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Details, datasheet, quote on part number:LM150K/883
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Datasheet text preview:
LM150/LM350A/LM350 3-Amp Adjustable Regulators
May 1998
LM150/LM350A/LM350 3-Amp Adjustable Regulators
General Description
The LM150 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 3A over a 1.2V to 33V output range. They are exceptionally easy to use and require only 2 external resistors to set the output voltage. Further, both line and load regulation are comparable to discrete designs. Also, the LM150 is packaged in standard transistor packages which are easily mounted and handled. In addition to higher performance than fixed regulators, the LM150 series offers full overload protection available only in IC's. Included on the chip are current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is accidentally disconnected. Normally, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors in which case an input bypass is needed. An output capacitor can be added to improve transient response, while bypassing the adjustment pin will increase the regulator's ripple rejection. Besides replacing fixed regulators or discrete designs, the LM150 is useful in a wide variety of other applications. Since the regulator is "floating" and sees only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input to output differential is not exceeded, i.e., avoid short-circuiting the output. By connecting a fixed resistor between the adjustment pin and output, the LM150 can be used as a precision current regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground which programs the output to 1.2V where most loads draw little current. The part numbers in the LM150 series which have a K suffix are packaged in a standard Steel TO-3 package, while those with a T suffix are packaged in a TO-220 plastic package. The LM150 is rated for -55°C TJ +150°C, while the LM350A is rated for -40°C TJ +125°C, and the LM350 is rated for 0°C TJ +125°C.
Features
n n n n n n n n n n Adjustable output down to 1.2V Guaranteed 3A output current Guaranteed thermal regulation Output is short circuit protected Current limit constant with temperature P+ Product Enhancement tested 86 dB ripple rejection Guaranteed 1% output voltage tolerance (LM350A) Guaranteed max. 0.01%/V line regulation (LM350A) Guaranteed max. 0.3% load regulation (LM350A)
Applications
n Adjustable power supplies n Constant current regulators n Battery chargers
Connection Diagrams
(TO-3 STEEL) Metal Can Package (TO-220) Plastic Package
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Case is Output
Front View Order Number LM350AT or LM350T See NS Package Number T03B
Bottom View Order Number LM150K STEEL or LM350K STEEL See NS Package Number K02A Order Number LM150K/883 See NS Package Number K02C
© 1999 National Semiconductor Corporation
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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. (Note 4) Power Dissipation Input-Output Voltage Differential Storage Temperature Internally Limited +35V -65°C to +150°C
Lead Temperature Metal Package (Soldering, 10 sec.) Plastic Package (Soldering, 4 sec.) ESD Tolerance Operating Temperature Range LM150 LM350A LM350
300°C 260°C TBD -55°C TJ +150°C -40°C TJ +125°C 0°C TJ +125°C
Electrical Characteristics
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range. Unless otherwise specified, VIN- VOUT = 5V, and IOUT = 10 mA. (Note 2) Parameter Reference Voltage Line Regulation Load Regulation Thermal Regulation Adjustment Pin Current Adjustment Pin Current Change Temperature Stability Minimum Load Current Current Limit RMS Output Noise, % of VOUT Ripple Rejection Ratio Long-Term Stability Thermal Resistance, Junction to Case Thermal Resistance, Junction to Ambient (No Heat Sink) K Package 35 °C/W 10 mA IOUT 3A, 3V (VIN - VOUT) 35V TMIN TJ TMAX VIN - VOUT = 35V VIN - VOUT 10V VIN - VOUT = 30V 10 Hz f 10 kHz VOUT = 10V, f = 120 Hz, CADJ = 0 µF VOUT = 10V, f = 120 Hz, CADJ = 10 µF TJ = 125°C, 1000 hrs K Package 3.0 0.3 Conditions Min 3V (VIN - VOUT) 35V, 10 mA IOUT 3A, P 30W 3V (VIN - VOUT) 35V (Note 3) 10 mA IOUT 3A (Note 3) 20 ms Pulse 0.005 0.02 0.1 0.3 0.002 50 0.2 1 3.5 4.5 1 0.001 65 66 86 0.3 1.2 1 1.5 5 0.01 0.05 0.3 1 0.01 100 5 %/V %/V % % %/W µA µA % mA A A % dB dB % °C/W 1.20 LM150 Typ 1.25 Max 1.30 V Units
Electrical Characteristics
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range. Unless otherwise specified, VIN - VOUT = 5V, and IOUT = 10 mA. (Note 2) Parameter Reference Voltage Conditions Min IOUT = 10 mA, TJ = 25°C 3V (VIN - VOUT) 35V, 10 mA IOUT 3A, P 30W Line Regulation Load Regulation Thermal Regulation Adjustment Pin Current Adjustment Pin Current Change 10 mA IOUT 3A, 3V (VIN - VOUT) 35V 3V (VIN - VOUT) 35V (Note 3) 10 mA IOUT 3A (Note 3) 20 ms Pulse 0.005 0.02 0.1 0.3 0.002 50 0.2 0.01 0.05 0.3 1 0.01 100 5 0.005 0.02 0.1 0.3 0.002 50 0.2 0.03 0.07 0.5 1.5 0.03 100 5 %/V %/V % % %/W µA µA LM350A Typ Max Min 1.20 1.238 1.250 1.262 1.225 1.250 1.270 1.25 1.30 LM350 Typ Max V V Units
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Electrical Characteristics
Parameter Temperature Stability Minimum Load Current Current Limit RMS Output Noise, % of VOUT Ripple Rejection Ratio Long-Term Stability Thermal Resistance, Junction to Case Thermal Resistance, Junction to Ambient (No Heat Sink)
(Continued)
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range. Unless otherwise specified, VIN - VOUT = 5V, and IOUT = 10 mA. (Note 2) Conditions Min TMIN TJ TMAX VIN - VOUT = 35V VIN - VOUT 10V VIN - VOUT = 30V 10 Hz f 10 kHz VOUT = 10V, f = 120 Hz, CADJ = 0 µF VOUT = 10V, f = 120 Hz, CADJ = 10 µF TJ = 125°C, 1000 hrs K Package T Package K Package T Package 50 3 4 3.0 0.3 LM350A Typ 1 3.5 4.5 1 0.001 65 66 86 0.25 1 66 10 3.0 0.25 Max Min LM350 Typ 1 3.5 4.5 1 0.001 65 86 0.25 1.2 3 35 50 1 1.5 4 10 Max % mA A A % dB dB % °C/W °C/W °C/W °C/W Units
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. Note 2: These specifications are applicable for power dissipations up to 30W for the TO-3 (K) package and 25W for the TO-220 (T) package. Power dissipation is guaranteed at these values up to 15V input-output differential. Above 15V differential, power dissipation will be limited by internal protection circuitry. All limits (i.e., the numbers in the Min. and Max. columns) are guaranteed to National's AOQL (Average Outgoing Quality Level). Note 3: Regulation is measured at a constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specifications for thermal regulation. Note 4: Refer to RETS150K drawing for military specifications of the LM150K.
Typical Performance Characteristics
Load Regulation Current Limit Adjustment Current
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Dropout Voltage
Temperature Stability
Minimum Operating Current
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