Data Sheet

ManualsBrandsUnbranded ManualsActive ComponentsLM340LAZ-5.0/NOPB PMIC - LDO voltage regulator Positive, fixed TO 92 3

LM140L, LM340L

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SNVS758B –APRIL 1998–REVISED MARCH 2013

LM140L/LM340L Series 3-Terminal Positive Regulators

Check for Samples: LM140L, LM340L

FEATURES

The LM140LA/LM340LA are available in the low

• Line Regulation of 0.04%/V

profile metal three lead TO (NDT) and the LM340LA

• Load Regulation of 0.01%/mA

are also available in the plastic TO-92 (LP). With

• Output Voltage Tolerances of

adequate heat sinking the regulator can deliver 100

mA output current. Current limiting is included to limit

– ±2% at T

= 25°C and ±4% Over the

the peak output current to a safe value. Safe area

Temperature Range (LM140LA)

protection for the output transistor is provided to limit

– ±3% Over the Temperature Range

internal power dissipation. If internal power

(LM340LA)

dissipation becomes too high for the heat sinking

• Output Current of 100 mA

provided, the thermal shut-down circuit takes over,

preventing the IC from overheating.

• Internal Thermal Overload Protection

• Output Transistor Safe Area Protection

For applications requiring other voltages, see LM117L

Data Sheet.

• Internal Short Circuit Current Limit

• Available in

Output Voltage Options

– Metal TO Low Profile Package

LM140LA-5.0 5V LM340LA-5.0 5V

(LM140LA/LM340LA)

LM140LA-12 12V LM340LA-12 12V

– Plastic TO-92 (LM340LA)

LM140LA-15 15V LM340LA-15 15V

DESCRIPTION

The LM140L series of three terminal positive

Connection Diagrams

regulators is available with several fixed output

voltages making them useful in a wide range of

applications. The LM140LA is an improved version of

the LM78LXX series with a tighter output voltage

tolerance (specified over the full military temperature

range), higher ripple rejection, better regulation and

lower quiescent current. The LM140LA regulators

have ±2% V

OUT

specification, 0.04%/V line regulation,

and 0.01%/mA load regulation. When used as a

zener diode/resistor combination replacement, the

Figure 1. TO Metal Can Package (NDT)

LM140LA usually results in an effective output

(Bottom View)

impedance improvement of two orders of magnitude,

and lower quiescent current. These regulators can

provide local on card regulation, eliminating the

distribution problems associated with single point

regulation. The voltages available allow the LM140LA

to be used in logic systems, instrumentation, Hi-Fi,

and other solid state electronic equipment. Although

designed primarily as fixed voltage regulators, these

devices can be used with external components to

Figure 2. TO-92 Plastic Package (LP)

obtain adjustable voltages and currents.

(Bottom View)

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.

2All 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.

Summary of content (14 pages)

PAGE 1
LM140L, LM340L www.ti.com SNVS758B – APRIL 1998 – REVISED MARCH 2013 LM140L/LM340L Series 3-Terminal Positive Regulators Check for Samples: LM140L, LM340L FEATURES 1 • • • 2 • • • • • Line Regulation of 0.04%/V Load Regulation of 0.
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LM140L, LM340L SNVS758B – APRIL 1998 – REVISED MARCH 2013 www.ti.com 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.
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LM140L, LM340L www.ti.com SNVS758B – APRIL 1998 – REVISED MARCH 2013 Electrical Characteristics (continued) Test conditions unless otherwise specified. TA = −55°C to +125°C (LM140LA), TA = 0°C to +70°C (LM340LA), IO = 40 mA, CIN = 0.33 μF, CO = 0.01 μF. Output Voltage Option 5.
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LM140L, LM340L SNVS758B – APRIL 1998 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics 4 Maximum Average Power Dissipation Maximum Average Power Dissipation (Metal Can Package) Figure 3. Figure 4. Maximum Average Power Dissipation (Plastic Package) Peak Output Current Figure 5. Figure 6. Dropout Voltage Output Impedance Figure 7. Figure 8.
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LM140L, LM340L www.ti.com SNVS758B – APRIL 1998 – REVISED MARCH 2013 Typical Performance Characteristics (continued) Ripple Rejection Quiescent Current Figure 9. Figure 10. Quiescent Current Figure 11.
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LM140L, LM340L SNVS758B – APRIL 1998 – REVISED MARCH 2013 www.ti.com TYPICAL APPLICATIONS *Required if the regulator is located far from the power supply filter. **It is recommended that a minimum load capacitor of 0.01 μF be used to limit the high frequency noise bandwidth. Figure 12. Fixed Output Regulator VOUT = 5V + (5V/R1 + IO) R2 5V/R1 = 3 IO load regulation (L,) [(R1 + R2)/R1] (L, of LM140LA-5.0) Figure 13.
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LM140L, LM340L www.ti.
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LM140L, LM340L SNVS758B – APRIL 1998 – REVISED MARCH 2013 www.ti.com REVISION HISTORY Changes from Revision A (March 2013) to Revision B • 8 Page Changed layout of National Data Sheet to TI format ............................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com (4) 18-Oct-2013 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.
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MECHANICAL DATA NDT0003A H03A (Rev D) www.ti.
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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.