TS1085 3A Low Dropout Positive Voltage Regulator TO-263 Low Dropout Voltage 1.3V max. Pin assignment: 1. Ground / Adj 2. Output 3. Input General Description The TS1085 Series are high performance positive voltage regulators are designed for use in applications requiring low dropout performance at full rated current, additionally, the PJ1085 Series provides excellent regulation over variations due to changes in line, load and temperature. Outstanding features include low dropout performance at rated current, fast transient response, internal current limiting and thermal shutdown protection of the output device. The TS1085 Series are three terminal regulators with fixed and adjustable voltage options available in popular packages. This series is offered in 3-pin TO-263, TO-220 and TO-252 package. Features Low dropout performance 1.3V max. Adjust pin current max 90µA over temperature Full current rating over line and temperature. Line regulation typical 0.015%. Fast transient response Load regulation typical 0.05%. ±2%Total output regulation over line, load and Fixed/adjustable output voltage temperature Block Diagram TO-220, TO-263 and TO-252 package Ordering Information Part No. Operating Temp. Package (Ambient) TS1085CZ-xx TO-220 -20 ~ +85 oC TS1085CM-xx TO-263 TO-252 TS1085CP-xx Note: Where xx denotes voltage option, available are 5.0V, 3.3V and 2.5V. Leave blank for adjustable version. Contact factory for additional voltage options. Absolute Maximum Rating Input Supply Voltage Operation Input Supply Voltage Vin 12 V Vin (operate) 7 V PD Internally Limited Power Dissipation Operating Junction Temperature Range TJ Storage Temperature Range TSTG W -25 ~ +150 o C -65 ~ +150 o C o Lead Soldering Temperature (260 C) TS1085 TO-220 / TO-263 Package 10 TO-252 Package 5 1-6 S 2003/12 rev. A Electrical Characteristics Ta = 25 oC, unless otherwise specified. Adjustable version test with Vout = 2.5V. Parameter Output Voltage Reference Voltage Conditions Min Typ Max Unit Vout+1.5V ≤ Vin ≤ 7V, Io=10mA 0.990|Vo| 5.0 / 3.3 1.010|Vo| V Vout+1.5V ≤ Vin ≤ 7V, Io=3A 0.980|Vo| 2.5 1.020|Vo| V (Vin-out) =1.5V, Io=10mA 0.990|Vo| 1.25 1.010|Vo| V (Vin-out) =1.5V, Io=3A 0.980|Vo| 1.020|Vo| V Input Supply Voltage -- -- 7 V Line Regulation Vout+1.5V ≤ Vin ≤ 7V, Io=10mA -- 0.015 0.2 % Load Regulation (note 1,2) Vin=Vout+1.5V, -- 0.05 1.0 % 10mA ≤ Io ≤ 3A % Dropout Voltage Io=3A, ∆Vout=0.1%Vout -- 1.3 1.4 V Minimum Load Current Vin=5V -- 8 10 mA -- 90 -- uA 3.5 -- -- A Adjustable Pin Current Current Limit Vin - Vout=3V Temperature Stability Io=10mA -- 0.5 -- % Ripple Rejection F = 120Hz, Io=3A Cout=25uF, -- 60 70 dB Vin=Vout + 3V Thermal Performance Condition Package type Typ Thermal Resistance TO-220 45 Junction to Ambient TO-263 45 TO-252 80 Unit o C/W Note 1: See thermal regulation specification for changes in output voltage due to heating effects. Line and load regulation are measured at a constant junction temperature by low duty cycle pulse testing. Load regulation is measured at the output lead = 1/18” from the package. Note 2: Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the input / output voltage difference and the output current. Guaranteed maximum power dissipation will not be available over the full input / output voltage range. Note 3: Quiescent current is defined as the minimum output current required to maintain the regulation. TS1085 2-6 2003/12 rev. A Typical Application Circuit Fixed output voltage version Vout = Vref * (1 + R2 / R1) * Cin is requested if regulator is located Far from power supply filter ** Design Cout as close to Vout pin as possible Adjustable output voltage version TS1085 3-6 2003/12 rev. A Electrical Characteristics Curve Figure 1: dropout voltage v.s. output current Figure 2: load regulation v.s. temp. Figure 3: output change v.s. temp. Figure 4: line regulation Figure 5: line transient response Figure 6: load transient response TS1085 4-6 2003/12 rev. A TO-220 Mechanical Drawing K B A TO-220 DIMENSION L C DIM P J I M D H F G O E N MILLIMETERS MIN MAX INCHES MIN MAX A 10.000 10.500 0.394 0.413 B 3.240 4.440 0.128 0.175 C D 2.440 - 2.940 6.350 0.096 - 0.116 0.250 E 0.381 1.106 0.015 0.040 F G 2.345 4.690 2.715 5.430 0.092 0.092 0.058 0.107 H 12.700 14.732 0.500 0.581 I J 8.382 14.224 9.017 16.510 0.330 0.560 0.355 0.650 K 3.556 4.826 0.140 0.190 L M 0.508 27.700 1.397 29.620 0.020 1.060 0.055 1.230 N 2.032 2.921 0.080 0.115 O P 0.255 5.842 0.610 6.858 0.010 0.230 0.024 0.270 TO-263 Mechanical Drawing TO-263 DIMENSION A E F B I H C G D TS1085 5-6 DIM MILLIMETERS MIN MAX INCHES MIN MAX A 10.000 10.500 0.394 0.413 B C 14.605 0.508 15.875 0.991 0.575 0.020 0.625 0.039 D 2.420 2.660 0.095 0.105 E F 4.064 1.118 4.830 1.400 0.160 0.045 0.190 0.055 G 0.450 0.730 0.018 0.029 H I 8.280 1.140 8.800 1.400 0.325 0.044 0.346 0.055 J 1.480 1.520 0.058 0.060 2003/12 rev. A TO-252 Mechanical Drawing E J A TO-252 DIMENSION F I B G D TS1085 C H 6-6 DIM MILLIMETERS INCHES A MIN 6.570 MAX 6.840 MIN 0.259 MAX 0.269 B 9.250 10.400 0.364 0.409 C D 0.550 2.560 0.700 2.670 0.022 0.101 0.028 0.105 E 2.300 2.390 0.090 0.094 F 0.490 0.570 0.019 0.022 G H 1.460 0.520 1.580 0.570 0.057 0.020 0.062 0.022 I 5.340 5.550 0.210 0.219 J 1.460 1.640 0.057 0.065 2003/12 rev. A