NSC LM1117SX-2.85, LM1117S-ADJ, LM1117S-5.0, LM1117S-3.3, LM1117T-ADJ Datasheet

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LM1117/LM1117I 800mA Low-Dropout Linear Regulator

General Description

The LM1117 is a series of low dropout voltage regulators with a dropout of 1.2V at 800mA of load current. It has the same pin-out as National Semiconductor’s industry standard LM317.

The LM1117 is available in an adjustable version, which can set the output voltage from 1.25V to 13.8V with only two external resistors. In addition, it is also available in five fixed voltages, 1.8V, 2.5V, 2.85V, 3.3V, and 5V.

The LM1117 offers current limiting and thermal shutdown. Its circuit includes a zener trimmed bandgap reference to assure output voltage accuracy to within

1%.

The LM1117 series is available in LLP, TO-263, SOT-223, TO-220, and TO-252 D-PAK packages. A minimum of 10µF tantalum capacitor is required at the output to improve the transient response and stability.

Features

n Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable

Versions

n Space Saving SOT-223 and LLP Packages n Current Limiting and Thermal Protection n Output Current 800mA n Line Regulation 0.2% (Max) n Load Regulation 0.4% (Max) n Temperature Range

— LM1117 0˚C to 125˚C — LM1117I −40˚C to 125˚C

Applications

n 2.85V Model for SCSI-2 Active Termination n Post Regulator for Switching DC/DC Converter n High Efficiency Linear Regulators n Battery Charger n Battery Powered Instrumentation

Typical Application

Active Terminator for SCSI-2 Bus

10091905

Fixed Output Regulator

10091928

October 2002

LM1117/LM1117I 800mA Low-Dropout Linear Regulator

Ordering Information

Package Temperature

Range

Part Number Packaging Marking Transport Media NSC

Drawing

3-lead SOT-223

0˚C to +125˚C LM1117MPX-ADJ N03A Tape and Reel MP04A

LM1117MPX-1.8 N12A Tape and Reel

LM1117MPX-2.5 N13A Tape and Reel

LM1117MPX-2.85 N04A Tape and Reel

LM1117MPX-3.3 N05A Tape and Reel

LM1117MPX-5.0 N06A Tape and Reel

−40˚C to +125˚C LM1117IMPX-ADJ N03B Tape and Reel

LM1117IMPX-3.3 N05B Tape and Reel

LM1117IMPX-5.0 N06B Tape and Reel

3-lead TO-220 0˚C to +125˚C LM1117T-ADJ LM1117T-ADJ Rails T03B

LM1117T-1.8 LM1117T-1.8 Rails

LM1117T-2.5 LM1117T-2.5 Rails

LM1117T-2.85 LM1117T-2.85 Rails

LM1117T-3.3 LM1117T-3.3 Rails

LM1117T-5.0 LM1117T-5.0 Rails

3-lead TO-252 0˚C to +125˚C LM1117DTX-ADJ LM1117DT-ADJ Tape and Reel TD03B

LM1117DTX-1.8 LM1117DT-1.8 Tape and Reel

LM1117DTX-2.5 LM1117DT-2.5 Tape and Reel

LM1117DTX-2.85 LM1117DT-2.85 Tape and Reel

LM1117DTX-3.3 LM1117DT-3.3 Tape and Reel

LM1117DTX-5.0 LM1117DT-5.0 Tape and Reel

−40˚C to +125˚C LM1117IDTX-ADJ LM1117IDT-ADJ Tape and Reel

LM1117IDTX-3.3 LM1117IDT-3.3 Tape and Reel

LM1117IDTX-5.0 LM1117IDT-5.0 Tape and Reel

8-lead LLP 0˚C to +125˚C LM1117LDX-ADJ 1117ADJ Tape and Reel LDC08A

LM1117LDX-1.8 1117-18 Tape and Reel

LM1117LDX-2.5 1117-25 Tape and Reel

LM1117LDX-2.85 1117-28 Tape and Reel

LM1117LDX-3.3 1117-33 Tape and Reel

LM1117LDX-5.0 1117-50 Tape and Reel

−40˚C to 125˚C LM1117ILDX-ADJ 1117IAD Tape and Reel

LM1117ILDX-3.3 1117I33 Tape and Reel

LM1117ILDX-5.0 1117I50 Tape and Reel

TO-263 0˚C to +125˚C LM1117SX-ADJ LM1117SADJ Tape and Reel TS3B

LM1117SX-2.85 LM1117S2.85 Tape and Reel

LM1117SX-3.3 LM1117S3.3 Tape and Reel

LM1117SX-5.0 LM1117S5.0 Tape and Reel

LM1117/LM1117I

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Block Diagram

10091901

Connection Diagrams

SOT-223

10091904

Top View

TO-220

10091902

Top View

TO-252

10091938

Top View

TO-263

10091944

Top View

10091945

Side View

LLP

10091946

When using the LLP package

Pins 2,3&4must be connected together and

Pins 5,6&7must be connected together

Top View

LM1117/LM1117I

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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.

Maximum Input Voltage (V

to GND) 20V

Power Dissipation (Note 2) Internally Limited

Junction Temperature (T

)

(Note 2)

150˚C

Storage Temperature Range -65˚C to 150˚C

Lead Temperature

TO-220 (T) Package 260˚C, 10 sec

SOT-223 (IMP) Package 260˚C, 4 sec

ESD Tolerance (Note 3) 2000V

Operating Ratings (Note 1)

Input Voltage (V

to GND) 15V

Junction Temperature Range (T

)(Note 2)

LM1117 0˚C to 125˚C

LM1117I −40˚C to 125˚C

LM1117 Electrical Characteristics

Typicals and limits appearing in normal type apply for TJ= 25˚C. Limits appearing in Boldface type apply over the entire junction temperature range for operation, 0˚C to 125˚C.

Symbol Parameter Conditions

Min

(Note 5)

Typ

(Note 4)

Max

(Note 5)

Units

REF

Reference Voltage LM1117-ADJ

OUT

= 10mA, VIN-V

OUT

= 2V, TJ= 25˚C

10mA ≤ I

OUT

≤ 800mA, 1.4V ≤ VIN-V

OUT

≤ 10V

1.238

1.225

1.250

1.262

1.270

V V

OUT

Output Voltage LM1117-1.8

OUT

= 10mA, VIN= 3.8V, TJ= 25˚C

0 ≤ I

OUT

≤ 800mA, 3.2V ≤ VIN≤ 10V

1.782

1.746

1.800

1.818

1.854

V V

LM1117-2.5 I

OUT

= 10mA, VIN= 4.5V, TJ= 25˚C

0 ≤ I

OUT

≤ 800mA, 3.9V ≤ VIN≤ 10V

2.475

2.450

2.500

2.525

2.550

V V

LM1117-2.85 I

OUT

= 10mA, VIN= 4.85V, TJ= 25˚C

0 ≤ I

OUT

≤ 800mA, 4.25V ≤ VIN≤ 10V

0 ≤ I

OUT

≤ 500mA, VIN= 4.10V

2.820

2.790

2.850

2.880

2.910

V V V

LM1117-3.3 I

OUT

= 10mA, VIN=5VTJ= 25˚C

0 ≤ I

OUT

≤ 800mA, 4.75V≤ VIN≤ 10V

3.267

3.235

3.300

3.333

3.365

V V

LM1117-5.0 I

OUT

= 10mA, VIN= 7V, TJ= 25˚C

0 ≤ I

OUT

≤ 800mA, 6.5V ≤ VIN≤ 12V

4.950

4.900

5.000

5.050

5.100

V V

∆V

OUT

Line Regulation (Note 6)

LM1117-ADJ I

OUT

= 10mA, 1.5V ≤ VIN-V

OUT

≤ 13.75V 0.035 0.2 %

LM1117-1.8 I

OUT

= 0mA, 3.2V ≤ VIN≤ 10V

1 6 mV

LM1117-2.5 I

OUT

= 0mA, 3.9V ≤ VIN≤ 10V

1 6 mV

LM1117-2.85 I

OUT

= 0mA, 4.25V ≤ VIN≤ 10V 1 6 mV

LM1117-3.3 I

OUT

= 0mA, 4.75V ≤ VIN≤ 15V 1 6 mV

LM1117-5.0 I

OUT

= 0mA, 6.5V ≤ VIN≤ 15V 1 10 mV

LM1117/LM1117I

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LM1117 Electrical Characteristics (Continued)

Typicals and limits appearing in normal type apply for TJ= 25˚C. Limits appearing in Boldface type apply over the entire junction temperature range for operation, 0˚C to 125˚C.

Symbol Parameter Conditions

Min

(Note 5)

Typ

(Note 4)

Max

(Note 5)

Units

∆V

OUT

Load Regulation (Note 6)

LM1117-ADJ V

IN-VOUT

= 3V, 10 ≤ I

OUT

≤ 800mA 0.2 0.4 %

LM1117-1.8 V

= 3.2V, 0 ≤ I

OUT

≤ 800mA

1 10 mV

LM1117-2.5 VIN= 3.9V, 0 ≤ I

OUT

≤ 800mA

1 10 mV

LM1117-2.85 V

= 4.25V, 0 ≤ I

OUT

≤ 800mA 1 10 mV

LM1117-3.3 VIN= 4.75V, 0 ≤ I

OUT

≤ 800mA 1 10 mV

LM1117-5.0 V

= 6.5V, 0 ≤ I

OUT

≤ 800mA 1 15 mV

IN-VOUT

Dropout Voltage (Note 7)

OUT

= 100mA 1.10 1.20 V

OUT

= 500mA 1.15 1.25 V

OUT

= 800mA 1.20 1.30 V

LIMIT

Current Limit VIN-V

OUT

= 5V, TJ= 25˚C 800 1200 1500 mA

Minimum Load Current (Note 8)

LM1117-ADJ V

= 15V 1.7 5 mA

Quiescent Current LM1117-1.8

VIN≤ 15V

5 10 mA

LM1117-2.5 V

≤ 15V

5 10 mA

LM1117-2.85 V

≤ 10V 5 10 mA

LM1117-3.3 VIN≤ 15V 5 10 mA

LM1117-5.0 V

≤ 15V 5 10 mA

Thermal Regulation T

= 25˚C, 30ms Pulse 0.01 0.1 %/W

Ripple Regulation f

RIPPLE

=1 20Hz, VIN-V

OUT

=3VV

RIPPLE

=1V

60 75 dB

Adjust Pin Current 60 120 µA

Adjust Pin Current Change

10 ≤ I

OUT

≤ 800mA,

1.4V ≤ V

IN-VOUT

≤ 10V 0.2 5 µA

Temperature Stability 0.5 %

Long Term Stability T

= 125˚C, 1000Hrs 0.3 %

RMS Output Noise (% of V

OUT

), 10Hz ≤ f ≤10kHz 0.003 %

Thermal Resistance Junction-to-Case

3-Lead SOT-223 15.0 ˚C/W

3-Lead TO-220 3.0 ˚C/W

3-Lead TO-252 10 ˚C/W

Thermal Resistance Junction-to-Ambient (No air flow)

3-Lead SOT-223 (No heat sink) 136 ˚C/W

3-Lead TO-220 (No heat sink) 79 ˚C/W

3-Lead TO-252 (Note 9) (No heat sink) 92 ˚C/W

3-Lead TO-263 55 ˚C/W

8-Lead LLP(Note 10) 40 ˚C/W

LM1117/LM1117I

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LM1117I Electrical Characteristics

Typicals and limits appearing in normal type apply for TJ= 25˚C. Limits appearing in Boldface type apply over the entire junction temperature range for operation, −40˚C to 125˚C.

Symbol Parameter Conditions

Min

(Note 5)

Typ

(Note 4)

Max

(Note 5)

Units

REF

Reference Voltage LM1117I-ADJ

OUT

= 10mA, VIN-V

OUT

= 2V, TJ= 25˚C

10mA ≤ I

OUT

≤ 800mA, 1.4V ≤ VIN-V

OUT

≤ 10V

1.238

1.200

1.250

1.262

1.290

V V

OUT

Output Voltage LM1117I-3.3

OUT

= 10mA, VIN= 5V, TJ= 25˚C

0 ≤ I

OUT

≤ 800mA, 4.75V ≤ VIN≤ 10V

3.267

3.168

3.300

3.333

3.432

V V

LM1117I-5.0 I

OUT

= 10mA, VIN= 7V, TJ= 25˚C

0 ≤ I

OUT

≤ 800mA, 6.5V ≤ VIN≤ 12V

4.950

4.800

5.000

5.050

5.200

V V

∆V

OUT

Line Regulation (Note 6)

LM1117I-ADJ I

OUT

= 10mA, 1.5V ≤ VIN-V

OUT

≤ 13.75V 0.035 0.3 %

LM1117I-3.3 I

OUT

= 0mA, 4.75V ≤ VIN≤ 15V 1 10 mV

LM1117I-5.0 I

OUT

= 0mA, 6.5V ≤ VIN≤ 15V 1 15 mV

∆V

OUT

Load Regulation (Note 6)

LM1117I-ADJ V

IN-VOUT

= 3V, 10 ≤ I

OUT

≤ 800mA 0.2 0.5 %

LM1117I-3.3 V

= 4.75V, 0 ≤ I

OUT

≤ 800mA 1 15 mV

LM1117I-5.0 V

= 6.5V, 0 ≤ I

OUT

≤ 800mA 1 20 mV

IN-VOUT

Dropout Voltage (Note 7)

OUT

= 100mA 1.10 1.30 V

OUT

= 500mA 1.15 1.35 V

OUT

= 800mA 1.20 1.40 V

LIMIT

Current Limit VIN-V

OUT

= 5V, TJ= 25˚C 800 1200 1500 mA

Minimum Load Current (Note 8)

LM1117I-ADJ V

= 15V 1.7 5 mA

Quiescent Current LM1117I-3.3

VIN≤ 15V 5 15 mA

LM1117I-5.0 V

≤ 15V 5 15 mA

Thermal Regulation T

= 25˚C, 30ms Pulse 0.01 0.1 %/W

Ripple Regulation f

RIPPLE

=1 20Hz, VIN-V

OUT

=3VV

RIPPLE

=1V

60 75 dB

Adjust Pin Current 60 120 µA

Adjust Pin Current Change

10 ≤ I

OUT

≤ 800mA,

1.4V ≤ V

IN-VOUT

≤ 10V 0.2 10 µA

Temperature Stability 0.5 %

Long Term Stability T

= 125˚C, 1000Hrs 0.3 %

RMS Output Noise (% of V

OUT

), 10Hz ≤ f ≤10kHz 0.003 %

Thermal Resistance Junction-to-Case

3-Lead SOT-223 15.0 ˚C/W

3-Lead TO-252 10 ˚C/W

Thermal Resistance Junction-to-Ambient No air flow)

3-Lead SOT-223 (No heat sink) 136 ˚C/W

3-Lead TO-252 (No heat sink)(Note 9) 92 ˚C/W

8-Lead LLP(Note 10) 40 ˚C/W

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 specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.

LM1117/LM1117I

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Note 2: The maximum power dissipation is a function of T

J(max)

, θJA, and TA. The maximum allowable power dissipation at any ambient temperature is

=(T

J(max)–TA

)/θJA. All numbers apply for packages soldered directly into a PC board.

Note 3: For testing purposes, ESD was applied using human body model, 1.5kΩ in series with 100pF.

Note 4: Typical Values represent the most likely parametric norm.

Note 5: All limits are guaranteed by testing or statistical analysis.

Note 6: Load and line regulation are measured at constant junction room temperature.

Note 7: The dropout voltage is the input/output differential at which the circuit ceases to regulate against further reduction in input voltage. It is measured when the

output voltage has dropped 100mV from the nominal value obtained at V

IN=VOUT

+1.5V.

Note 8: The minimum output current required to maintain regulation.

Note 9: Minimum pad size of 0.038in

Note 10: Thermal Performance for the LLP was obtained using JESD51-7 board with six vias and an ambient temperature of 22˚C. For information about improved thermal performance and power dissipation for the LLP, refer to Application Note AN-1187.

Typical Performance Characteristics

Dropout Voltage (VIN-V

OUT

) Short-Circuit Current

10091922 10091923

Load Regulation LM1117-ADJ Ripple Rejection

10091943

10091906

LM1117/LM1117I

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