OM3910STM/NTM OM3911STM/NTM 3.0 AMP POSITIVE ADJUSTABLE VOLTAGE REGULATOR APPROVED TO DESC DRAWING 5962-87675 Three Terminal, Adjustable Voltage, 3.0 Amp Precision Positive Regulator In Hermetic JEDEC TO-257AA Package FEATURES • Approved To DESC Standardized Military Drawing 5962-8767501UX/TX and 5962-8767502UX/TX • Isolated Hermetic Package, JEDEC TO-257AA Outline • Reference Voltages Set To ±1% and ±2% • Built-In Thermal Overload Protection • Short Circuit Current Limiting • Similar Electrically To Industry Standard LM150A DESCRIPTION These three terminal positive regulators approved by DESC, are supplied in a hermetically sealed isolated, metal TO-257 package. All protective features are designed into the circuit including thermal shutdown, current limiting and safearea control. With heat sinking, they can deliver over 3.0 amps of output current. These units feature 1% and 2% initial voltage tolerance, 0.35% load regulation and .01% line regulation. ABSOLUTE MAXIMUM RATINGS @ 25°C Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +35 V Operating Junction Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65°C to + 150°C Typical Power/Thermal Characteristics: Rated Power @ 25°C TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 W TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 W Thermal Resistance: qJC Case U. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2°C/W qJC Case T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5°C/W qJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50°C/W a 4 11 R1 Supersedes 2 07 R0 DESC DRAWING REFERENCE VOLTAGE OMNIREL PART NUMBER 5962-8767501UX 5962-8767502UX 5962-8767501TX 5962-8767502TX ±2% ±1% ±2% ±1% OM3910STM OM3911STM OM3910NTM OM3911NTM 3.3 - 113 3.3 OM3910STM/NTM OM3911STM/NTM ELECTRICAL CHARACTERISTICS Test Symbol Reference Voltage VREF Line Regulation RLINE (Note 2) -55°C TA 125°C (Note 1) unless otherwise specified Conditions Dash No. RLOAD (Note 2) IOUT = 10mA 01 1.20 1.30 V 02 1.238 1.262 V 3.0V (VIN - VOUT) 35V, P 30W 01 1.20 1.30 V 10mA IOUT 3.0A (Note 2) 02 1.225 1.270 V 3.0V (VIN - VOUT) 35V, All 0.01 %/V IOUT = 10mA, TJ = 25°C P/N’s 3.0V (VIN - VOUT) 35V, All 0.05 %/V 17.5 mV 50 mV 0.35 % 1.0 % 0.01 %/W P/N’s 10mA IOUT 3.0A, VOUT 5.0A, TJ = 25°C 10mA IOUT 3.0A, VOUT 5.0A VOUT 5.0A, TJ = 25°C 10mA IOUT 3.0A, VOUT 5.0A Ripple Rejection RN (Note 3) All P/N’s All P/N’s 10mA IOUT 3.0A, Thermal Regulation Unit TA = 25°C IOUT = 10mA Load Regulation Limits Min. Max. All P/N’s All P/N’s 20ms pulse, TA =25°C All P/N’s VOUT = 10V, f = 120Hz All CADJ = 10µF 66 dB P/N’s Adjust Pin Current IAdj Adjust Pin ³IAdj 10mA IOUT 3.0A, IOUT = 10mA Miminum Load Current IMIN (VIN - VOUT) = 35V All P/N’s Current Limit ICL (VIN - VOUT) 10V All P/N’s 3.0 A (VIN - VOUT) = 30V All P/N’s 0.3 A Current Change 3.0V (VIN - VOUT) 35V All P/N’s 100 µA All 5.0 µA 5.0 mA P/N’s Notes: 1. Unless otherwise specified, these specifications apply for (VIN - VOUT) = 5.0V and IOUT = 1.5A. 2. Regulation is measured at a constant junction temperature using a pulse technique. Changes in output voltage due to heating effects are covered under the specification for thermal regulation. 3. Guaranteed if not tested to the limits specified. 3.3 3.3 - 114 OM3910STM/NTM OM3911STM/NTM TYPICAL PERFORMANCE CHARACTERISTICS CURRENT LIMIT LOAD REGULATION IOUT = 3A 0.1 0.2 0.3 0.4 65 TJ = -55°C 4 TJ = 150°C TJ = 25°C 2 0 0 10 15 20 25 30 55 50 45 40 35 30 -75 35 TEMPERATURE STABILITY DROPOUT VOLTAGE -25 25 75 TEMPERATURE (°C) 125 MINIMUM OPERATING CURRENT 1.27 5 2.5 IOUT = 3A IOUT = 2A 2 1.5 IOUT = 20mA 1 0.5 -75 -25 25 75 MINIMUM IOUT CURRENT (mA) VOUT = 100mV REFERENCE VOLTAGE (V) 1.26 1.25 1.24 40 VIN - VOUT = 5V IOUT = 500mA f = 120Hz TI = 25°C 10 15 20 25 30 OUTPUT VOLTAGE (V) 35 20 25 30 35 40 CADJ = 10µF 80 60 CADJ = 0 40 V = 15V 20 VIN = 10V OUT IOUT = 500mA 0 10 OUTPUT IMPEDANCE 100 1k 10k 100k 1M OUTPUT VOLTAGE DEVIATION (V) CADJ = 0 COUT = 0 0.1 1.5 VOUT = 10V IOUT = 50mA TI = 25°C 1 0.5 COUT = 0, CADJ = 0 0 60 CADJ = 0 VIN = 15V VOUT = 10V f = 120Hz TCASE = 25°C 50 40 0.1 0.001 VIN = 15V VOUT = 10V IOUT = 500mA 1M 1 OUTPUT CURRENT (A) 1.5 COUT = 0, CADJ = 0 1 COUT = 1µF 0.5 CADJ = 10µF 0 VIN = 15V VOUT = 10V PRELOAD = 100mA TI = 25°C -0.5 -1 -1.5 -1 1 0.5 0 0 10 20 TIME (µs) 3.3 - 115 30 40 10 LOAD TRANSIENT RESPONSE LOAD CURRENT (A) CADJ = 10µF COUT = 10µF INPUT VOLTAGE CHANGE (V) -0.5 COUT = 1µF, CADJ = 10µF 0.01 1k 10k 100k FREQUENCY (Hz) 70 LINE TRANSIENT RESPONSE 1 100 15 RIPPLE REJECTION FREQUENCY (Hz) 10 0.0001 10 10 80 RIPPLE REJECTION (dB) RIPPLE REJECTION (dB) CADJ = 0 5 5 INPUT-OUTPUT DIFFERENTIAL (V) CADJ = 10µF 80 0 TJ = -55°C 1 0 100 CADJ = 10µF 0 2 RIPPLE REJECTION RIPPLE REJECTION 100 20 TJ = 25°C 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 60 TJ = 150°C 3 0 1.23 -50 -25 125 4 OUTPUT VOLTAGE DEVIATION (V) INPUT-OUTPUT DIFFERENTIAL (V) 5 60 INPUT-OUTPUT DIFFERENTIAL (V) 3 RIPPLE REJECTION (dB) ADJUSTMENT CURRENT (µA) OUTPUT CURRENT (A) VOLTAGE CHANGE (PERCENT) 0 0.5 -75 -50 -25 0 25 50 75 100 125 150 TEMPERATURE (°C) OUTPUT IMPEDANCE (OHMS) ADJUSTMENT CURRENT 6 1.0 1.5 1 0.5 0 0 10 20 TIME (µs) 30 40 3.3 OM3910STM/NTM OM3911STM/NTM TYPICAL APPLICATIONS 1.2 - 25V Adjustable Regulator VIN Improving Ripple Rejection ADJ. R1 240 C1* 1µF 0.5 VIN VOUT‡ VOUT VIN C2† 1µf * Needed if device is far from filter capacitors ‡ VOUT = 1.25V (1 + † Optional – improves transient response R1 121 1% Remote Sensing VIN VOUT ADJ. 2k 7 2k 6 + RD (Max. Drop 300mV) VIN 15k 1% VOUT 5V ADJ. VIN 3 7 25 LT 1001 2 – 2.5V 4 LT 1009 500 * C, Improves ripple rejection XC should be small compared to R2 R2 ) R1 +10V VIN 1K ADJ. CL 10µf* Precision High Current Reference VIN VOUT + R2 365 1% R2 5k VIN 5V VOUT ADJ. 1µF + Adjustable Current Limiter 121 6 2 – LM301A 1 3 + 1k RL 8 4.99k 1% 4 365 100µF + 5µF – RET RETURN MECHANICAL OUTLINE CONNECTION DIAGRAM .200 .190 .420 .410 3.3 25 .045 .035 Tab .665 .645 .150 .140 .537 .527 .430 .410 .038 MAX. .750 .500 .035 .025 .100 TYP. NOTES: • Case is metal/hermetically sealed • Isolated Tab .005 .120 TYP. 1 2 3 CASE U FRONT VIEW Pin 1: Adjust Pin 2: VOUT Pin 3: VIN Tab: Isolated 205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246 CASE T FRONT VIEW Pin 1: Adjust Pin 2: VOUT Pin 3: VIN Tab: VOUT