LM1085GMD LM1085IGDII LM1085SMD 3 AMP POSITIVE VOLTAGE REGULATOR INPUT SAFE AREA PROTECT ION CU RR EN T LIMITING AMPLIFIER L IM I T OU TPUT SEN SE T H E R M AL O V ER L O AD VOL T AGE REGUL ATION AMPLIFIER VR E F FEATURES • Low Dropout Performance • Fixed or Adjustable Voltages • Fixed Output Voltages of 3.3V, 5V & 12V • Adjustable Output Voltage Range From 1.2V • Line Regulation 0.015% / V Typical. • Load Regulation 0.01% Typical. • Available in Hermetically Sealed TO–3, SMD1 and TO–257 (isolated & non-isolated) Packages. • Military Temperature Range (–55 to +150°C) DEVICE(1) LM1085K–XX LM1085G–XX LM1085IG–XX LM1085SMD–XX ADJUST DESCRIPTION PACKAGE TO–3 TO–257 Isolated TO–257 SMD1 Note The LM1085 voltage regulators are monolithic integrated circuits designed for use in applications requiring a well regulated positive output voltage with low input-output differential voltage. 1) –XX = Voltage Option: 3.3, 5 or 12 –XX = Left blank for Adjustable Option. Features include full power usage of up to 3A load current, internal current limiting and thermal shutdown. Safe area protection on the die is also included, providing protection of the series pass Darlington transistor under most conditions. The hermetically sealed TO–3 packages are utilised for high reliablitiy and low thermal resistance, whilst the SMD1 package is designed for surface mount applications. ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated) 35V VIN Input – Output Voltage Differential PD Power Dissipation RqJC Thermal Resistance Junction To Case TO–3 TO–3 Control Power 0.93°C / W 3.0°C / W RqJC Thermal Resistance Junction To Case SMD1 SMD1 Control Power 0.79°C / W 4.0°C / W RqJC Thermal Resistance Junction To Case TO–257 TO–257 Control Power 0.79°C / W 4.0°C / W TJ Operating Junction Temperature Range Control Power –55 to 150°C –55 to 200°C TSTG Storage Temperature Range TLEAD Lead Temperature (for 10 sec.) Internally limited * –65 to 150°C 300°C * These ratings are only applicable for power dissipations of 30 Watts over a limited range of VIN – VOUT. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: [email protected] Prelim. 7/00 LM1085GMD LM1085IGDII LM1085SMD ELECTRICAL CHARACTERISTICS Output Voltage Test Conditions Parameter 3.3 VO 4 Output Voltage 5 12 VREF 4 REG(LINE) Reference Voltage 4 (TJ = 25°C Unless otherwise stated) ADJ. Line Regulation VIN – VOUT = 6.3V IO = 10mA IO = 10mA to 3A TJ = Over Temp VIN – VOUT = 8V IO = 10mA IO = 10mA to 3A TJ = Over Temp VIN – VOUT = 15V IO = 10mA IO = 10mA to 3A TJ = Over Temp VIN – VOUT = VO + 3V IO = 10mA IO = 10mA to 3A TJ = Over Temp VIN – VOUT = 1.5 to 15V TJ = 25°C IO = 10mA TJ = Over Temp VIN – VOUT = 1.5 to 35V IO = 10mA TJ = Over Temp REG(LOAD) 4 Load Regulation VD Dropout Voltage ICL Current Limit IQ Quiescent Current REG(THERM) Thermal Regulation 1,2 3 3 3 3 Min. Typ. Max. 3.267 3.3 3.333 3.234 3.3 3.366 4.95 5 5.05 4.90 5 5.10 11.88 12 12.12 11.76 12 12.24 1.238 1.25 1.262 1.225 1.25 1.270 0.015 0.2 3 0.035 3 Adjust Pin Current DIPIN Adjust Pin Current Change TS Temperature Stability IO Minimum Load Current VN RMS Output Noise RA Ripple Rejection Ratio 0.3 VIN – VOUT = 3V TJ = Over Temp 3 0.2 0.4 DVOUT , DVREF = 1% TJ = Over Temp 3 1.3 1.5 VIN – VOUT = 5V TJ = Over Temp 3 3.2 VIN – VOUT = 25V TJ = Over Temp 3 0.2 VIN – VOUT = 35V TJ = Over Temp 3 tp = 30ms TJ = 25°C 3 TJ = Over Temp 3 5 3 VIN – VOUT = 3V IO = 3A 3 60 % % % V A 0.01 %/W 5 mA mA % 0.5 IO = 0.5A V mA 0.2 3 V 10 120 TJ = 25°C TJ = Over Temp 0.5 0.002 IO = 0.5A VIN – VOUT = 25V TJ = Over Temp 4.0 55 TJ = Over Temp TJ = Over Temp 6 0.1 TJ = 25°C VIN – VOUT = 5V 5 0.6 VIN – VOUT = 3V TJ = 25°C IPIN 0.05 Unit 10 mA 0.003 %VO 75 dB Notes 1. Test Conditions unless otherwise stated: VIN = 1.5 to 35V, or Maximum Input, whichever is less. IO = 10mA to 3A. 2. These specifications are only applicable for power dissipations of 30 Watts over a limited range of VIN – VOUT. 3. Over Temp. = Over specified Junction Temperature Range (See Absolute Maximum Ratings). 4. Low duty cycle pulse test with Kelvin connections required. Changes in output voltage are covered under the specification for thermal regulation. 5. Bandwidth of 10Hz to 10kHz. 6. 120Hz input ripple, 15V = 64dB min. COUT (CADJ) = 25mF. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: [email protected] Prelim. 7/00 LM1085GMD LM1085IGDII LM1085SMD K Package (TO–3) G & IG Packages (TO–257) 40.01 (1.575) Max. 4.83 (0.190) 5.08 (0.200) 0.89 (0.035) 1.14 (0.045) 10.41 (0.410) 10.92 (0.430) 3.56 (0.140) Dia. 3.81 (0.150) 1 2 3 12.07 (0.500) 19.05 (0.750) 4.47 (0.176) Rad. 2 Pls. 13.38 (0.527) 13.64 (0.537) 26.67 (1.050) Max. 16.38 (0.645) 16.89 (0.665) 10.41 (0.410) 10.67 (0.420) 22.23 (0.875) Max. 11.43 (0.450) 6.35 (0.250) 1.09 (0.043) 0.97 (0.038) Dia. 1.63 (0.064) 1.52 (0.060) 0.64 (0.025) Dia. 0.89 (0.035) 2.54 (0.100) BSC 12.19 (0.48) 11.18 (0.44) 3.05 (0.120) BSC 30.40 (1.197) 29.90 (1.177) SMD1 PACKAGE 0 .7 6 (0 .0 3 0 ) m in . 11.18 (0.440) 10.67 (0.420) 4 .1 4 (0 .1 6 3 ) 3 .8 4 (0 .1 5 1 ) 2 3 .7 0 (0 .1 4 6 ) 3 .4 1 (0 .1 3 4 ) 0 .8 9 (0 .0 3 5 ) m in . 3 .7 0 (0 .1 4 6 ) 3 .4 1 (0 .1 3 4 ) 1 3 1 0 .6 9 (0 .4 2 1 ) 1 0 .3 9 (0 .4 0 9 ) 1 LM1085 Pin 1 2 Fixed Adjustable COMMON ADJUST INPUT INPUT Case is OUTPUT Semelab plc. Fixed Adjustable COMMON ADJUST OUTPUT OUTPUT INPUT INPUT Case is OUTPUT 7 (0 8 (0 8 (0 8 (0 .3 8 .3 6 .4 5 .4 4 1 ) 9 ) 6 ) 4 ) 0 .5 0 (0 .0 2 0 ) 0 .2 6 (0 .0 1 0 ) LM1085SMD Pin 1 2 3 LM1085G Pin 1 2 3 2 9 .6 9 .3 1 1 .5 1 1 .2 16.97 (0.668) 16.87 (0.664) 3 .6 0 (0 .1 4 2 ) M a x . 1 6 .0 2 (0 .6 3 1 ) 1 5 .7 3 (0 .6 1 9 ) 4.09 (0.161) 3.84 (0.151) 2 Pls Fixed COMMON OUTPUT INPUT Adjustable ADJUST OUTPUT INPUT LM1085IG Pin 1 2 3 Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: [email protected] Fixed Adjustable COMMON ADJUST OUTPUT OUTPUT INPUT INPUT Case is ISOLATED Prelim. 7/00