UNISONIC TECHNOLOGIES CO., LTD LOW DROP FIXED AND ADJUSTABLE POSITIE OLTAGE REGULATORS DESCRIPTION The UTC is a low dropout, 3-terminal positive voltage regulator designed to provide output current up to 800/1A, There are adjustable version ( REF =1.25) and various fixed versions. FEATURES * Low dropout voltage * Suitable for SCSI-2 active termination if OUT set to 2.85 * Output current up to 0.8A for 1117 and 1.0A for 1117A * Built-in current limit and over temperature protection * Available in ±1%(at 25 C) and 2% in all temperature range * Low current consumption * Support MLCC ORDERING INFORMATION Ordering Number Package Lead Free Halogen Free Pin Assignment LD1117 L-xx-AA3- - LD1117 G-xx-AA3- - SOT-223 LD1117 L-xx-AB3- - LD1117 G-xx-AB3- - SOT-89 Pin Code 1 2 3 LD1117 L-xx-TA3- - LD1117 G-xx-TA3- - TO-220 A G O I LD1117 L-xx-TF3- - LD1117 G-xx-TF3- - TO-220F B O G I LD1117 L-xx-TN3- - LD1117 G-xx-TN3- - TO-252 C G I O LD1117 L-xx-TQ2- - LD1117 G-xx-TQ2- - TO-263 D I G O LD1117 L-xx-TQ3- - LD1117 G-xx-TQ3- - TO-263-3 LD1117 L-xx-S08- - LD1117 G-xx-S08- - SOP-8 GOOIxOOx Note: Pin Assignment: I: IN O: G:GND/ADJ Packing R: Tape Reel T: Tube 1 of 15 Copyright 2011 Unisonic Technologies Co., Ltd
MARKING INFORMATION PACKAGE OLTAGE CODE MARKING SOT-89 SOT-223 TO-220 TO-220F TO-252 TO-263 TO-263-3 12 :1.2 15 :1.5 18 :1.8 25 :2.5 2J :2.85 30 :3.0 33 :3.3 36 :3.6 50 :5.0 AD :ADJ Note: Current code: Blank: 0.8A A: 1A PIN CONFIGURATION of SOP-8 GND/ ADJ 1 8 NC 2 7 3 6 IN 4 5 NC UNISONIC TECHNOLOGIES CO., LTD 2 of 15
BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD 3 of 15
ABSOLUTE MAXIMUM RATINGS (T A =25 C) PARAMETER SYMBOL RATINGS UNIT DC Input oltage IN 18 Power Dissipation P D Internally limited Junction Temperature T J +150 C Storage temperature T STG -65 ~ +150 C Note Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. RECOMMENDED OPERATING RATINGS PARAMETER SYMBOL RATINGS UNIT Input oltage IN 15 Operating Junction Temperature Range T J 0 ~ +125 C THERMAL DATA PARAMETER SYMBOL RATINGS UNIT SOT-223 165 C/W SOT-89 180 C/W Junction to Ambient SOP-8 150 C/W θ JA TO-252 112 C/W TO-220 54 C/W TO-263 64 C/W Junction to Case SOT-223 θ JC 15 C/W SOT-89 50 C/W SOP-8 20 C/W TO-252 12 C/W TO-220 4 C/W TO-263 4 C/W UNISONIC TECHNOLOGIES CO., LTD 4 of 15
ELECTRICAL CHARACTERISTICS (T A =25 C, refer to the test circuits, T J =0 to 125 C, C O =10μF unless otherwise specified) For -1.2 PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT IN =3.2, I OUT =10, T J =25 C 1.176 1.200 1.224 IN =2.7 to 8 LD1117 : I OUT =10~800 1.176 1.200 1.224 LD1117A : I OUT =10~1000 Line Regulation Δ IN =2.7 to 8, I OUT =10 1 6 m IN =2.7 Δ LD1117 : I OUT =10~800 LD1117A : I OUT =10~1000 Temperature stability Δ 0.5 % Long Term Stability Δ 1000 hrs, T J =125 C 0.3 % Quiescent Current I Q IN 10 5 10 Current Limit I LIMIT IN =6.2, T J =25 C Minimum Load Current I O(MIN) IN =15 2 5 Output Noise oltage en B=10Hz to 10KHz, T J =25 C 100 μ I OUT =40, f=120hz, T J =25 C, IN =4.2, RIPPLE =1 PP I OUT =100 1.00 1.10 I OUT =500 1.15 1.25 I OUT =800 1.20 1.30 For -1.5 PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT IN =3.5, I OUT =10, T J =25 C 1.470 1.500 1.530 IN =3 to 8 LD1117 : I OUT =0~800 1.470 1.500 1.530 LD1117A : I OUT =0~1000 Line Regulation Δ IN =3 to 8, I OUT =0 1 6 m Δ IN =3 LD1117 : I OUT =0~800 LD1117A : I OUT =0~1000 Temperature stability Δ 0.5 % Long Term Stability Δ 1000 hrs, T J =125 C 0.3 % Quiescent Current I Q IN 10 5 10 Current Limit I LIMIT IN =6.5, T J =25 C Output Noise oltage en B=10Hz to 10KHz, T J =25 C 100 μ I OUT =40, f=120hz, T J =25 C, IN =4.5, RIPPLE =1 PP I OUT =100 1.00 1.10 I OUT =500 1.15 1.25 I OUT =800 1.20 1.30 UNISONIC TECHNOLOGIES CO., LTD 5 of 15
ELECTRICAL CHARACTERISTICS(Cont.) For -1.8 PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT IN =3.8, I OUT =10, T J =25 C 1.764 1.800 1.836 IN =3.3 to 8 LD1117 : I OUT =0~800 1.764 1.800 1.836 LD1117A : I OUT =0~1000 Line Regulation Δ IN =3.3 to 8, I OUT =0 1 6 m Δ IN =3.3 LD1117 : I OUT =0~800 LD1117A : I OUT =0~1000 Temperature stability Δ 0.5 % Long Term Stability Δ 1000 hrs, T J =125 C 0.3 % Quiescent Current I Q IN 10 5 10 Current Limit I LIMIT IN =6.8, T J =25 C Output Noise oltage en B=10Hz to 10KHz, T J =25 C 100 μ I OUT =40, f=120hz, T J =25 C, IN =5.5, RIPPLE =1 PP I OUT =100 1.00 1.10 I OUT =500 1.15 1.25 I OUT =800 1.20 1.30 For -2.5 PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT IN =4.5, I OUT =10, T J =25 C 2.450 2.500 2.550 IN =3.9 to 10 LD1117 : I OUT =0~800 2.450 2.500 2.550 LD1117A : I OUT =0~1000 Line Regulation Δ IN =3.9 to 10, I OUT =0 1 6 m IN =3.9 Δ LD1117 : I OUT =0~800 LD1117A : I OUT =0~1000 Temperature stability Δ 0.5 % Long Term Stability Δ 1000 hrs, T J =125 C 0.3 % Quiescent Current I Q IN 10 5 10 Current Limit I LIMIT IN =7.5, T J =25 C Output Noise oltage en B=10Hz to 10KHz, T J =25 C 100 μ I OUT =40, f=120hz, T J =25 C, IN =5.5, RIPPLE =1 PP I OUT =100 1.00 1.10 I OUT =500 1.15 1.25 I OUT =800 1.20 1.30 UNISONIC TECHNOLOGIES CO., LTD 6 of 15
ELECTRICAL CHARACTERISTICS(Cont.) For -2.85 PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT IN =4.85, I OUT =10, T J =25 C 2.793 2.850 2.907 IN =4.25 to 10 LD1117 : I OUT =0~800 2.793 2.850 2.907 LD1117A : I OUT =0~1000 Line Regulation Δ IN =4.25 to 10, I OUT =0 1 6 m IN =4.25 Δ LD1117 : I OUT =0~800 LD1117A : I OUT =0~1000 Temperature stability Δ 0.5 % Long Term Stability Δ 1000 hrs, T J =125 C 0.3 % Quiescent Current I Q IN 10 5 10 Current Limit I LIMIT IN =7.85, T J =25 C Output Noise oltage en B=10Hz to 10KHz, T J =25 C 100 μ I OUT =40, f=120hz, T J =25 C, IN =5.85, RIPPLE =1 PP I OUT =100 1.00 1.10 I OUT =500 1.15 1.25 I OUT =800 1.20 1.30 For -3.0 PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT IN =5, I OUT =10, T J =25 C 2.940 3.000 3.060 IN =4.5 to 10 LD1117 : I OUT =0~800 2.940 3.000 3.060 LD1117A : I OUT =0~1000 Line Regulation Δ IN =4.5 to 12, I OUT =0 1 6 m IN =4.5 Δ LD1117 : I OUT =0~800 LD1117A : I OUT =0~1000 Temperature stability Δ 0.5 % Long Term Stability Δ 1000 hrs, T J =125 C 0.3 % Quiescent Current I Q IN 15 5 10 Current Limit I LIMIT IN =8, T J =25 C Output Noise oltage en B=10Hz to 10KHz, T J =25 C 100 μ I OUT =40, f=120hz, T J =25 C, IN =6, RIPPLE =1 PP I OUT =100 1.00 1.10 I OUT =500 1.15 1.25 I OUT =800 1.20 1.30 UNISONIC TECHNOLOGIES CO., LTD 7 of 15
ELECTRICAL CHARACTERISTICS(Cont.) For -3.3 PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT IN =5.3, I OUT =10, T J =25 C 3.234 3.300 3.366 IN =4.75 to 10 LD1117 : I OUT =0~800 3.234 3.300 3.366 LD1117A : I OUT =0~1000 Line Regulation Δ IN =4.75 to 15, I OUT =0 1 6 m IN =4.75 Δ LD1117 : I OUT =0~800 LD1117A : I OUT =0~1000 Temperature stability Δ 0.5 % Long Term Stability Δ 1000 hrs, T J =125 C 0.3 % Quiescent Current I Q IN 15 5 10 Current Limit I LIMIT IN =8.3, T J =25 C Output Noise oltage en B=10Hz to 10KHz, T J =25 C 100 μ I OUT =40, f=120hz, T J =25 C, IN =6.3, RIPPLE =1 PP I OUT =100 1.00 1.10 I OUT =500 1.15 1.25 I OUT =800 1.20 1.30 For -3.6 PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT IN =5.6, I OUT =10, T J =25 C 3.528 3.600 3.672 IN =5 to 10 LD1117 : I OUT =0~800 3.528 3.600 3.672 LD1117A : I OUT =0~1000 Line Regulation Δ IN =5 to 15, I OUT =0 1 6 m Δ IN =5 LD1117 : I OUT =0~800 LD1117A : I OUT =0~1000 Temperature stability Δ 0.5 % Long Term Stability Δ 1000 hrs, T J =125 C 0.3 % Quiescent Current I Q IN 15 5 10 Current Limit I LIMIT IN =8.6, T J =25 C Output Noise oltage e N B=10Hz to 10KHz, T J =25 C 100 μ I OUT =40, f=120hz, T J =25 C, IN =6.6, RIPPLE =1 PP I OUT =100 1.00 1.10 I OUT =500 1.15 1.25 I OUT =800 1.20 1.30 UNISONIC TECHNOLOGIES CO., LTD 8 of 15
ELECTRICAL CHARACTERISTICS(Cont.) For -5.0 PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT IN =7, I OUT =10, T J =25 C 4.900 5.000 5.100 IN =6.5 to 15 LD1117 : I OUT =0~800 4.900 5.000 5.100 LD1117A : I OUT =0~1.0A Line Regulation Δ IN =6.5 to 15, I OUT =0 IN =6.5 Δ LD1117 : I OUT =0~800 1 15 m LD1117A : I OUT =0~1000 Temperature stability Δ 0.5 % Long Term Stability Δ 1000 hrs, T J =125 C 0.3 % Quiescent Current I Q IN 15 5 10 Current Limit I LIMIT IN =10, T J =25 C Output Noise oltage e N B=10Hz to 10KHz, T J =25 C 100 μ I OUT =40, f=120hz, T J =25 C, IN =8, RIPPLE =1 PP I OUT =100 1.00 1.10 I OUT =500 1.15 1.25 I OUT =800 1.20 1.30 For -ADJ PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Reference oltage REF IN - =2, I OUT =10, T J =25 C 1.225 1.25 1.275 Reference oltage REF IN - =1.4 to 10 LD1117 : I OUT =10~800 1.225 1.25 1.275 LD1117A : I OUT =10~1000 Line Regulation Δ IN - =1.5 to 13.75, I OUT =10 0.035 0.2 % IN - =3 Δ LD1117 : I OUT =10~800 0.1 0.4 % LD1117A : I OUT =10~1000 Temperature stability Δ 0.50 % Long Term Stability Δ 1000 hrs, T J =125 C 0.3 % Operating Input oltage IN 15 Adjustment Pin Current I ADJ IN 15 60 120 μa Adjustment Pin Current Change ΔI ADJ IN - =1.4 to 10, LD1117 : I OUT =10 ~ 800 1 5 μa LD1117A : I OUT =10 ~ 1000 Minimum Load Current I O(MIN) IN =15 2 5 Current Limit I LIMIT IN - =5, T J =25 C Output Noise (% O ) en B=10Hz to 10KHz, T J =25 C 0.003 % I OUT =40, f=120hz, T J =25 C, IN - =3, RIPPLE =1 PP I OUT =100 1.00 1.10 I OUT =500 1.15 1.25 I OUT =800 1.20 1.30 UNISONIC TECHNOLOGIES CO., LTD 9 of 15
TYPICAL APPLICATIONS UTC -XX IN + IN OUT + 10µF GND/ADJ 100µF Fig.1 Tyncal Application Circuit UTC -XX IN IN OUT 10µF GND/ADJ 10µF Fig.2 Tyncal Application Circuit (FOR MLCC) Fig.3 Negative Supply UNISONIC TECHNOLOGIES CO., LTD 10 of 15
TYPICAL APPLICATIONS(Cont.) Fig.4 Active Terminator for SCSI-2 BUS Fig.5 Circuit for Increasing UNISONIC TECHNOLOGIES CO., LTD 11 of 15
APPLICATION NOTE of ADJUSTABLE The adjustable has a reference voltage of between the OUT and ADJ/GND pins. I ADJ is 60μA typ. (120µA max.) and ΔI ADJ is 1μA typ. (5µA max.). R 1 is normally fixed to 120Ω. From figure 4 we obtain: = REF +R 2 (I ADJ +I R1 )= REF + R 2 (I ADJ + REF /R 1 )= REF (1+R 2 /R 1 ) + R 2 x I ADJ. Usually R 2 value is in the range of few KΩ, so the R 2 X I ADJ product could be neglected; then the above expression becomes: = REF (1+R 2 /R 1 ) For better load regulation, realize a good Kelvin connection of R 1 and R 2 is important. Particularly R 1 connection must be realized very close to OUT and ADJ/GND pin, while R 2 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 R 2 resistor (See Fig. 8) Fig.6 Adjustable Application Circuit Fig.7 Adjustable Application Circuit (FOR MLCC) Fig.8 Adjustable Application with improved Ripple Rejection. UNISONIC TECHNOLOGIES CO., LTD 12 of 15
TYPICAL CHARACTERISTICS, D () Ripple Rejection (db) Load Current() Input oltage Change() Deviation(m) Deviation(m) UNISONIC TECHNOLOGIES CO., LTD 13 of 15
TYPICAL CHARACTERISTICS(Cont.) Short Circuit Current (A) 2.8 2.4 2.0 1.6 1.2 0.8 0.4 Short-Circuit Current T J =125 C T J =25 C Deveiation (%) 0.16 0.12 0.08 0.04 0-0.04-0.08 ΔI LOAD =1A 0 0 5 10 Input/Output Differential () -0.12-50 -25 0 25 50 75 100 125 Temperature ( C) 1.255 1.250 Reference oltge vs. Temperature 3.70 3.65 vs. Temperautre OUT Set With 1% Resistors Reference oltage, REF () 1.245 1.240 1.235 1.230 1.225 1.220 1.215 1.210 1.205-75 -50-25 0 25 50 75 100 125 150 175 Junction Temperature( C), OUT() 3.60 3.55 3.50 3.45 3.40 3.35 3.30 3.25 3.20-75 OUT=3.3-50 -25 0 25 50 75 100 125 150 175 Junction Temperature, T J ( C) Power (W) 10 8 6 4 2 Maximum Power Dissipation TO-263 & TO-252 SOT-223, OUT() 2.05 2.00 1.95 1.90 1.85 1.80 1.75 1.70 1.65 vs. Temperautre OUT Set With 1% Resistors OUT=1.8 0 25 45 65 85 105 125 Case Temperature, T C ( C) 1.60 1.55-75 -50-25 0 25 50 75 100 125 150 175 Junction Temperature, T J ( C) UNISONIC TECHNOLOGIES CO., LTD 14 of 15
TYPICAL CHARACTERISTICS(Cont.), OUT() ESR(Ohm) UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD 15 of 15