OM7637SM SURFACE MOUNT POSITIVE ADJUSTABLE 3.0 AMP VOLTAGE REGULATOR Isolated Hermetic Surface Mount Package 3.0 Amp, Positive Adjustable Voltage Regulator FEATURES • • • • • • Isolated Hermetic Surface Mount Package Reference Voltage Set To ±2% (±1% Available) Built-In Thermal Overload Protection Short Circuit Current Limiting Product Is Available Hi-Rel Screened Electrically Similar To Industry Standard Type LM150A DESCRIPTION These three terminal positive regulators are supplied in a hermetic metal surface mount package. All protective features are designed into the circuit including thermal shutdown, current limiting and safe-area control. With heat sinking, they can deliver over 3.0 amps of output current. These units feature 2% initial voltage tolerance, with 0.3% load regulation and .01% line regulation. ABSOLUTE MAXIMUM RATINGS @ 25°C Input to Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +35V Operating Junction Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C Typical Power/Thermal Characteristics: Rated Power @ 25°C TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25W TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W Thermal Resistance: θJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2°C/W θJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W Lead Temperature at Case (5 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225°C 3.5 Note: For ±1% device, add letter “A” in front of part number (e.g. OMA7637SM). 4 11 R1 Supersedes 1 05 R0 3.5 - 131 OM7637SM ELECTRICAL CHARACTERISTICS Test Symbol Reference Voltage VREF -55°C ≤ TA ≤ 125°C (Note 1) unless otherwise specified Conditions Limits IOUT = 10mA Unit Min. Max. 1.20 1.30 V 1.20 1.30 V 0.01 %/V 0.05 %/V 17.5 mV 50 mV 0.35 % 1.0 % 0.01 %/W TA = 25°C 3.0V ≤ (VIN - VOUT) ≤ 35V, P ≤ 30W 10mA ≤ IOUT ≤ 3.0A (Note 2) Line Regulation ∆VOUT (Note 2) ∆VIN 3.0V ≤ (VIN - VOUT) ≤ 35V, IOUT = 10mA, TJ = 25°C 3.0V ≤ (VIN - VOUT) ≤ 35V, IOUT = 10mA Load Regulation ∆VOUT 10mA ≤ IOUT ≤ 3.0A, (Note 2) ∆IOUT VOUT ≤ 5.0A, TJ = 25°C 10mA ≤ IOUT ≤ 3.0A, VOUT ≤ 5.0A 10mA ≤ IOUT ≤ 3.0A, VOUT ≥ 5.0A, TJ = 25°C 10mA ≤ IOUT ≤ 3.0A, VOUT ≥ 5.0A Thermal Regulation 20ms pulse, TA =25°C Ripple Rejection ∆VIN (Note 3) ∆VREF Adjust Pin Current IAdj Adjust Pin ∆IAdj Current Change VOUT = 10V, f = 120Hz 66 dB CADJ = 10µF 10mA ≤ IOUT ≤ 3.0A, IOUT = 10mA 100 µA 5.0 µA 5.0 mA 3.0V ≤ (VIN - VOUT) ≤ 35V Miminum Load Current IMIN (VIN - VOUT) = 35V Current Limit ICL (VIN - VOUT) ≤ 10V 3.0 A (VIN - VOUT) = 30V 0.3 A Notes: 1. Unless otherwise specified, these specifications apply for (VIN - VOUT) = 5.0V and IOUT = 1.5A. Although power dissipation is internally limited, these characteristics are applicable for power dissipation up to 30W. 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. MECHANICAL OUTLINE PIN CONNECTION .425B 2 B 1 .100B .200B .425B B 3.5 .035 WIDEB FLAT 3 PLCS.B B .350 MIN.B B 3 ± .020B .115B .160B .020B .080 B Pin 1: Pin 2: Pin 3: Case: VOUT Adjust VIN Isolated