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LM117JAN

www.ti.com

SNVS365A –MARCH 2006–REVISED MARCH 2013

LM117JAN 3-Terminal Adjustable Regulator

Check for Samples: LM117JAN

Also, it makes an especially simple adjustable

FEATURES

switching regulator, a programmable output regulator,

• Specified 0.5A or 1.5A Output Current

or by connecting a fixed resistor between the

• Adjustable Output Down to 1.2V

adjustment pin and output, the LM117 can be used

as a precision current regulator. Supplies with

• Current Limit Constant with Temperature

electronic shutdown can be achieved by clamping the

• 80 dB Ripple Rejection

adjustment terminal to ground which programs the

• Output is Short-circuit Protected

output to 1.2V where most loads draw little current.

For the negative complement, see LM137 series data

DESCRIPTION

sheet.

The LM117 adjustable 3-terminal positive voltage

regulator is capable of supplying either 0.5A or 1.5A

Connection Diagrams

over a 1.2V to 37V output range. It is exceptionally

easy to use and requires only two external resistors

to set the output voltage. Further, both line and load

regulation are better than standard fixed regulators.

In addition to higher performance than fixed

regulators, the LM117 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

CASE IS OUTPUT

remains fully functional even if the adjustment

Figure 1. (TO-3)

terminal is disconnected.

Metal Can Package

Normally, no capacitors are needed unless the device

Bottom View

is situated more than 6 inches from the input filter

Steel Package

capacitors in which case an input bypass is needed. Package Number K0002C

An optional output capacitor can be added to improve

transient response. The adjustment terminal can be

bypassed to achieve very high ripple rejection ratios

which are difficult to achieve with standard 3-terminal

regulators.

Besides replacing fixed regulators, the LM117 is

useful in a wide variety of other applications. Since

CASE IS OUTPUT

the regulator is “floating” and sees only the input-to-

output differential voltage, supplies of several

Figure 2. (TO)

hundred volts can be regulated as long as the

Metal Can Package

maximum input to output differential is not exceeded,

Bottom View

i.e., avoid short-circuiting the output.

Package Number NDT0003A

Table 1. LM117 Series Packages

Part Number Suffix Package Design Load Current

K TO-3 1.5A

NDT TO 0.5A

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.

LM117JAN

www.ti.com

SNVS365A –MARCH 2006–REVISED MARCH 2013

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)

Power Dissipation

(2)

Internally Limited

Input-Output Voltage Differential +40V, −0.3V

Storage Temperature −65°C ≤ T

≤ +150°C

Maximum Junction Temperature (T

Jmax

) +150°C

Lead Temperature Metal Package 300°C

Thermal Resistance

TO–3 Still Air 39°C/W

TO–3 500LF/Min Air flow 14°C/W

TO Still Air 186°C/W

TO 500LF/Min Air flow 64°C/W

TO–3 1.9°C/W

TO Metal Can 21°C/W

ESD Tolerance

(3)

3KV

(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional, but do not ensure specific performance limits. For ensured specifications and test conditions, see the

Electrical Characteristics. The ensured specifications apply only for the test conditions listed. Some performance characteristics may

degrade when the device is not operated under the listed test conditions.

(2) The maximum power dissipation must be derated at elevated temperatures and is dictated by T

Jmax

(maximum junction temperature),

(package junction to ambient thermal resistance), and T

(ambient temperature). The maximum allowable power dissipation at any

temperature is P

Dmax

= (T

Jmax

- T

)/θ

or the number given in the Absolute Maximum Ratings, whichever is lower. "Although power

dissipation is internally limited, these specifications are applicable for power dissipations of 2W for the TO package and 20W for the TO-

3 package."

(3) Human body model, 100 pF discharged through a 1.5 kΩ resistor.

Recommended Operating Conditions

Operating Temperature Range −55°C ≤ T

≤ +125°C

Input Voltage Range 4.25V to 41.25V

Quality Conformance Inspection

MIL-STD-883, Method 5005 - Group A

Subgroup Description Temp °C

1 Static tests at 25

2 Static tests at 125

3 Static tests at -55

4 Dynamic tests at 25

5 Dynamic tests at 125

6 Dynamic tests at -55

7 Functional tests at 25

8A Functional tests at 125

8B Functional tests at -55

9 Switching tests at 25

10 Switching tests at 125

11 Switching tests at -55

12 Settling time at 25

13 Settling time at 125

14 Settling time at -55

Product Folder Links: LM117JAN

LM117JAN

www.ti.com

SNVS365A –MARCH 2006–REVISED MARCH 2013

LM117H JAN Electrical Characteristics DC Drift Parameters

Deltas performed on JAN S devices at Group B, Subgroup 5, only.

Sub-

Symbol Parameter Conditions Notes Min Max Unit

group

Output Voltage V

= 4.25V, I

= -5mA -0.01 0.01 V 1

= 4.25V, I

= -500mA -0.01 0.01 V 1

= 41.25V, I

= -5mA -0.01 0.01 V 1

= 41.25V, I

= -50mA -0.01 0.01 V 1

RLine

Line Regulation 4.25V ≤ V

≤ 41.25V, -4.0 4.0 mV 1

= -5mA

Adj

Adjust Pin Current V

= 4.25V, I

= -5mA -10 10 µA 1

= 41.25V, I

= -5mA -10 10 µA 1

LM117K JAN Electrical Characteristics DC Parameters

Sub-

Symbol Parameter Conditions Notes Min Max Unit

group

Output Voltage V

= 4.25V, I

= -5mA 1.2 1.3 V 1, 2, 3

= 4.25V, I

= -1.5A 1.2 1.3 V 1, 2, 3

= 41.25V, I

= -5mA 1.2 1.3 V 1, 2, 3

= 41.25V, I

= -200mA 1.2 1.3 V 1, 2, 3

RLine

Line Regulation 4.25V ≤ V

≤ 41.25V, -9.0 9.0 mV 1

= -5mA

-23 23 mV 2, 3

RLoad

Load Regulation V

= 6.25V, -3.5 3.5 mV 1

-1.5A ≤ I

≤ -5mA

-12 12 mV 2, 3

= 41.25V, -3.5 3.5 mV 1

-200mA ≤ I

≤ -5mA

-12 12 mV 2, 3

Thermal Regulation V

= 14.6V, I

= -1.5A -12 12 mV 1

Adj

Adjust Pin Current V

= 4.25V, I

= -5mA -100 -15 µA 1, 2, 3

= 41.25V, I

= -5mA -100 -15 µA 1, 2, 3

ΔI

Adj

/ Line Adjust Pin Current Change 4.25V ≤ V

≤ 41.25V, -5.0 5.0 µA 1, 2, 3

= -5mA

ΔI

Adj

/ Load Adjust Pin Current Change V

= 6.25V, -5.0 5.0 µA 1, 2, 3

-1.5A ≤ I

≤ -5mA

Output Short Circuit Current V

= 4.25V -3.5 -1.5 A 1, 2, 3

= 40V -1.0 -0.18 A 1, 2, 3

Recov Output Voltage Recovery V

= 4.25V, R

= 0.833Ω, 1.2 1.3 V 1, 2, 3

= 20µF

= 40V, R

= 250Ω 1.2 1.3 V 1, 2, 3

Minimum Load Current V

= 4.25V, -3.0 -0.2 mA 1, 2, 3

Forced V

= 1.4V

= 14.25V, -3.0 -0.2 mA 1, 2, 3

Forced V

= 1.4V

= 41.25V, -5.0 -0.2 mA 1, 2, 3

Forced V

= 1.4V

Start

Voltage Start-Up V

= 4.25V, R

= 0.833Ω, 1.2 1.3 V 1, 2, 3

=20µF, I

= -1.5A

Output Voltage V

= 6.25V, I

= -5mA

(1)

1.2 1.3 V 2

(1) Tested @ T

= 125°C, correlated to T

= 150°C

Product Folder Links: LM117JAN

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