1A L.D.O. VOLTAGE REGULATOR LM1117S/RS/F SOT-223 PKG FEATURES ● Output Current up to 1 A ● Low Dropout Voltage ( 1.2V at 1A Output Current ) ● Three Terminal Adjustable(ADJ) or Fixed 1.2V,1.5V, 1.8V, 2.5V, 2.85V, 3.3V, 5.0V ● Line Regulaion typically at 0.1% max ● Load Regulaion typically at 0.2% max ● Internal Current and Terminal Protection ● Maximum Input Voltage - 15V ● Surface Mount Package SOT-223, TO-252, SOT-89 ● 100% Thermal Limit Burn-In TO-252 PKG SOT-89 PKG 1 2 3 Pin 1. Adjust/Ground 2. Output 3. Input APPLICATION ORDERING INFORMATION ● ● ● ● ● ● ● Device (Marking) Package LM1117S-ADJ SOT-223 LM1117S-XX LM1117RS-ADJ TO-252 LM1117RS-XX LM1117F-ADJ SOT-89 LM1117F-XX ( X.X=Output Voltage=1.2V,1.5V, 1.8V, 2.5V, '3.3V, 5.0V, Adjustable=ADJ) Active SCSI Terminators Portable/Plan Top/Notebook Computers High Efficiency Linear Regulators SMPS Post Regulators Mother B/D Clock Supplies Disk Drives Battery Chargers DESCRIPTION The LM1117 is a low power positive-voltage regulator designed to meet 1A output current and comply with SCSI-II specifications with a fixed output voltage of 2.85V. This device is an excellent choice for use in battery-powered applications, as active terminators for the SCSI bus, and portable computers. The LM1117 features very low quiescent current and very low dropout voltage of 1V at a full load and lower as output current decreases. LM1117 is available as an adjustable or fixed 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V output voltages. The LM1117 is offered in a 3-pin surface mount package SOT-223, TO-252 & SOT-89. The output capacitor of 10㎌ or larger is needed for output stability of LM1117 as required by most of the other regulator circuits. HTC Jan. 2007 - Rev 1.0 1 1A L.D.O. VOLTAGE REGULATOR LM1117S/RS/F ABSOLUTE MAXIMUM RATINGS SYMBOL VIN MIN. TSOL TSTG TOPR MAX. 15 260 -65 -40 150 125 SYMBOL SOT-223 TO-252 SOT-89 RθJA 130 93 315 CHARACTERISTIC DC Input Voltage Lead Temperature (Soldering, 5 Seconds) Storage Temperature Range Operating Junction Temperature Range UNIT V ℃ ℃ ℃ THERMAL DATA PARAMETER Thermal Resistance Junction-Ambient UNIT ℃/W TYPICAL APPLICATION FIXED OUTPUT VOLTAGE LM1117S/RS/F VIN 10㎌ 10㎌ Tantalum Tantalum HTC Jan. 2007 - Rev 1.0 2 1A L.D.O. VOLTAGE REGULATOR LM1117S/RS/F ELECTRICAL CHARACTERISTICS FOR LM1117S/RS/F-ADJ(ADJUSTABLE) (Refer to the test circuits, TJ=25℃ CO=10㎌ unless otherwise specified) PARAMETER SYMBOL VREF TEST CONDITION MIN. TYP. MAX. UNIT IO = 10mA to 1A, VIN - VO = 1.5 to 13.75V 1.238 1.25 1.262 V Reference Voltage (TJ=0~125℃) VREF IO = 10mA to 1A, VIN - VO = 1.5 to 13.75V 1.219 1.281 V Line Regulation ΔVO IO = 10mA , VIN - VO = 1.5 to 13.75V 0.1 0.2 % Load Regulation ΔVO IO = 10mA to 1A, VIN - VO = 2 V 0.2 0.4 Temperature Stability Long Term Stability Operating Input Voltage Adjustment Pin Current Adjustment Pin Current Change Minimum Load Current Current Limit Output Noise (%VO) ΔVO Reference Voltage Supply Voltage Rejection Dropout Voltage ΔVO VIN IADJ 0.5 1000 hrs, T J = 125℃ % % 0.3 % 15 V VIN - VO = 1.5 to 12V IO = 100㎃ 50 120 ㎂ ΔIADJ VIN - VO = 1.5 to 12V, I O = 10mA to 1A 0.5 5 ㎂ IO(MIN) VIN - VO = 12V 5 10 ㎃ IO VIN - VO = 5V 1250 1600 ㎃ EN B = 10㎐ to 10㎑, TJ = 25℃ SVR VD 1000 IO = 40㎃ , f = 120㎐, TJ = 25℃ VIN - V O = 3V, V NIPPLE = 1V PP 60 % 75 ㏈ IO = 100㎃ 1.0 1.1 V IO = 500㎃ 1.1 1.2 V IO = 1A 1.2 1.3 V TA = 25℃ 30㎳ Pulse Thermal Regulation 0.003 %/W 0.003 ELECTRICAL CHARACTERISTICS FOR LM1117S/RS/F-1.2V (Refer to the test circuits, TJ=25℃ CO=10㎌ unless otherwise specified) PARAMETER Output Voltage SYMBOL VO TEST CONDITION VIN = 3.2 I O = 0㎃ to 1A Output Voltage VO Line Regulation ΔVO IO = 10mA , VIN - VO = 1.5 to 13.75V Load Regulation ΔVO IO = 10mA to 1A, VIN - VO = 2 V Temperature Stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise (%VO) ΔVO Supply Voltage Rejection Dropout Voltage ΔVO VIN=2.5 to 12V, I O=0㎃ to 1A (Tj = 0~125℃) UNIT 1.224 V 1.152 1.248 V 0.1 0.2 % 0.2 0.4 % % VIN - Vo = 5V VIN - VO = 5V EN B = 10㎐ to 10㎑, TJ = 25℃ 0.3 % 15 1000 IO = 40㎃ , f = 120㎐, TJ = 25℃ VIN - V O = 3V, V NIPPLE = 1V PP 60 V 5 10 ㎃ 1250 1600 ㎃ 0.003 % 75 ㏈ IO = 100㎃ 1.0 1.1 V IO = 500㎃ 1.1 1.2 V 1.2 1.3 IO = 1A Thermal Regulation MAX. 1.20 1000 hrs, T J = 125℃ IO VD TYP. 0.5 VIN ID SVR MIN. 1.176 TA = 25℃ 30㎳ Pulse 0.003 V %/W HTC Jan. 2007 - Rev 1.0 3 1A L.D.O. VOLTAGE REGULATOR ELECTRICAL CHARACTERISTICS FOR LM1117 LM1117S/RS/F S/RS/F- 1.5 (Refer to the test circuits, TJ=25℃ CO=10㎌ unless otherwise specified) PARAMETER Output Voltage SYMBOL VO Output Voltage VO TEST CONDITION VIN = 3.0 to 12V, I O = 0㎃ to 1A VIN=3.0 to 12V, I O=0㎃ to 1A (Tj = 0~125℃) MIN. TYP. MAX. 1.485 1.5 1.515 V 1.530 V 1.470 UNIT Line Regulation ΔVO VIN = 3.0 to 12V, I O = 0㎃ 0.1 0.2 % Load Regulation ΔVO VIN = 3.5V, I O = 0 to 1A 0.2 0.4 % Temperature Stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage ΔVO Supply Voltage Rejection SVR Dropout Voltage ΔVO 1000 hrs, T J = 125℃ VIN ID IO IO = 100㎃ VIN - Vo = 5V EN B = 10㎐ to 10㎑, TJ = 25℃ VD VIN - Vo = 5V 1000 IO = 40㎃ , f = 120㎐, TJ = 25℃ VIN = 5.5V, V NIPPLE = 1V PP 60 % 0.3 % 5 12 10 1250 1600 V ㎃ ㎃ 100 ㎶ 75 ㏈ IO = 100㎃ 1.0 1.1 V IO = 500㎃ 1.1 1.2 V IO = 1A 1.2 1.3 V TA = 25℃ 30㎳ Pulse Thermal Regulation 0.5 ELECTRICAL CHARACTERISTICS FOR LM1117 0.003 %/W S/RS/F- 1.8 (Refer to the test circuits, TJ=25℃ CO=10㎌ unless otherwise specified) PARAMETER Output Voltage SYMBOL VO Output Voltage VO Line Regulation ΔVO VIN = 3.3 to 12V, I O = 10㎃ 0.1 0.2 ㎷ Load Regulation ΔVO VIN = 3.8V, I O = 0 to 1A 0.2 0.4 ㎷ Temperature Stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage ΔVO Supply Voltage Rejection Dropout Voltage ΔVO TEST CONDITION VIN = 3.3 to 12V, I O = 0㎃ to 1A VIN=3.3 to 12V, I O=0㎃ to 1A (Tj = 0~125℃) UNIT 1.782 1.8 1.818 V 1.836 V 1.764 % % 0.3 12 ID VIN - Vo = 5V IO VIN - Vo = 5V EN B = 10㎐ to 10㎑, TJ = 25℃ 1000 IO = 40㎃ , f = 120㎐, TJ = 25℃ VIN = 5.5V, V NIPPLE = 1V PP 60 V 5 10 ㎃ 1250 1600 ㎃ 100 ㎶ 75 ㏈ IO = 100㎃ 1.0 1.1 V IO = 500㎃ 1.1 1.2 V 1.2 1.3 IO = 1A Thermal Regulation MAX. 1000 hrs, T J = 125℃ IO = 100㎃ VD TYP. 0.5 VIN SVR MIN. TA = 25℃ 30㎳ Pulse 0.003 V %/W HTC Jan. 2007 - Rev 1.0 4 1A L.D.O. VOLTAGE REGULATOR ELECTRICAL CHARACTERISTICS FOR LM1117 LM1117S/RS/F S/RS/F -2.5 (Refer to the test circuits, TJ=25℃ CO=10㎌ unless otherwise specified) PARAMETER Output Voltage SYMBOL VO Output Voltage VO Line Regulation ΔVO VIN = 4.0 to 12V, I O = 10㎃ 0.1 0.2 % Load Regulation ΔVO VIN = 4.5V, I O = 0 to 1A 0.2 0.4 % Temperature Stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage ΔVO Supply Voltage Rejection SVR Dropout Voltage ΔVO TEST CONDITION VIN = 4.0 to 12V, I O = 0㎃ to 1A VIN=4.0 to 12V, I O=0㎃ to 1A (Tj = 0~125℃) IO = 100㎃ ID VIN - Vo = 5V IO VIN - Vo = 5V EN B = 10㎐ to 10㎑, TJ = 25℃ Thermal Regulation TYP. MAX. UNIT 2.475 2.5 2.525 V 2.550 V 2.450 1000 hrs, T J = 125℃ VIN VD MIN. 1000 IO = 40㎃ , f = 120㎐, TJ = 25℃ VIN = 5.5V, V NIPPLE = 1V PP 60 0.5 % 0.3 % 5 12 10 V ㎃ 1250 1600 ㎃ 100 ㎶ 75 ㏈ IO = 100㎃ 1.0 1.1 V IO = 500㎃ 1.1 1.2 V IO = 1A 1.2 1.3 V TA = 25℃ 30㎳ Pulse 0.01 0.1 %/W ELECTRICAL CHARACTERISTICS FOR LM1117 S/RS/F -2.85 (Refer to the test circuits, TJ=25℃ CO=10㎌ unless otherwise specified) PARAMETER Output Voltage SYMBOL VO TEST CONDITION VIN = 4.4 to 12V, I O = 0㎃ to 1A MIN. TYP. MAX. UNIT 2.821 2.85 2.878 V Output Voltage VO 2.907 V Line Regulation ΔVO VIN = 4.4 to 12V, I O = 10㎃ 0.1 0.2 % Load Regulation ΔVO VIN = 4.85V, I O = 0 to 1A 0.2 0.4 Temperature Stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage ΔVO Supply Voltage Rejection Dropout Voltage ΔVO VIN ID IO EN SVR VD VIN=4.4 to 12V, I O=0㎃ to 1A (Tj = 0~125℃) 0.5 1000 hrs, T J = 125℃ % 12 VIN - Vo = 5V 1000 B = 10㎐ to 10㎑, TJ = 25℃ IO = 40㎃ , f = 120㎐, TJ = 25℃ VIN = 5.85V, V NIPPLE = 1V PP 60 % % 0.3 IO = 100㎃ VIN - Vo = 5V 5 10 V ㎃ 1250 1600 ㎃ 100 ㎶ 75 ㏈ IO = 100㎃ 1.0 1.1 V IO = 500㎃ 1.1 1.2 V 1.2 1.3 IO = 1A Thermal Regulation 2.793 TA = 25℃ 30㎳ Pulse 0.003 V %/W HTC Jan. 2007 - Rev 1.0 5 1A L.D.O. VOLTAGE REGULATOR ELECTRICAL CHARACTERISTICS FOR LM1117 LM1117S/RS/F S/RS/F -3.3 (Refer to the test circuits, TJ=25℃ CO=10㎌ unless otherwise specified) PARAMETER Output Voltage SYMBOL VO TEST CONDITION VIN = 4.8 to 12V, I O = 0㎃ to 1A MIN. TYP. MAX. UNIT 3.267 3.3 3.333 V Output Voltage VO 3.366 V Line Regulation ΔVO VIN = 4.8 to 12V, I O = 10㎃ 0.1 0.2 % Load Regulation ΔVO VIN = 5.3V, I O = 0 to 1A 0.2 0.4 % Temperature Stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage ΔVO Supply Voltage Rejection Dropout Voltage ΔVO VIN=4.8 to 12V, I O=0㎃ to 1A (Tj = 0~125℃) 0.5 1000 hrs, T J = 125℃ VIN ID IO = 100㎃ VIN - Vo = 5V IO VIN - Vo = 5V EN B = 10㎐ to 10㎑, TJ = 25℃ SVR VD 3.234 0.3 1000 IO = 40㎃ , f = 120㎐, TJ = 25℃ VIN = 6.3V, V NIPPLE = 1V PP 60 % 12 V 5 10 ㎃ 1250 1600 ㎃ 100 ㎶ 75 ㏈ IO = 100㎃ 1.0 1.1 V IO = 500㎃ 1.1 1.2 V 1.2 1.3 IO = 1A TA = 25℃ 30㎳ Pulse Thermal Regulation % ELECTRICAL CHARACTERISTICS FOR LM1117 0.003 V %/W S/RS/F -5.0 (Refer to the test circuits, TJ=25℃ CO=10㎌ unless otherwise specified) PARAMETER TEST CONDITION MIN. TYP. MAX. UNIT 4.950 5.0 5.050 V 5.100 V % Output Voltage SYMBOL VO Output Voltage VO Line Regulation ΔVO VIN = 6.5 to 15V, I O = 10㎃ 0.1 0.2 Load Regulation ΔVO VIN = 7.0V, I O = 0 to 1A 0.2 0.4 Temperature Stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage ΔVO Supply Voltage Rejection Dropout Voltage Thermal Regulation ΔVO VIN VIN = 6.5 to 15V, I O = 0㎃ to 1A VIN=6.5 to 15V, I O=0㎃ to 1A (Tj = 0~125℃) 0.5 1000 hrs, T J = 125℃ VIN - Vo = 5V IO VIN - Vo = 5V EN B = 10㎐ to 10㎑, TJ = 25℃ VD 1000 IO = 40㎃ , f = 120㎐, TJ = 25℃ VIN = 6.3V, V NIPPLE = 1V PP 60 % % 0.3 IO = 100㎃ ID SVR 4.900 % 15 V 5 10 ㎃ 1250 1600 ㎃ 100 ㎶ 75 ㏈ IO = 100㎃ 1.0 1.1 V IO = 500㎃ 1.1 1.2 V 1.2 0.003 1.3 V %/W IO = 1A TA = 25℃ 30㎳ Pulse Jan. 2007 - Rev 1.0 6 HTC 1A L.D.O. VOLTAGE REGULATOR LM1117S/RS/F APPLICATION CIRCUITS Figure 1. Figure 2. VIN IN C1 LM1117 VIN LM1117 IN OUT VOUT OUT C1 ADJ C2 ADJ IADJ 50㎂ R1 LOAD VREF VOUT=VREF(1+R2/R1)+IADJR2 1A Current Output R1 R2 Typical Adjustable Regulator Figure 3. Negative Supply LM1117S-50 IN OUT GND VIN + + 100㎌ 10㎌ VOUT=-5V FLOATING INPUT HTC Jan. 2007 - Rev 1.0 7 1A L.D.O. VOLTAGE REGULATOR LM1117S/RS/F Figure 4. Active Terminator for SCSI-2 BUS 110 110 LM1117S-28 IN (2.85V) GND + 4.75V TO 5.25V 18-27 LINES 110 + 22㎌ 110 10㎌ Figure 5. Voltage Regulator With Reference VIN>11.5V + LM1117S-50 IN OUT GND 10㎌ 10V + 100㎌ 5VOUT HTC Jan. 2007 - Rev 1.0 8 1A L.D.O. VOLTAGE REGULATOR LM1117S/RS/F Figure 6. Battery Backed-up Regulated Supply VIN LM1117S-50 IN OUT GND + 10㎌ 5.2V LINE 5.0 BATTERY 50Ω SELECT FOR CHARGE VALUE LM1117S-50 IN OUT GND + 6.5V 10㎌ + 100㎌ * NOTES : IF ANYTHING WILL BE CHANGED FOR THIS SPECIFICATION, TAEJIN TECHNOLOGY MUST INFORM PCC BEFORE THE CHANGE HTC Jan. 2007 - Rev 1.0 9 1A L.D.O. VOLTAGE REGULATOR LM1117S/RS/F Typical Performance Characteristics 1.6 Vin=Vout +3.0V Iout=10mA 1.5 Vin-Vout, DROPOUT VOLTAGE (V) Vout, OUTPUT VOLTAGE CHANGE(%) 2.0 1.0 Adj,1.5V,1.8V,2.5V 0.5 5.0V 0 -0.5 -1.0 1.4 1.2 1.0 Tj = 25℃ 0.8 Tj = 125℃ 0.6 0.4 0.2 -1.5 0 -2.0 -50 -25 -0 25 50 75 100 TA-FREE-AIR TEMPERATURE-℃ 125 0 150 100 300 200 400 500 600 Iout, OUTPUT CURRENT(mA) 2.0 1000 1.8 Tj = 25℃ Iout, OUTPUT CURRENT(A) 1.7 1.5 1.0 0.5 Vin=Vout +3.0V Iout=10mA 1.6 1.5 1.4 1.3 1.2 Vin = 5.0 V Load pulsed at 1.0% duty cycle 1.1 0 1.0 0 2 6 4 8 10 12 1 16 18 -50 20 -25 Vin - Vout, VOLTAGE DIFFERENTIAL (V) -0 25 50 75 100 TA- AMBIENT TEMPERATURE (℃) 125 150 125 150 FIG 4. OUTPUT SHORT CIRCUIT CURRENT FIG 3. OUTPUT SHORT CIRCUIT CURRENT vs TEMPERATURE IQ, QUIESCENT CURRENT CHANGE (% vs DIFFERENTIAL VOLTAGE Iadj, ADJUST PIN CURRENT 800 FIG 2. DROPOUT VOLTAGE vs OUTPUT CURRENT FIG 1. OUTPUT VOLTAGE CHANGE vs TEMPERATURE(℃) Iout, OUTPUT CURRENT(A) Tj = -40℃ Iout = 10 mA 60 50 40 20 15 10 5 0 -5 -10 -15 -20 10 -50 -25 -0 25 50 75 100 125 -50 150 -25 -0 25 50 75 100 TA, AMBIENT TEMPERATURE(℃) TA, AMBIENT TEMPERATURE (℃) FIG 6. QUIESCENT CURRENT CHANGE vs TEMPERATURE FIG 5. ADJ PIN CURRENT vs TEMPERATURE (℃) (℃) HTC Jan. 2007 - Rev 1.0 10 1A L.D.O. VOLTAGE REGULATOR LM1117S/RS/F Maximum Output Current Capability The LM1117 can deliver a continuous current of 1A over the full operating junction temperature range. However, the current is limited by the restriction of power dissipation which differs from packages. A heat sink may be required depending on the maximum power dissipation and maximum ambient temperature of application. With respect to th applied package, the maximum output current of 1A may be still undeliverable due to the restriction of the power diss of LM1117. Under all possible conditions, the junction temperature must be within the range specified under operating conditions. The temperatures over the device are given by: TC = T A + PD X θCA TJ = T C + PD X θJC TJ = T A + PD X θJA TJ is the junction temperature, T C is the case temperature, TA is the ambient temperature, P D is the total power dissi of the device, θCA is the thermal resistance of case-to-ambient, θJC is the thermal resistance of junction-to-case, and θJA is the thermal resistance of junction to ambient. The total power dissipation of the device is given by PD = PIN – POUT = (VIN X IIN)–(VOUT X IOUT) = (VIN X (IOUT+IGND)) – (VOUT X IOUT) = (VIN - VOUT) X IOUT + VIN X IGND where IGND is the operating ground current of the device which is specified at the Electrical Characteristics. The max allowable temperature rise (TRmax) depends on the maximum ambient temperature (TAmax) of the application and the maximum allowable junction temperature (TJmax): TRmax = T Jmax – TAmax The maximum allowable value for junction-to-ambient thermal resistance, θ JA, can be calculated using the formula: θJA = T Rmax / PD LM1117 is available in SOT223, TO252 packages. The thermal resistance depends on amount of copper area or he and on air flow. If the maximum allowable value of θJA calculated above is over 130°C/W for SO-223 package, over for TO252 package, no heat sink is needed since the package can dissipate enough heat to satisfy these requirements. If the value for allowable θJA falls near or below these limits, a heat sink or proper area of cop plane is required. In summary, the absolute maximum ratings of thermal resistances are as follow: Absolute Maximum Ratings of Thermal Resistance Characteristic Symbol Thermal Resistance Junction-To-Ambient / SOT223 θJA-SOT223 Thermal Resistance Junction-To-Ambient / TO252 θJA-TO252 Thermal Resistance Junction-To-Ambient / SOT89 θJA-SOT89 2 No heat sink / No air flow / No adjacent heat source / 0.066 inch copper area Max. Rating 130 93 315 Unit °C/W °C/W °C/W HTC Jan. 2007 - Rev 1.0 11