UTC LD1117/A LINEAR INTEGRATED CIRCUIT LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS 3 2 1 SOT-223 DESCRIPTION The UTC LD1117/A is a LOW DROP Voltage Regulator able to provide up to 0.8/1.0A of Output Current, available even in adjustable version (Vref=1.25V). Concerning fixed versions, are offered the following Output Voltages: 1.8V, 2.5V, 2.85V, 3.0V, 3.3V and 5.0V. The 2.85V type is ideal for SCSI-2 lines active termination. The device is supplied in: SOT-223, TO-252, TO-263, TO-263-3, SOP-8 and TO-220. The SOT-223, TO-263, TO-263-3 and TO-252 surface mount packages optimize the thermal characteristics even offering a relevant space saving effect. High efficiency is assured by NPN pass transistor. In fact in the case, unlike than PNP one, the Quiescent Current flows mostly into the load. Only a very common 10µF minimum capacitor is needed for stability. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ±1% at 25°C. The ADJUSTABLE LD1117/A is pin to pin compatible with the other standard Adjustable voltage regulators maintaining the better performances in terms of Drop and Tolerance. SOP-8 1 1 TO-220 TO-252 1 1 TO-263 SOP-8 1: GND; 4: Vin; TO-263-3 2,3,6,7: Vout; 5,8: NC FEATURES *Low dropout voltage (1V Typ.) *2.85V device performances are suitable for SCSI-2 active termination *Output current up to 0.8/1.0A *Fixed output voltage of: 1.8V,2.5V, 2,85V, 3.0V, 3.3V, 5.0V *Adjustable version availability (Vref=1.25V) *Internal current and thermal limit *Available in ±1%(at 25°C) and 2% in all temperature range *Supply voltage rejection: 75dB (TYP) *Temperature range: 0°C to 125°C UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R102-006,H UTC LD1117/A LINEAR INTEGRATED CIRCUIT MARKING INFORMATION PACKAGE VOLTAGE PIN CODE PIN 1 PIN 2 PIN 3 MARKING CODE 18:1.8V 25:2.5V SOT-223 28:2.85V 30:3.0V 33:3.3V 50:5.0V AD:ADJ TO-220 TO-252 TO-263 TO-263-3 A GND OUT IN B OUT GND IN CURRENT CODE VOLTAGE CODE C GND IN OUT D IN GND OUT A GND OUT IN B OUT GND IN C GND IN OUT D IN GND OUT LD1117 PIN CODE DATE CODE 1 2 3 UTC LD1117 CURRENT CODE PIN CODE VOLTAGE CODE DATE CODE 1 2 3 Note: The current code “A” means output current up to 1.0A, while without “A” means output current up to 0.8A. UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R102-006,H UTC LD1117/A LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL VALUE UNIT DC Input Voltage VIN 15 V Power Dissipation Ptot 12 W Storage temperature Tstg -65 ~ +150 °C Operating Junction Top 0 ~ +125 °C Temperature Note: Absolute Maximum Ratings are those value beyond which damage to the device may occur. Functional operation under there condition is not implied. Over the above suggested Max Power Dissipation a Short Circuit could definitively damage the device. THERMAL DATA PARAMETER SYMBOL Thermal Resistance Junction-case SOT-223 SOP-8 TO-252 TO-220 TO-263 Thermal Resistance Junction-ambient TO-220 Rth-case UTC VALUE UNIT 15 20 8 3 3 °C/W °C/W °C/W °C/W °C/W 50 °C/W Rthj-amb UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R102-006,H UTC LD1117/A LINEAR INTEGRATED CIRCUIT APPLICATION CIRCUIT LD1117/A UTC LD1117/A-1.8 ELECTRICAL CHARACTERISTICS (refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified) PARAMETER SYMBOL Output Voltage Output Voltage Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Output Current Output Noise Voltage Supply Voltage Rejection Dropout Voltage Vo Vo ∆Vo ∆Vo ∆Vo ∆Vo Vin Id Io eN SVR Vd Thermal Regulation TEST CONDITIONS Vin=3.8V, Io=10mA, Tj=25°C Io=0 to 800/1000mA, Vin=3.3 to 8V Vin=3.3 to 8V, Io=0mA Vin=3.3V, Io=0 to 800/1000mA 1000 hrs, Tj=125°C Io=100mA Vin≤8V Vin=6.8V, Tj=25°C B=10Hz to 10KHz, Tj=25°C Io=40mA, f=120Hz, Tj=25°C, Vin=5.5V, Vripple=1Vpp Io=100mA Io=500mA Io=800mA Io=1000mA Ta=25°C, 30ms Pulse MIN. TYP. MAX. UNIT 1.780 1.760 1.800 1.820 1.840 6 10 V V mV mV % % V mA mA µV dB 1 1 0.5 0.3 800 60 5 950 100 75 10 10 1200 1.00 1.05 1.10 1.15 0.01 1.10 1.15 1.20 1.25 0.10 V V V V %/W MIN. TYP. MAX. UNIT 2.475 2.450 2.450 2.400 2.500 2.500 2.525 2.550 2.550 2.600 6 10 V V V V mV mV % % V mA mA UTC LD1117/A-2.5 ELECTRICAL CHARACTERISTICS (refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS Output Voltage Vo Vin=4.5V, Io=10mA, Tj=25°C Output Voltage Vo Io=0 to 800/1000mA, Vin=3.9 to 10V Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Output Current UTC ∆Vo ∆Vo ∆Vo ∆Vo Vin Id Io ±1% ±2% ±2% ±4% Vin=3.9 to 10V, Io=0mA Vin=3.9V, Io=0 to 800/1000mA 1000 hrs, Tj=125°C Io=100mA Vin≤10V Vin=7.5V, Tj=25°C 1 1 0.5 0.3 800 5 950 15 10 1200 UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R102-006,H UTC LD1117/A LINEAR INTEGRATED CIRCUIT PARAMETER SYMBOL Output Noise Voltage Supply Voltage Rejection Dropout Voltage eN SVR Vd Thermal Regulation TEST CONDITIONS B=10Hz to 10KHz, Tj=25°C Io=40mA, f=120Hz, Tj=25°C, Vin=5.5V, Vripple=1Vpp Io=100mA Io=500mA Io=800mA Io=1000mA Ta=25°C, 30ms Pulse MIN. TYP. 60 100 75 MAX. UNIT µV dB 1.00 1.05 1.10 1.15 0.01 1.10 1.15 1.20 1.25 0.10 V V V V %/W MIN. TYP. MAX. UNIT 2.82 2.79 2.85 2.88 2.91 6 10 V V mV mV % % V mA mA µV DB UTC LD1117/A-2.85 ELECTRICAL CHARACTERISTICS (refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified) PARAMETER SYMBOL Output Voltage Output Voltage Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Output Current Output Noise Voltage Supply Voltage Rejection Dropout Voltage Vo Vo ∆Vo ∆Vo ∆Vo ∆Vo Vin Id Io eN SVR Vd Thermal Regulation TEST CONDITIONS Vin=4.85V, Io=10mA, Tj=25°C Io=0 to 800/1000mA,Vin=4.25 to 10V Vin=4.25 to 10V, Io=0mA Vin=4.25V, Io=0 to 800/1000mA 1000 hrs, Tj=125°C Io=100mA Vin≤10V Vin=7.85V, Tj=25°C B=10Hz to 10KHz, Tj=25°C Io=40mA, f=120Hz, Tj=25°C, Vin=5.85V, Vripple=1Vpp Io=100mA Io=500mA Io=800mA Io=1000mA Ta=25°C, 30ms Pulse 1 1 0.5 0.3 800 60 5 950 100 75 15 10 1200 1.00 1.05 1.10 1.15 0.01 1.10 1.15 1.20 1.25 0.10 V V V V %/W MIN. TYP. MAX. UNIT 2.97 2.94 2.94 2.88 3.00 3.00 3.03 3.06 3.06 3.12 6 10 V V V V mV mV % % V mA mA µV dB UTC LD1117/A-3.0 ELECTRICAL CHARACTERISTICS (refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS Output Voltage Vo Vin=5V, Io=10mA, Tj=25°C Output Voltage Vo Io=0 to 800/1000mA, Vin=4.5 to 10V Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Output Current Output Noise Voltage Supply Voltage Rejection UTC ∆Vo ∆Vo ∆Vo ∆Vo Vin Id Io eN SVR ±1% ±2% ±2% ±4% Vin=4.5 to 12V, Io=0mA Vin=4.5V, Io=0 to 800/1000mA 1000 hrs, Tj=125°C Io=100mA Vin≤12V Vin=8V, Tj=25°C B=10Hz to 10KHz, Tj=25°C Io=40mA, f=120Hz, Tj=25°C, Vin=6V, Vripple=1Vpp 1 1 0.5 0.3 800 60 5 950 100 75 15 10 1200 UNISONIC TECHNOLOGIES CO., LTD. 5 QW-R102-006,H UTC LD1117/A LINEAR INTEGRATED CIRCUIT PARAMETER SYMBOL Dropout Voltage Vd Thermal Regulation TEST CONDITIONS MIN. TYP. MAX. UNIT 1.00 1.05 1.10 1.15 0.01 1.10 1.15 1.20 1.25 0.10 V V V V %/W MIN. TYP. MAX. UNIT 3.267 3.235 3.235 3.160 3.300 3.300 3.333 3.365 3.365 3.440 6 10 V V V V mV mV % % V mA mA µV DB Io=100mA Io=500mA Io=800mA Io=1000mA Ta=25°C, 30ms Pulse UTC LD1117/A-3.3 ELECTRICAL CHARACTERISTICS (refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS Output Voltage Vo Vin=5.3V, Io=10mA, Tj=25°C Output Voltage Vo Io=0 to 800/1000mA, Vin=4.75 to 10V Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Output Current Output Noise Voltage Supply Voltage Rejection Dropout Voltage ∆Vo ∆Vo ∆Vo ∆Vo Vin Id Io eN SVR Vd Thermal Regulation ±1% ±2% ±2% ±4% Vin=4.75 to 15V, Io=0mA Vin=4.75V, Io=0 to 800/1000mA 1000 hrs, Tj=125°C Io=100mA Vin≤15V Vin=8.3V, Tj=25°C B=10Hz to 10KHz, Tj=25°C Io=40mA, f=120Hz, Tj=25°C, Vin=6.3V, Vripple=1Vpp Io=100mA Io=500mA Io=800mA Io=1000mA Ta=25°C, 30ms Pulse 1 1 0.5 0.3 800 60 5 950 100 75 15 10 1200 1.00 1.05 1.10 1.15 0.01 1.10 1.15 1.20 1.25 0.10 V V V V %/W MIN. TYP. MAX. UNIT 4.95 4.90 4.90 4.80 5.00 5.00 5.05 5.10 5.10 5.20 10 15 V V V V mV mV % % V mA mA µV dB UTC LD1117/A-5.0 ELECTRICAL CHARACTERISTICS (refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS Output Voltage Vo Vin=7V, Io=10mA, Tj=25°C Output Voltage Vo Io=0 to 800/1000mA, Vin=6.5 to 15V Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Output Current Output Noise Voltage Supply Voltage Rejection UTC ∆Vo ∆Vo ∆Vo ∆Vo Vin Id Io eN SVR ±1% ±2% ±2% ±4% Vin=6.5 to 15V, Io=0mA Vin=6.5V, Io=0 to 800/1000mA 1000 hrs, Tj=125°C Io=100mA Vin≤15V Vin=10V, Tj=25°C B=10Hz to 10KHz, Tj=25°C Io=40mA, f=120Hz, Tj=25°C, Vin=8V, Vripple=1Vpp 1 1 0.5 0.3 800 60 5 950 100 75 15 10 1200 UNISONIC TECHNOLOGIES CO., LTD. 6 QW-R102-006,H UTC LD1117/A LINEAR INTEGRATED CIRCUIT PARAMETER SYMBOL Dropout Voltage Vd Thermal Regulation TEST CONDITIONS MIN. Io=100mA Io=500mA Io=800mA Io=1000mA Ta=25°C, 30ms Pulse TYP. MAX. UNIT 1.00 1.05 1.10 1.15 0.01 1.10 1.15 1.20 1.25 0.10 V V V V %/W UTC LD1117/A-ADJUSTABLE ELECTRICAL CHARACTERISTICS (refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified) PARAMETER SYMBOL Reference Voltage Reference Voltage Vref Vref Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Adjustment Pin Current Adjustment Pin Current Change Minimum Load Current Output Current Output Noise (%Vo) Supply Voltage Rejection Dropout Voltage ∆Vo ∆Vo ∆Vo ∆Vo Vin Iadj ∆Iadj Io(min) Io eN SVR Vd Thermal Regulation TEST CONDITIONS Vin-VO=2V, Io=10mA, Tj=25°C Io=10 to 800/1000mA, Vin-Vo=1.4 to 10V Vin-Vo=1.5 to 13.75V, Io=10mA Vin-Vo=3V, Io=10 to 800/1000mA MIN. TYP. MAX. UNIT 1.238 1.225 1.25 1.262 1.275 V V 0.035 0.10 0.50 0.3 0.200 0.400 % % % % V µA µA 1000 hrs, Tj=125°C Vin≤15V Vin-Vo=1.4 to 10V, Io=10 to 800/1000mA Vin=15V Vin-Vo=5V, Tj=25°C B=10Hz to 10KHz, Tj=25°C Io=40mA, f=120Hz, Tj=25°C, Vin-Vo=3V, Vripple=1Vpp Io=100mA Io=500mA Io=800mA Io=1000mA Ta=25°C, 30ms Pulse 60 1 800 60 15 120 5 2 950 0.003 75 5 1200 mA mA % dB 1.00 1.05 1.10 1.15 0.01 1.10 1.15 1.20 1.25 0.10 V V V V %/W TYPICAL APPLICATIONS FIG.1 Negative Supply UTC UNISONIC TECHNOLOGIES CO., LTD. 7 QW-R102-006,H UTC LD1117/A LINEAR INTEGRATED CIRCUIT FIG.2 Active Terminator for SCSI-2 BUS FIG.3 Circuit for Increasing Output Voltage UTC UNISONIC TECHNOLOGIES CO., LTD. 8 QW-R102-006,H UTC LD1117/A LINEAR INTEGRATED CIRCUIT FIG.4 Voltage Regulator With Reference FIG.5 Battery Backed-up Regulated Supply UTC UNISONIC TECHNOLOGIES CO., LTD. 9 QW-R102-006,H UTC LD1117/A LINEAR INTEGRATED CIRCUIT FEEDBACK PATH FIG.6 Post-Regulated Dual Supply UTC UNISONIC TECHNOLOGIES CO., LTD. 10 QW-R102-006,H UTC LD1117/A LINEAR INTEGRATED CIRCUIT LD1117/A ADJUSTABLE APPLICATION NOTE The LD1117/A ADJUSTABLE has a thermal stabilized 1.25±0.012V reference voltage between the OUT and ADJ pins. IADJ is 60µA typ. (120µA max.) and ∆IADJ is 1µA typ. (5µA max.). R1 is normally fixed to 120Ω. From figure 7 we obtain: VOUT=VREF+R2(IADJ + IR1)=VREF + R2(IADJ + VREF / R1)=VREF(1+R2/R1) + R2 x IADJ. In normal application R2 value is in the range of few Kohm,, so the R2 X IADJ product could not be considered in the VOUT calculation; then the above expression becomes: VOUT=VREF(1+R2/R1) In order to have the better load regulation it is important to realize a good Kelvin connection of R1 and R2 resistors. In particular R1 connection must be realized very close to OUT and ADJ pin, while R2 ground connection must be placed as near as possible to the negative Load pin. Ripple rejection can be improved by introducing a 10µF electrolytic capacitor placed in parallel to the R2 resistor (See Fig. 8) FIG.7 Adjustable Output Voltage Application Circuit FIG.8 Adjustable Output Voltage Application with improved Ripple Rejection. UTC UNISONIC TECHNOLOGIES CO., LTD. 11 QW-R102-006,H UTC LD1117/A LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS Fig.2 Output Voltage vs. Temperautre Fig.1 Reference Voltge vs. Temperature 3.70 1.245 3.65 1.240 3.60 Output Voltage(V) reference voltage (V) 1.250 1.235 1.230 1.225 1.220 1.215 3.50 3.45 3.40 3.35 3.30 1.205 3.25 1.200 -75 -50 -25 3.20 0 25 50 75 100 125 150 175 Vout=3.6V 3.55 1.210 Junction Temperature(°C) VOUT SET WITH 1% RESISTORS -75 Vout=3.3V Note: LD1117 Only -50 -25 0 25 50 75 100 125 150 175 Junction Temperature(°C) Fig.3 Maximum Power Dissipation 10 8 Power (W) TO-263 & TO-252 6 4 SOT-223 2 0 25 45 65 85 105 125 Case Temperature(°C) UTC UNISONIC TECHNOLOGIES CO., LTD. 12 QW-R102-006,H