Product details

Output options Adjustable Output Iout (Max) (A) 3 Vin (Max) (V) 35 Vin (Min) (V) 4.2 Vout (Max) (V) 32 Vout (Min) (V) 1.25 Noise (uVrms) 13 Iq (Typ) (mA) 0.05 Thermal resistance θJA (°C/W) 35 Rating Catalog Load capacitance (Min) (µF) 0 Regulated outputs (#) 1 Features Accuracy (%) 1.8 PSRR @ 100 KHz (dB) 40 Dropout voltage (Vdo) (Typ) (mV) 2300 Operating temperature range (C) -40 to 125
Output options Adjustable Output Iout (Max) (A) 3 Vin (Max) (V) 35 Vin (Min) (V) 4.2 Vout (Max) (V) 32 Vout (Min) (V) 1.25 Noise (uVrms) 13 Iq (Typ) (mA) 0.05 Thermal resistance θJA (°C/W) 35 Rating Catalog Load capacitance (Min) (µF) 0 Regulated outputs (#) 1 Features Accuracy (%) 1.8 PSRR @ 100 KHz (dB) 40 Dropout voltage (Vdo) (Typ) (mV) 2300 Operating temperature range (C) -40 to 125
TO-220 (NDE) 3 47 mm² 10.16 x 4.58
  • 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
  • Ensured 1% Output Voltage Tolerance (LM350A)
  • Ensured Max. 0.01%/V Line Regulation (LM350A)
  • Ensured Max. 0.3% Load Regulation (LM350A)
  • 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
  • Ensured 1% Output Voltage Tolerance (LM350A)
  • Ensured Max. 0.01%/V Line Regulation (LM350A)
  • Ensured Max. 0.3% Load Regulation (LM350A)

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 NDS suffix are packaged in a standard Steel TO-3 package, while those with a NDE 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.

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 NDS suffix are packaged in a standard Steel TO-3 package, while those with a NDE 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.

Download

Similar products you might be interested in

open-in-new Compare products
Similar functionality to the compared device.
LP38690 ACTIVE 1-A, 10-V, low-dropout voltage regulator Lower dropout voltage
LP38692 ACTIVE 1-A, 10-V, low-dropout voltage regulator with enable Lower dropout voltage, shutdown mode

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 8
Type Title Date
* Data sheet LM150/LM350A/LM350 3-Amp Adjustable Regulators datasheet (Rev. B) 20 Mar 2013
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 Jun 2019
Application note AN-103 LM340 Series Three Terminal Positive Regulators (Rev. A) 06 May 2013
Application note AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) 06 May 2013
Application note Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A) 05 May 2013
Application note Packaging Limits Range of Linear Regulators 08 May 2010
Application note Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A) 04 Jun 2008
Application note Understanding the Terms and Definitions of LDO Voltage Regulators 21 Oct 1999

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Package Pins Download
TO-220 (NDE) 3 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos