1117-18

LM1117 NSC | Alldatasheet

Document overview

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Technical content

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 June 2004 LM1117/LM1117I 800mA Low-Dropout Linear Regulator © 2004 National Semiconductor Corporation DS100919 www.national.com

Ordering Information

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 www.national.com 2

When using the LLP package Pins 2,3&4 must be connected together and Pins 5,6&7 must be connected together Top View LM1117/LM1117I www.national.com3

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 IN 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 (VIN to GND) 15V Junction Temperature Range (T J)(Note 2) LM1117 0˚C to 125˚C LM1117I −40˚C to 125˚C Typicals and limits appearing in normal type apply for T J = 25˚C. Limits appearing in Boldface type apply over the entire junc- tion temperature range for operation, 0˚C to 125˚C. Symbol Parameter Conditions Min (Note 5) Typ (Note 4) Max (Note 5) Units VREF Reference Voltage LM1117-ADJ IOUT = 10mA, VIN-VOUT = 2V, TJ = 25˚C 10mA ≤ IOUT ≤ 800mA, 1.4V ≤ VIN-VOUT ≤ 10V 1.238 1.225 1.250 1.250 1.262 1.270 V V VOUT Output Voltage LM1117-1.8 IOUT = 10mA, VIN = 3.8V, TJ = 25˚C 0 ≤ IOUT ≤ 800mA, 3.2V ≤ VIN ≤ 10V 1.782 1.746 1.800 1.800 1.818 1.854 V V LM1117-2.5 IOUT = 10mA, VIN = 4.5V, TJ = 25˚C 0 ≤ IOUT ≤ 800mA, 3.9V ≤ VIN ≤ 10V 2.475 2.450 2.500 2.500 2.525 2.550 V V LM1117-2.85 IOUT = 10mA, VIN = 4.85V, TJ = 25˚C 0 ≤ IOUT ≤ 800mA, 4.25V ≤ VIN ≤ 10V 0 ≤ IOUT ≤ 500mA, VIN = 4.10V 2.820 2.790 2.790 2.850 2.850 2.850 2.880 2.910 2.910 V V V LM1117-3.3 I OUT = 10mA, VIN =5 VT J = 25˚C 0 ≤ IOUT ≤ 800mA, 4.75V≤ VIN ≤ 10V 3.267 3.235 3.300 3.300 3.333 3.365 V V LM1117-5.0 IOUT = 10mA, VIN = 7V, TJ = 25˚C 0 ≤ IOUT ≤ 800mA, 6.5V ≤ VIN ≤ 12V 4.950 4.900 5.000 5.000 5.050 5.100 V V ∆VOUT Line Regulation (Note 6) LM1117-ADJ IOUT = 10mA, 1.5V ≤ VIN-VOUT ≤ 13.75V 0.035 0.2 % LM1117-1.8 IOUT = 0mA, 3.2V ≤ VIN ≤ 10V 1 6 mV LM1117-2.5 IOUT = 0mA, 3.9V ≤ VIN ≤ 10V 1 6 mV LM1117-2.85 IOUT = 0mA, 4.25V ≤ VIN ≤ 10V 1 6 mV LM1117-3.3 IOUT = 0mA, 4.75V ≤ VIN ≤ 15V 1 6 mV LM1117-5.0 IOUT = 0mA, 6.5V ≤ VIN ≤ 15V 1 10 mV LM1117/LM1117I www.national.com 4

Typicals and limits appearing in normal type apply for T J = 25˚C. Limits appearing in Boldface type apply over the entire junc- tion temperature range for operation, 0˚C to 125˚C. Symbol Parameter Conditions Min (Note 5) Typ (Note 4) Max (Note 5) Units ∆VOUT Load Regulation (Note 6) LM1117-ADJ VIN-VOUT = 3V, 10 ≤ IOUT ≤ 800mA 0.2 0.4 % LM1117-1.8 VIN = 3.2V, 0 ≤ IOUT ≤ 800mA 1 10 mV LM1117-2.5 VIN = 3.9V, 0 ≤ IOUT ≤ 800mA 1 10 mV LM1117-2.85 VIN = 4.25V, 0 ≤ IOUT ≤ 800mA 1 10 mV LM1117-3.3 VIN = 4.75V, 0 ≤ IOUT ≤ 800mA 1 10 mV LM1117-5.0 VIN = 6.5V, 0 ≤ IOUT ≤ 800mA 1 15 mV VIN-V OUT Dropout Voltage (Note 7) IOUT = 100mA 1.10 1.20 V IOUT = 500mA 1.15 1.25 V IOUT = 800mA 1.20 1.30 V ILIMIT Current Limit V IN-VOUT = 5V, TJ = 25˚C 800 1200 1500 mA Minimum Load Current (Note 8) LM1117-ADJ VIN = 15V 1.7 5 mA Quiescent Current LM1117-1.8 VIN ≤ 15V 5 10 mA LM1117-2.5 VIN ≤ 15V 5 10 mA LM1117-2.85 VIN ≤ 10V 5 10 mA LM1117-3.3 VIN ≤ 15V 5 10 mA LM1117-5.0 VIN ≤ 15V 5 10 mA Thermal Regulation T A = 25˚C, 30ms Pulse 0.01 0.1 %/W Ripple Regulation f RIPPLE =1 20Hz, VIN-VOUT =3 VV RIPPLE =1 VPP 60 75 dB Adjust Pin Current 60 120 µA Adjust Pin Current Change 10 ≤ IOUT≤ 800mA, 1.4V ≤ VIN-VOUT ≤ 10V 0.2 5 µA Temperature Stability 0.5 % Long Term Stability T A = 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 www.national.com5

Typicals and limits appearing in normal type apply for T J = 25˚C. Limits appearing in Boldface type apply over the entire junc- tion temperature range for operation, −40˚C to 125˚C. Symbol Parameter Conditions Min (Note 5) Typ (Note 4) Max (Note 5) Units VREF Reference Voltage LM1117I-ADJ IOUT = 10mA, VIN-VOUT = 2V, TJ = 25˚C 10mA ≤ IOUT ≤ 800mA, 1.4V ≤ VIN-VOUT ≤ 10V 1.238 1.200 1.250 1.250 1.262 1.290 V V VOUT Output Voltage LM1117I-3.3 IOUT = 10mA, VIN = 5V, TJ = 25˚C 0 ≤ IOUT ≤ 800mA, 4.75V ≤ VIN ≤ 10V 3.267 3.168 3.300 3.300 3.333 3.432 V V LM1117I-5.0 IOUT = 10mA, VIN = 7V, TJ = 25˚C 0 ≤ IOUT ≤ 800mA, 6.5V ≤ VIN ≤ 12V 4.950 4.800 5.000 5.000 5.050 5.200 V V ∆VOUT Line Regulation (Note 6) LM1117I-ADJ IOUT = 10mA, 1.5V ≤ VIN-VOUT ≤ 13.75V 0.035 0.3 % LM1117I-3.3 IOUT = 0mA, 4.75V ≤ VIN ≤ 15V 1 10 mV LM1117I-5.0 IOUT = 0mA, 6.5V ≤ VIN ≤ 15V 1 15 mV ∆VOUT Load Regulation (Note 6) LM1117I-ADJ VIN-VOUT = 3V, 10 ≤ IOUT ≤ 800mA 0.2 0.5 % LM1117I-3.3 VIN = 4.75V, 0 ≤ IOUT ≤ 800mA 1 15 mV LM1117I-5.0 VIN = 6.5V, 0 ≤ IOUT ≤ 800mA 1 20 mV VIN-V OUT Dropout Voltage (Note 7) IOUT = 100mA 1.10 1.30 V IOUT = 500mA 1.15 1.35 V IOUT = 800mA 1.20 1.40 V ILIMIT Current Limit V IN-VOUT = 5V, TJ = 25˚C 800 1200 1500 mA Minimum Load Current (Note 8) LM1117I-ADJ VIN = 15V 1.7 5 mA Quiescent Current LM1117I-3.3 VIN ≤ 15V 5 15 mA LM1117I-5.0 VIN ≤ 15V 5 15 mA Thermal Regulation T A = 25˚C, 30ms Pulse 0.01 0.1 %/W Ripple Regulation f RIPPLE =1 20Hz, VIN-VOUT =3 VV RIPPLE =1 VPP 60 75 dB Adjust Pin Current 60 120 µA Adjust Pin Current Change 10 ≤ IOUT≤ 800mA, 1.4V ≤ VIN-VOUT ≤ 10V 0.2 10 µA Temperature Stability 0.5 % Long Term Stability T A = 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 Ch aracteristics. LM1117/LM1117I www.national.com 6

Note 2: The maximum power dissipation is a function of T J(max) , θJA, and T A. The maximum allowable power dissipation at any ambient temperature is PD =( TJ(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, 1.5k Ω 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 =V OUT +1.5V. Note 8: The minimum output current required to maintain regulation. Note 9: Minimum pad size of 0.038in 2 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 www.national.com7

Typical Performance Characteristics (Continued) LM1117-ADJ Ripple Rejection vs. Current Temperature Stability 10091907 10091925 Adjust Pin Current LM1117-2.85 Load Transient Response 10091926 10091908 LM1117-5.0 Load Transient Response LM1117-2.85 Line Transient Response 10091909 10091910 LM1117/LM1117I www.national.com 8

1.0 External Capacitors/Stability

1.1 Input Bypass Capacitor

input is a suitable input bypassing for almost all applications.

1.2 Adjust Terminal Bypass Capacitor

The R1 is the resistor between the output and the adjust pin.

1.3 Output Capacitor

output capacitance (22µf tantalum) is required.

2.0 Output Voltage

REF, between the output and the adjust terminal.

3.0 Load Regulation

tion, a few precautions are needed. directly tied to the ground terminal on the negative side. FIGURE 1. Basic Adjustable Regulator

ing and improve load regulation.

4.0 Protection Diodes

the output voltage without damaging the device. can withstand microsecond surge currents of 10A to 20A.

5.0 Heatsink Requirements

FIGURE 2. Typical Application using Fixed Output FIGURE 3. Best Load Regulation using Adjustable FIGURE 4. Regulator with Protection Diode

Application Note (Continued) TABLE 1.θJA Different Heatsink Area(Continued) Layout Copper Area Thermal Resistance 14 0.284 0.284 83 61 15 0.392 0.392 75 55 16 0.5 0.5 70 53 *Tab of device attached to topside copper LM1117/LM1117I www.national.com 12

FIGURE 13. Top View of the Thermal Test Pattern in Actual Scale

FIGURE 14. Bottom View of the Thermal Test Pattern in Actual Scale

Typical Application Circuits 10091930 Adjusting Output of Fixed Regulators 10091931 Regulator with Reference 10091929 1.25V to 10V Adjustable Regulator with Improved Ripple Rejection 10091927 5V Logic Regulator with Electronic Shutdown* LM1117/LM1117I www.national.com 16

Typical Application Circuits (Continued) 10091932 Battery Backed-Up Regulated Supply 10091933 Low Dropout Negative Supply LM1117/LM1117I www.national.com17

Physical Dimensions inches (millimeters) unless otherwise noted 3-Lead SOT-223 3-Lead TO-220 LM1117/LM1117I www.national.com 18

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 3-Lead TO-263 LM1117/LM1117I www.national.com19

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 3-Lead TO-252 8-Lead LLP LM1117/LM1117I www.national.com 20

NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. National Semiconductor Americas Customer Support Center Email: new.feedback@nsc.com Tel: 1-800-272-9959 National Semiconductor Europe Customer Support Center Fax: +49 (0) 180-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Français Tel: +33 (0) 1 41 91 8790 National Semiconductor Asia Pacific Customer Support Center Email: ap.support@nsc.com National Semiconductor Japan Customer Support Center Fax: 81-3-5639-7507 Email: jpn.feedback@nsc.com Tel: 81-3-5639-7560 www.national.com LM1117/LM1117I 800mA Low-Dropout Linear Regulator National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the righ t at any time without notice to change said circuitry and specifications.