LM1117 - 800 mA Low-Dropout Linear Regulator

1 Semiconductor Components Industries, LLC, 2020 February, 2021 Rev. 11 Publication Order Number: LM1117 /D800 mA Low-Dropout LinearRegulatorLM1117, LM1117 IThe LM1117 is a low dropout voltage Regulator with a dropout V at 800 mA of load current. The LM1117 is available in anadjustable version, which can set the output voltage from V with only two external resistors. In addition, it is available infive fixed voltages, V, V, V, and 5 LM1117 offers current limiting and thermal shutdown. Itscircuit is trimmed to assure output voltage accuracy to within +/ 1%.Features Available in V, V, V, V, and adjustable Versions Space Saving SOT 223 Package Current Limiting and Thermal Protection Output Current 800 mA Line Regulation (Maximum) Load Regulation (Maximum) Temperature Range: 40 C to 125 C These are Pb-Free DevicesApplications Post Regulator for Switching DC DC Converter High Efficiency Linear regulators Battery Chargers Portable Instrumentation Active SCSI Termination Regulation10mF12 Output10mF3 InputLM1117 XTXX++Figure 1.

2 FixedOutput Regulator10mF12 Output10mF3 InputLM1117 XTA++Figure 2. AdjustableOutput Regulator22mF1210mF3LM1117XT285++110 W110 W110 W110 V+18 to 27 LinesFigure 3. Active SCSI Bus TerminatorTYPICAL 223 CASE 318 HPin: 1. Adjust/Ground2. Output3. InputHeatsink tab is connected to Pin detailed ordering and shipping information in the packagedimensions section on page 11 of this data INFORMATIONSee general marking information in the device markingsection on page 11 of this data MARKING INFORMATION123Ta bPIN CONFIGURATIONSOT 223(Top View) LM1117 , RATINGSR atingSymbolValueUnitInput voltage (Note 1)Vin20 VOutput Short Circuit Duration (Notes 2 and 3) Infinite Power Dissipation and Thermal CharacteristicsCase 318H (SOT 223)Power Dissipation (Note 2)

3 Thermal Resistance, Junction to Ambient, Minimum Size PadThermal Resistance, Junction to CasePDRqJARqJCInternally Limited16015W C/W C/WMaximum Die Junction Temperature RangeTJ 55 to 150 CStorage Temperature RangeTstg 65 to 150 COperating Ambient Temperature Range LM1117 LM1117 ITA0 to +125 40 to +125 CStresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionalityshould not be assumed, damage may occur and reliability may be This device series contains ESD protection and exceeds the following tests:Human Body Model (HBM), Class 2, 2000 VMachine Model (MM), Class B, 200 VCharge Device Model (CDM), Class IV, 2000 Internal thermal shutdown protection limits the die temperature to approximately 175 C.

4 Proper heatsinking is required to prevent maximum package power dissipation is: PD+TJ(max)*TARqJA3. The Regulator output current must not exceed A with Vin greater than 12 , CHARACTERISTICS (Cin = 10 mF, Cout = 10 mF, for typical value TA = 25 C, for min and max values TA is the operating ambient temperature range that appliesunless otherwise noted.) (Note 4)CharacteristicSymbolMinTypMaxUnitRefer ence voltage , adjustable Output Devices(Vin Vout = V, Iout = 10 mA, TA = 25 C)(Vin Vout = V to 10 V, Iout = 10 mA to 800 mA) (Note 4) voltage , Fixed Output V(Vin = V, Iout = 10 mA, TA = 25 C)(Vin = V to V, Iout = 0 mA to 800 mA) (Note 4) V(Vin = V, Iout = 10 mA, TA = 25 C)(Vin = V to 10 V, Iout = 0 mA to 800 mA,) (Note 4) V(Vin = V, Iout = 10 mA, TA = 25 C)(Vin = V to 10 V, Iout = 0 mA to 800 mA) (Note 4) V(Vin = V, Iout = 10 mA, TA = 25 C)(Vin = V to 12 V, Iout = 0 mA to 800 mA) (Note 4) Regulation (Note 5) adjustable (Vin = V to V, Iout = 10 mA)

5 Regline V (Vin = V to V, Iout = 0 mA) V (Vin = V to 10 V, Iout = 0 mA) V (Vin = V to 15 V, Iout = 0 mA) V (Vin = V to 15 V, Iout = 0 mA) Regulation (Note 5) adjustable (Iout = 10 mA to 800 mA, Vin = V)Regline V (Iout = 0 mA to 800 mA, Vin = V) V (Iout = 0 mA to 800 mA, Vin = V) V (Iout = 0 mA to 800 mA, Vin = V) V (Iout = 0 mA to 800 mA, Vin = V) voltage (Measured at Vout 100 mV)(Iout = 100 mA)(Iout = 500 mA)(Iout = 800 mA)Vin Vout Current Limit (Vin Vout = V, TA = 25 C, Note 6)Iout100015002200mAMinimum Required Load Current for Regulation, adjustable Output Devices(Vin = 15 V)IL(min) V(Vin = V) V(Vin = 10 V) V(Vin = 15 V) V(Vin = 15 V)IQ Regulation (TA = 25 C, 30 ms Pulse) Rejection (Vin Vout = V, Iout = 500 mA, 10 Vpp 120 Hz Sinewave) VRR67666260577370686461 dBAdjustment Pin Current (Vin = V, Iout = 800 mA)Iadj 52120mAAdjust Pin Current Change(Vin Vout = V to 10 V, Iout = 10 mA to 800 mA)DIadj StabilityST %Long Term Stability (TA = 25 C, 1000 Hrs End Point Measurement)St %RMS Output Noise (f = 10 Hz to 10 kHz)N %VoutProduct parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted.

6 Productperformance may not be indicated by the Electrical Characteristics if operated under different LM1117 : Tlow = 0 C,Thigh = 125 CLM1117I: Tlow = 40 C, Thigh = 125 C5. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as The Regulator output current must not exceed A with Vin greater than 12 , Vout, DROPOUT voltage (V)TA, AMBIENT TEMPERATURE ( C)Iadj, ADJUST PIN CURRENT (mA)Iout = 10 mA020406080100 Figure 4. Output voltage Changevs. TemperatureFigure 5. Dropout Voltagevs. Output CurrentFigure 6. Output Short Circuit Currentvs. Differential VoltageFigure 7. Output Short Circuit Currentvs.

7 TemperatureFigure 8. Adjust Pin Currentvs. TemperatureFigure 9. Quiescent Current Changevs. 2 4 6 8 101214 161820 Load pulsed at duty cycleVin Vout, voltage DIFFERENTIAL (V)Iout, OUTPUT CURRENT (A)TJ = 25 pulsed at duty cycleIout, OUTPUT CURRENT (mA)TJ = 40 CTJ = 25 CTJ = 125 CVout, OUTPUT voltage CHANGE (%) 50 250255075100125150TA, AMBIENT TEMPERATURE ( C)Vin = Vout + VIout = 10 mAAdj, V, V, V, V, V, V, 50 250255075100125150 20 15 10 50 250255075100125150TA, AMBIENT TEMPERATURE ( C)Iout, OUTPUT CURRENT (A)Vin = VLoad pulsed at duty cycleTA, AMBIENT TEMPERATURE ( C)IQ, QUIESCENT CURRENT CHANGE (%) 50 250255075100125150LM1117, k10 k100 k02040608010002004006008001000 Iout, OUTPUT CURRENT (mA)

8 RR, RIPPLE REJECTION (dB)fripple = 20 kHzVripple v VP PVout = VVin Vout = VCout = 10 mFCadj = 25 mF TA = 25 Cfripple, RIPPLE FREQUENCY (Hz)RR, RIPPLE REJECTION (dB)Vout = VVin Vout = VIout = ACout = 10 mFCadj = 25 mF, f > 60 HzVripple v VP P Vripple v VP PVin Vout w VFigure 10. LM1117 XTA Ripple Rejectionvs. Output CurrentFigure 11. LM1117 XTA Ripple Rejectionvs. FrequencyFigure 12. Output Capacitance vs. ESRF igure 13. Typical ESR vs. Output Currentfripple = 120 HzVripple v VP PVin Vout w VdropoutCadj = 200 mF, f v 60 HzTA = 25 , EQUIVALENT SERIES RESISTANCE (W)OUTPUT CAPACITANCE (mF)Vin = VVout = VIload = 5 mA 1 ACin = 10 mF MLCCTJ = 25 CRegion of InstabilityRegion of 1000 Iout, OUTPUT CURRENT (mA)ESR, EQUIVALENT SERIES RESISTANCE (W)Vin = VVout = VCin = 10 mF MLCCCout = 10 mFTJ = 25 CRegion of InstabilityRegion of Stability200600300700400800050E 9100E 9150E 9200E 9250E k10 k100 kFREQUENCY (Hz)V/sqrt (Hz)Cin = 10 mF TantalumCout = 10 mF TantalumVin Vout = VFigure 14.

9 Output Spectral Noise Density , Vout = 1V5300E 9350E 91 ALM1117, , TIME (ms) VOLTAGEDEVIATION (mV)INPUTVOLTAGE (V)20020 Figure 15. LM1117XT285 Line Transient ResponseFigure 16. LM1117XT285 Load Transient ResponseFigure 17. LM1117XT50 Line Transient ResponseFigure 18. LM1117XT50 Load Transient ResponseCin = 10 mFCout = 10 mFVin = VPreload = ATA = 25 Ct, TIME (ms) CURRENTCHANGE (A)OUTPUT VOLTAGEDEVIATION (V)200 Cin = 10 mFCout = 10 mFVin = VPreload = ATA = 25 Ct, TIME (ms) CURRENTCHANGE (A)OUTPUT VOLTAGEDEVIATION (V)200t, TIME (ms) VOLTAGEDEVIATION (mV)INPUTVOLTAGE (V)200 Cin = mFCout = 10 mFIout = ATA = 25 C20 Cin = mFCout = 10 mFIout = ATA = 25 CFigure 19.

10 LM1117XT12 LineTransient ResponseFigure 20. LM1117XT12 LoadTransient Responset, TIME (ms)Cin = 10 mFCout = 10 mFVin = VPreload = ATA = 25 CURRENTCHANGE (A)OUTPUT VOLTAGEDEVIATION (V)t, TIME (ms) VOLTAGEDEVIATION (mV)INPUTVOLTAGE (V)20020 Cin = mFCout = 10 mFIout = ATA = 25 CLM1117, , LENGTH OF COPPER (mm)PD(max) for TA = 50 , LENGTH OF COPPER (mm) 21. SOT 223 Thermal Resistance and MaximumPower Dissipation vs. Copper LengthRqJA, THERMAL RESISTANCE,JUNCTION TO AIR ( CW)PD, MAXIMUM POWER DISSIPATION (W)RqJA, THERMAL RESISTANCE,JUNCTION TO AIR ( CW) 22. DPAK Thermal Resistance and MaximumPower Dissipation vs. Copper LengthMinimumSize PadPD, MAXIMUM POWER DISSIPATION (W)L oz.