Datasheet

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LM1117-N, LM1117I

www.ti.com

SNOS412M –FEBRUARY 2000–REVISED MARCH 2013

LM1117-N/LM1117I 800mA Low-Dropout Linear Regulator

Check for Samples: LM1117-N, LM1117I

FEATURES

DESCRIPTION

The LM1117-N is a series of low dropout voltage

• Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and

regulators with a dropout of 1.2V at 800mA of load

Adjustable Versions

current. It has the same pin-out as Texas

• Space Saving SOT-223 and WSON Packages

Instruments' industry standard LM317.

• Current Limiting and Thermal Protection

The LM1117-N is available in an adjustable version,

• Output Current 800mA

which can set the output voltage from 1.25V to 13.8V

with only two external resistors. In addition, it is also

• Line Regulation 0.2% (Max)

available in five fixed voltages, 1.8V, 2.5V, 2.85V,

• Load Regulation 0.4% (Max)

3.3V, and 5V.

• Temperature Range

The LM1117-N offers current limiting and thermal

– LM1117-N: 0°C to 125°C

shutdown. Its circuit includes a zener trimmed

– LM1117I: −40°C to 125°C

bandgap reference to assure output voltage accuracy

to within ±1%.

APPLICATIONS

The LM1117-N series is available in WSON, PFM,

• 2.85V Model for SCSI-2 Active Termination

SOT-223, TO-220, and TO-263 DDPAK packages. A

minimum of 10µF tantalum capacitor is required at

• Post Regulator for Switching DC/DC Converter

the output to improve the transient response and

• High Efficiency Linear Regulators

stability.

• Battery Charger

• Battery Powered Instrumentation

TYPICAL APPLICATION

Active Terminator for SCSI-2 Bus

Figure 1. Fixed Output Regulator

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 (32 pages)

PAGE 1
LM1117-N, LM1117I www.ti.com SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 LM1117-N/LM1117I 800mA Low-Dropout Linear Regulator Check for Samples: LM1117-N, LM1117I FEATURES DESCRIPTION • The LM1117-N 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 Texas Instruments' industry standard LM317. 1 2 • • • • • • Available in 1.8V, 2.5V, 2.85V, 3.
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LM1117-N, LM1117I SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 www.ti.com Block Diagram Connection Diagrams Figure 2. SOT-223 Top View Figure 3. TO-220 Top View Figure 4. PFM Top View Figure 5.
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LM1117-N, LM1117I www.ti.com SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 Figure 6. DDPAK/TO-263 Side View ADJ/GND 1 VIN 2 8 NOT CONNECTED 7 VOUT VOUT VIN 3 6 VOUT VIN 4 5 VOUT When using the WSON package Pins 2, 3 & 4 must be connected together and Pins 5, 6 & 7 must be connected together Figure 7. WSON Top View These devices have limited built-in ESD protection.
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LM1117-N, LM1117I SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 www.ti.com LM1117-N 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 VREF VOUT ΔVOUT ΔVOUT Min (1) Typ (2) Max (1) Units LM1117-N-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 LM1117-N-1.
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LM1117-N, LM1117I www.ti.com SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 LM1117-N 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 ILIMIT Parameter Conditions Min (1) Typ (2) Max (1) Units 800 1200 1500 mA Current Limit VIN-VOUT = 5V, TJ = 25°C Minimum Load Current (5) LM1117-N-ADJ VIN = 15V 1.
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LM1117-N, LM1117I SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 www.ti.com LM1117I 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, −40°C to 125°C. Symbol ΔVOUT ΔVOUT VIN-V OUT ILIMIT Parameter Line Regulation (3) Load Regulation (3) Dropout Voltage (4) Conditions Min (1) LM1117I-ADJ IOUT = 10mA, 1.5V ≤ VIN-VOUT ≤ 13.75V 0.
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LM1117-N, LM1117I www.ti.com SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 TYPICAL PERFORMANCE CHARACTERISTICS Dropout Voltage (VIN-V OUT) Short-Circuit Current Figure 8. Figure 9. Load Regulation LM1117-N-ADJ Ripple Rejection Figure 10. Figure 11. LM1117-N-ADJ Ripple Rejection vs. Current Temperature Stability Figure 12. Figure 13.
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LM1117-N, LM1117I SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) Adjust Pin Current LM1117-N-2.85 Load Transient Response Figure 14. Figure 15. LM1117-N-5.0 Load Transient Response LM1117-N-2.85 Line Transient Response Figure 16. Figure 17. LM1117-N-5.0 Line Transient Response Figure 18.
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LM1117-N, LM1117I www.ti.com SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 APPLICATION INFORMATION EXTERNAL CAPACITORS/STABILITY Input Bypass Capacitor An input capacitor is recommended. A 10µF tantalum on the input is a suitable input bypassing for almost all applications. Adjust Terminal Bypass Capacitor The adjust terminal can be bypassed to ground with a bypass capacitor (CADJ) to improve ripple rejection. This bypass capacitor prevents ripple from being amplified as the output voltage is increased.
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LM1117-N, LM1117I SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 www.ti.com Figure 20. Typical Application using Fixed Output Regulator When the adjustable regulator is used (Figure 21), the best performance is obtained with the positive side of the resistor R1 tied directly to the output terminal of the regulator rather than near the load. This eliminates line drops from appearing effectively in series with the reference and degrading regulation. For example, a 5V regulator with 0.
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LM1117-N, LM1117I www.ti.com SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 Figure 22. Regulator with Protection Diode HEATSINK REQUIREMENTS When an integrated circuit operates with an appreciable current, its junction temperature is elevated. It is important to quantify its thermal limits in order to achieve acceptable performance and reliability.
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LM1117-N, LM1117I SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 www.ti.com PD = (VIN-VOUT)I L + VINIG (3) Figure 24 shows the voltages and currents which are present in the circuit. Figure 24.
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LM1117-N, LM1117I www.ti.com SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 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 Figure 25. θJA vs. 1oz Copper Area for SOT-223 Figure 26. θJA vs. 2oz Copper Area for PFM Figure 27. Maximum Allowable Power Dissipation vs.
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LM1117-N, LM1117I SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 www.ti.com Figure 28. Maximum Allowable Power Dissipation vs. Ambient Temperature for PFM Figure 29. Maximum Allowable Power Dissipation vs. 1oz Copper Area for SOT-223 Figure 30. Maximum Allowable Power Dissipation vs.
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LM1117-N, LM1117I www.ti.com SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 Figure 31. Top View of the Thermal Test Pattern in Actual Scale Figure 32.
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LM1117-N, LM1117I SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 www.ti.com TYPICAL APPLICATION CIRCUITS Figure 33. Adjusting Output of Fixed Regulators Figure 34. Regulator with Reference Figure 35. 1.25V to 10V Adjustable Regulator with Improved Ripple Rejection Figure 36.
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LM1117-N, LM1117I www.ti.com SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 Figure 37. Battery Backed-Up Regulated Supply Figure 38.
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LM1117-N, LM1117I SNOS412M – FEBRUARY 2000 – REVISED MARCH 2013 www.ti.com REVISION HISTORY Changes from Revision L (March 2013) to Revision M • 18 Page Changed layout of National Data Sheet to TI format ..........................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.com 12-Jun-2014 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking (4/5) LM1117DT-1.8/NOPB ACTIVE TO-252 NDP 3 75 Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEAR 0 to 125 LM1117 DT-1.8 LM1117DT-2.5/NOPB ACTIVE TO-252 NDP 3 75 Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEAR 0 to 125 LM1117 DT-2.5 LM1117DT-3.
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PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 12-Jun-2014 Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking (4/5) LM1117IMP-3.3/NOPB ACTIVE SOT-223 DCY 4 1000 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 N05B LM1117IMP-5.
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PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 12-Jun-2014 Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking (4/5) LM1117MP-ADJ/NOPB ACTIVE SOT-223 DCY 4 1000 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM 0 to 125 N03A LM1117MPX-1.8/NOPB ACTIVE SOT-223 DCY 4 2000 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM 0 to 125 N12A LM1117MPX-2.
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PACKAGE OPTION ADDENDUM www.ti.com 12-Jun-2014 OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined.
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PACKAGE MATERIALS INFORMATION www.ti.com 19-Oct-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant LM1117DTX-1.8/NOPB TO-252 NDP 3 2500 330.0 16.4 6.9 10.5 2.7 8.0 16.0 Q2 LM1117DTX-2.5/NOPB TO-252 NDP 3 2500 330.0 16.4 6.9 10.5 2.7 8.0 16.0 Q2 LM1117DTX-3.3/NOPB TO-252 NDP 3 2500 330.0 16.4 6.9 10.5 2.7 8.0 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 19-Oct-2013 Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant LM1117LD-2.5/NOPB WSON NGN 8 1000 178.0 12.4 4.3 4.3 1.3 8.0 12.0 Q1 LM1117LD-3.3/NOPB WSON NGN 8 1000 178.0 12.4 4.3 4.3 1.3 8.0 12.0 Q1 LM1117LD-ADJ/NOPB WSON NGN 8 1000 178.0 12.4 4.3 4.3 1.3 8.0 12.0 Q1 LM1117LDX-1.8 WSON NGN 8 4500 330.0 12.4 4.3 4.3 1.3 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 19-Oct-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LM1117DTX-1.8/NOPB TO-252 NDP 3 2500 367.0 367.0 38.0 LM1117DTX-2.5/NOPB TO-252 NDP 3 2500 367.0 367.0 38.0 LM1117DTX-3.3/NOPB TO-252 NDP 3 2500 367.0 367.0 38.0 LM1117DTX-5.0/NOPB TO-252 NDP 3 2500 367.0 367.0 38.0 LM1117DTX-ADJ/NOPB TO-252 NDP 3 2500 367.0 367.0 38.0 LM1117IDTX-3.
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PACKAGE MATERIALS INFORMATION www.ti.com 19-Oct-2013 Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LM1117LD-ADJ/NOPB WSON NGN 8 1000 213.0 191.0 55.0 LM1117LDX-1.8 WSON NGN 8 4500 367.0 367.0 35.0 LM1117LDX-1.8/NOPB WSON NGN 8 4500 367.0 367.0 35.0 LM1117LDX-ADJ/NOPB WSON NGN 8 4500 367.0 367.0 35.0 LM1117MP-1.8/NOPB SOT-223 DCY 4 1000 367.0 367.0 35.0 LM1117MP-2.5/NOPB SOT-223 DCY 4 1000 367.0 367.0 35.0 LM1117MP-3.
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MECHANICAL DATA NDE0003B www.ti.
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MECHANICAL DATA NDP0003B TD03B (Rev F) www.ti.
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MECHANICAL DATA MPDS094A – APRIL 2001 – REVISED JUNE 2002 DCY (R-PDSO-G4) PLASTIC SMALL-OUTLINE 6,70 (0.264) 6,30 (0.248) 3,10 (0.122) 2,90 (0.114) 4 0,10 (0.004) M 3,70 (0.146) 3,30 (0.130) 7,30 (0.287) 6,70 (0.264) Gauge Plane 1 2 0,84 (0.033) 0,66 (0.026) 2,30 (0.091) 4,60 (0.181) 1,80 (0.071) MAX 3 0°–10° 0,10 (0.004) M 0,25 (0.010) 0,75 (0.030) MIN 1,70 (0.067) 1,50 (0.059) 0,35 (0.014) 0,23 (0.009) Seating Plane 0,08 (0.003) 0,10 (0.0040) 0,02 (0.0008) 4202506/B 06/2002 NOTES: A. B.
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MECHANICAL DATA NGN0008A LDC08A (Rev B) www.ti.
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MECHANICAL DATA KTT0003B TS3B (Rev F) BOTTOM SIDE OF PACKAGE 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.