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| OM1860NKM OM1860STM OM1860NHM 1.5 AMP LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR APPROVED TO DESC DRAWING 5962-89981 Three Terminal, Positive Adjustable Low Dropout Voltage Regulator In Hermetic Packages FEATURES * * * * * * * * Similar To Industry Standard LT1086 Approved To DESC Standardized Military Drawing Number 5962-89981 Adjustable Output Voltage Built In Thermal Overload Protection Short Circuit Current Limiting Maximum Output Voltage Tolerance is Guaranteed To 1% Guaranteed Dropout Voltage At Multiple Current Levels TO-257 Available in Isolated and Non-Isolated Packages DESCRIPTION This three terminal positive adjustable voltage regulator is designed to provide 1.5A with higher efficiency than conventional voltage regulators. This device is designed to operate to 1 Volt input to output differential and the dropout voltage is specified as a function of load current. Supplied in easy-to-use hermetic TO-257, TO-3 and TO-39 packages, this device is ideally suited for Military applications where small size and high reliability is required. ABSOLUTE MAXIMUM RATINGS @ 25C Power Dissipation (Pd) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 V Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to + 150C Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300C Thermal Resistance: JC (TO-257, Isolated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2C/W JA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42C/W JC (TO-3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0C/W JA (TO-3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35C/W JC (TO-39) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40C/W JA (TO-39) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140C/W Maximum Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A Recommended Operating Conditions: Output Voltage Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.3V to 15 V Ambient Operating Temperature Range (TA) . . . . . . . . . . . . . . . . - 55C to + 125C Input Voltage Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V to 25 V 1 08 R3 Supersedes 4 11 R2 3.3 3.3 - 83 OM1860STM OM1860NKM OM1860NHM ELECTRICAL CHARACTERISTICS Parameter Reference Voltage Symbol VREF -55C TA 125C (unless otherwise specified) Min. 1.238 Max. 1.262 Unit V Test Conditions VIN - VOUT = 3.0 V, TA = 25 C IOUT = 10 mA 1.5 V VIN - VOUT 25 V, 10 mA IOUT 1.0 A * 1.220 1.270 V Line Regulation (Note 1) VOUT VIN 1.5 V VIN - VOUT 15 V, IOUT = 10 mA, TA = 25 C 15 V VIN - VOUT 35 V, IOUT = 10 mA 0.2 % * 0.5 % Load Regulation (Note 1) VOUT IOUT VIN - VOUT = 3.0 V, TA = 25 C 10 mA IOUT 1.0 A IOUT = 1.0 A, VREF = 1% 30 ms pulse, TA = +25 C f = 120 Hz, CAdj = 25 F, COUT = 25 F (tantalum), IOUT = 1.0 A, VIN - VOUT = 3.0 V 1.5 V VIN - VOUT 25 V, 10 mA IOUT 1.0 A 1.5 V VIN - VOUT 25 V, 10 mA IOUT 1.0 A VIN - VOUT = 25 V VIN - VOUT 5.0 V VIN - VOUT = 25 V -55 C TJ +125 C 0.8 % Dropout Voltage Thermal Regulation Ripple Rejection VDO VIN VOUT * * * 60 1.0 1.5 0.04 % V %/W dB Adjust Pin Current IAdj IAdj * * * * * * 120 A Adjust Pin Current Change 5.0 A Miminum Load Current Current Limit IMin ILim VOUT T VOUT T 10 1.5 0.075 1.5 2.5 mA A A % Temperature Stability (Note 2) Long Term Stability (Note 2) TA = +125 C, t = 1000 hrs 1.0 % Notes: 1. Line and Load Regulation are measured at a constant junction temperature using a low duty cycle pulse technique. Although power dissipation is internally limited, regulation is guaranteed up to the maximum power dissipation of 15 W. Power dissipation is determined by the input/output differential voltage and the output current. Guaranteed maximum power dissipation will not be available over the full input/output voltage range. 3.3 2. Guaranteed by design, characterization or correlation to other tested parameters. 3. The * denotes the specifications which apply over the full operating temperature range. PART NUMBER DESIGNATOR Standard Military Drawing Number 5962-8998101Y 5962-8998101X 5962-8998101U Omnirel Part Number OM1860NHM OM1860NKM OM1860STM Part Numbering System Voltage Regulators Package TO-39 TO-3 TO-257 (Isolated) OM-1860-S-T-M Company Identification Part Number Screening M= MIL-M 38535 Package (see Package codes*) * Package Codes: K= TO-204AA (TO-3) H= TO-39 T= TO-257AA S= Isolated N= Non isolated 3.3 - 84 OM1860STM OM1860NKM OM1860NHM LOAD REGULATION 0.10 2.5 I= 1.5A SHORT CIRCUIT CURRENT SHORT CIRCUIT CURRENT (A) 2 OUTPUT VOLTAGE DEVIATION (%) 0.05 Tj = 150C 0 -0.05 -0.10 -0.15 -0.20 -50 -25 0 25 50 75 100 125 150 1.5 Tj = 25C 1 Tj = -55C 0.5 GUARANTEED OUTPUT CURRENT 0 0 5 10 15 20 25 30 TEMPERATURE (C) INPUT/OUTPUT DIFFERENTIAL (V) 100 90 ADJUSTMENT PIN CURRENT RIPPLE REJECTION VS. CURRENT 100 90 80 fR= 120Hz VRIPPLE 3Vp-p fR =20kHz VRIPPLE 3Vp-p ADJUSTMENT PIN CURRENT (A) 80 RIPPLE REJECTION (dB) 70 60 50 40 30 20 10 0 -50 -25 0 25 50 75 100 125 150 70 60 50 40 30 20 10 0 0 0.25 0.5 VOUT=5V CADJ =25F COUT=25F VRIPPLE 0.5Vp-p VRIPPLE 0.5Vp-p 0.75 1 1.25 1.5 TEMERATURE (C) OUTPUT CURRENT (A) TEMPERATURE STABILITY 2.0 MINIMUM OPERATING CURRENT 10 MINIMUM OPERATING CURRENT (mA) 9 8 7 6 5 4 3 2 1 0 0 5 10 Tj = -55C 15 20 25 30 35 Tj = 25C Tj = 150C OUTPUT VOLTAGE CHANGE (%) 1.0 0 -1.0 -2.0 -50 -25 0 25 50 75 100 125 150 TEMPERATURE (C) INPUT/OUTPUT DIFFERENTIAL (V) 3.3 - 85 OM1860STM OM1860NKM OM1860NHM TYPICAL APPLICATIONS 1.2V - 15V Adjustable Regulator VIN + OM1860 5V Regulator with Shutdown VIN VIN OM1860 VOUT ADJ C1 10F R2 5k R1 121 VOUT VOUT + ADJ C2 100F TTL + 121 1% + 5V 10F 2N3904 1k 1k 100F 365 1% *NEEDED IF DEVICE IS FAR FROM FILTER CAPACITORS R2 __ VOUT=1.25V 1+ R1 ( ) MECHANICAL OUTLINE OM1860STM .420 .410 .200 .190 .045 .035 0.135 MAX. MECHANICAL OUTLINE TO-3 OM1860NKM 1.53 REF. 0.875 MAX. 0.450 0.250 1.197 1.177 0.675 0.655 0.440 0.420 0.188 R. MAX. .150 .140 1 2 3 4 .665 .645 .430 .410 SEATING PLANE .537 .527 0.312 MIN. 0.043 0.038 2 PLCS. 0.225 0.205 0.161 0.151 0.525 R. MAX. .038 MAX. PIN OUT .750 .500 .005 1 2 Case Adjust VIN VOUT MECHANICAL OUTLINE TO-39 .035 .025 .100 TYP. .120 TYP. PIN OUT 1 2 3 4 Adjust VOUT VIN Isolated 3.3 NOTES * Case is metal/hermetically sealed * Isolated Tab OM1860NHM TO-39 Pin 1 Pin 2 Case Adjust Input Output |
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