R1 > 3 IQ, load regulation (Lr) [(R1 + R2)/R1] (Lr of LM340-5).
Current Regulator
Comparison between SOT-223 and D-Pak (TO-252) Packages
00778103
00778138
Scale 1:1
IQ = 1.3 mA over line and load changes.
© 2003 National Semiconductor Corporation
DS007781
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LM340/LM78XX
Ordering Information
Package 3-Lead TO-3 Temperature Range 0°C to +125°C Part Number LM340K-5.0 LM340K-12 LM340K-15 3-lead TO-220 0°C to +125°C LM340AT-5.0 LM340T-5.0 LM340T-12 LM340T-15 3-Lead TO-263 0°C to +125°C LM340S-5.0 LM340SX-5.0 LM340S-12 LM340SX-12 LM340AS-5.0 LM340ASX-5.0 4-Lead SOT-223 Unpackaged Die 0°C to +125°C -55°C to 125°C LM340MP-5.0 LM340MPX-5.0 LM140KG-5 MD8 LM140KG-12 MD8 LM140KG-15 MD8 Packaging Marking LM340K-5.0 7805P+ LM340K 12 7812P+ LM340K 15 7815P+ LM340AT 5.0 P+ LM340T5 7805 P+ LM340T12 7812 P+ LM340T15 7815 P+ LM340S-5.0 P+ LM340S-12 P+ LM340AS-5.0 P+ N00A Transport Media 50 Per Bag 50 Per Bag 50 Per Bag 45 Units/Rail 45 Units/Rail 45 Units/Rail 45 Units/Rail 45 Units/Rail 500 Units Tape and Reel 45 Units/Rail 500 Units Tape and Reel 45 Units/Rail 500 Units Tape and Reel 1k Units Tape and Reel 2k Units Tape and Reel 221 Per Waffle Pack 221 Per Waffle Pack 221 Per Waffle Pack DL069089 DL059093 DL059093 MA04A TS3B T03B NSC Drawing K02A
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LM340/LM78XX
Absolute Maximum Ratings
(Note 1)
Lead Temperature (Soldering, 10 sec.) TO-3 Package (K) TO-220 Package (T), TO-263 Package (S) ESD Susceptibility (Note 3) 300°C 230°C 2 kV
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. (Note 5) DC Input Voltage All Devices except LM7824/LM7824C LM7824/LM7824C Internal Power Dissipation (Note 2) Maximum Junction Temperature Storage Temperature Range 35V 40V Internally Limited 150°C -65°C to +150°C
Operating Conditions (Note 1)
Temperature Range (TA) (Note 2) LM140A, LM140 LM340A, LM340, LM7800 -55°C to +125°C 0°C to +125°C
LM340A Electrical Characteristics
IOUT = 1A, -55°C TJ +150°C (LM140A), or 0°C TJ + 125°C (LM340A) unless otherwise specified (Note 4) Output Voltage Symbol VO Input Voltage (unless otherwise noted) Parameter Output Voltage TJ = 25°C PD 15W, 5 mA IO 1A VMIN VIN VMAX V O Line Regulation IO = 500 mA VIN TJ = 25°C VIN TJ = 25°C Over Temperature VIN V O Load Regulation TJ = 25°C 5 mA IO 1.5A 250 mA IO 750 mA Over Temperature, 5 mA IO 1A IQ Quiescent Current Quiescent Current Change TJ = 25°C Over Temperature IQ 5 mA IO 1A TJ = 25°C, IO = 1A VMIN VIN VMAX IO = 500 mA VMIN VIN VMAX VN Output Noise Voltage Ripple Rejection TA = 25°C, 10 Hz f 100 kHz TJ = 25°C, f = 120 Hz, IO = 1A or f = 120 Hz, IO = 500 mA, Over Temperature, VMIN VIN VMAX RO Dropout Voltage Output Resistance TJ = 25°C, IO = 1A f = 1 kHz (8 VIN 18) 2.0 8 (15 VIN 25) 2.0 18 (18.5 VIN 28.5) 2.0 19 V V m 68 68 40 80 61 61 0.5 0.8 (7.5 VIN 20) 0.8 (8 VIN 25) 75 72 60 60 6 6.5 0.5 0.8 (14.8 VIN 27) 0.8 (15 VIN 30) 90 70 6 6.5 0.5 0.8 (17.9 VIN 30) 0.8 (17.9 VIN 30) 6 6.5 mA mA mA mA V mA V µV dB dB 10 3 Conditions 4.9 4.8 5V 10V Min Typ Max 5 5.1 5.2 10 (7.5 VIN 20) 10 4 12 (8 VIN 12) 25 15 25 12 (7.5 VIN 20) 4 Min 11.75 11.5 12V 19V Typ Max 12.5 18 (14.8 VIN 27) 18 9 30 (16 VIN 22) 32 19 60 12 (14.5 VIN 27) 4 Min 14.4 12 12.25 14.7 15V 23V Typ Max 15 15.3 15.6 22 (17.9 VIN 30) 22 10 30 (20 VIN 26) 35 21 75 (17.5 VIN 30) V V V mV V mV V mV mV V mV mV mV Units
(7.5 VIN 20)
(14.8 VIN 27)
(17.9 VIN 30)
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