LT1086220M05

LAB TO–220 Isolated Metal Package 10.41 10.67 4.70 5.00 0.70 0.90 16.38 16.89 13.39 13.64 3.56 Dia. 3.81 SEME LT1086–220M–05 LT1086–05–220M LT1086–12–220M MILITARY VERSION Pin 1 2 3 LT1086–220M LT1086–05–220M LT1086–12–220M PR EL IM INA RY FEATURES • • • • • • • 10.41 10.92 LOW DROPOUT 1.5 AMP POSITIVE VOLTAGE REGULATOR 123 0.89 1.14 Low Dropout Performance Fixed or Adjustable Voltages Fixed Output Voltages of 5V & 12V Output Current 1.5A Line Regulation 0.015% / V Typical. Load Regulation 0.1% Typical. Military Temperature Range (–55 to +150°C) 12.70 19.05 2.54 BSC 2.65 2.75 BLOCK DIAGRAM Pinouts VIN Fixed Adjustable GROUND ADJUST OUTPUT OUTPUT INPUT INPUT Case is ISOLATED THERMAL LIMIT Ordering Information Positive Adjustable Regulator Fixed +5V Regulator Fixed +12V Regulator VADJ VOUT ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated) VIN PD VIN Input Voltage * Power Dissipation 30V Internally limited 25V 20V 25V Operating Input Voltage Adjustable 5 Volt 12 Volt TJ TSTG TLEAD Operating Junction Temperature Range Storage Temperature Range Control Power –55 to 150°C –55 to 200°C –65 to 150°C 300°C Lead Temperature (for 10 sec.) * Although the devices’ maximum operating voltage is limited (20V for the 5V device, and 25V for the 12V and adjustable devices) the devices are guaranteed to withstand transient input voltages up to 30V. For input voltages greater than the maximum operating input voltage, some degradation of specifications will occur. For 5V and 12V devices operating at input-output voltage differentials >15V, a minimum external load of 5mA is required to maintain regulation. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk Prelim. 5/95 LAB DESCRIPTION SEME LT1086–220M–05 LT1086–05–220M LT1086–12–220M MILITARY VERSION The LT1086 is designed to provide 1.5A with higher efficiency than currently available devices. All internal circuitry is designed to operate down to 1V input to output differential and the dropout voltage is fully specified as a function of load current. Dropout is guaranteed at a maximum of 1.5V at maximum output current, decreasing at lower load currents. On-chip trimming adjusts the reference output voltage to 1%. Current limit is also trimmed, minimising the stress on both the regulator and power source circuitry under overload conditions. The LT1086 is pin compatible with older 3 terminal adjustable regulators. A 10mF output capacitor is required on these new devices; however, this is usually included in most regulator designs. Unlike PNP regulators, where up to 10% of the output current is wasted as quiescent current, the LT1086 quiescent current flows into the load, increasing efficiency. ELECTRICAL CHARACTERISTICS Parameter PR EL IM INA RY (TJ = 25°C unless otherwise stated) Output Voltage Test Conditions 5 VIN = 6.5 to 20V TJ = –55 to 150°C TJ = –55 to 150°C TJ = –55 to 150°C VIN = 6.5 to 20V IO = 0 IO = 0 IO = 0 to 1.5A Output Voltage 12 VIN = 13.5V to 25V IO = 0 to 1.5A Reference Voltage ADJ. VIN – VOUT = 1.5 to 15V IO = 10mA to 1.5A 5 TJ = –55 to 150°C TJ = –55 to 150°C TJ = –55 to 150°C TJ = –55 to 150°C TJ = –55 to 150°C TJ = –55 to 150°C Line Regulation 12 VIN = 13.5 to 25V ADJ. VIN – VOUT = 1.5 to 15V VIN = 8V ILOAD = 10mA 5 IO = 0 to 1.5A VIN = 15V IO = 0 to 1.5A Load Regulation 12 See notes 1,2 ADJ. VIN – VOUT = 3V IO = 10mA to 1.5A 5 Min. 4.90 Typ. Max. 5 5.10 Unit VO 11.76 12 12.24 V VREF 1.225 1.25 0.5 1 1 2 0.015 0.035 5 10 12 24 0.1 0.2 1.3 1.270 10 10 25 25 0.2 0.2 20 35 36 72 0.3 0.4 1.5 % mV % mV REG(LINE) REG(LOAD) DVOUT = 50mV IOUT = 1.5A IOUT = 1.5A TJ = –55 to 150°C TJ = –55 to 150°C TJ = –55 to 150°C VD Dropout Voltage 12 DVOUT = 120mV DVREF = 1% 1.3 1.5 V See note 3 ADJ. IOUT = 1.5A 1.3 1.5 Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk Prelim. 5/95 LAB ELECTRICAL CHARACTERISTICS Parameter Output Voltage Test Conditions VIN – VOUT = 5V VIN – VOUT = 25V ICL IQ Current Limit Quiescent Current 5 12 SEME LT1086–220M–05 LT1086–05–220M LT1086–12–220M MILITARY VERSION (TJ = –55 to +150°C unless otherwise stated) Min. 1.5 PR EL IM INA RY TJ = –55 to 150°C TJ = –55 to 150°C Typ. Max. 1.6 0.15 5 5 5 0.008 68 60 75 55 120 0.2 0.5 0.3 0.003 TBA TBA 1 5 10 10 10 0.04 2.5 Unit A 0.075 £ 20V VIN £ 25V VIN TJ = –55 to 150°C TJ = –55 to 150°C TJ = –55 to 150°C TA = 25°C VIN = 8V VIN = 15V mA Minimum Load Current 4 ADJ. VIN – VOUT = 25V TP = 30ms REG(THERM) Thermal Regulation %/W 5 TJ = –55 to 150°C 60 54 60 RA Ripple Rejection 12 COUT = 25mF Tantalum f = 120Hz IO = 1.5A ADJ. VIN – VOUT = 3V dB CADJ = 25mF IPIN Adjust Pin Current TJ = –55 to 150°C TJ = –55 to 150°C mA mA % % % °C/W DIPIN TS VN RqJC Adjust Pin Current Change Temperature Stability Long Term Stability RMS Output Noise VIN – VOUT = 1.5 to 15V TJ = –55 to 150°C IO = 10mA to 1.5A TA = 125°C T = 1000 Hrs TA = 25°C f = 10Hz to 10kHz Thermal Resistance Junction – Case Control Circuitry Power Transistor Notes: 1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are measured at a constant junction temperature by low duty cycle pulse testing. Load regulation is measured at the output lead » 1/8” from the package. 2. Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the input - output differential and the output current. Guaranteed maximum power dissipation will not be available over the full input - output voltage range. 3. Dropout voltage is specified over the full output current range of the device. 4. Minimum load current is defined as the minimum output current required to maintain regulation. At 25V input-output differential the device is guaranteed to regulate if the output current is greater than 10mA. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk Prelim. 5/95