OM7637SM

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 Reference Voltage Symbol VREF Conditions IOUT = 10mA TA = 25°C -55°C ≤ TA ≤ 125°C (Note 1) unless otherwise specified Limits Min. 1.20 Max. 1.30 V Unit 3.0V ≤ (VIN - VOUT) ≤ 35V, P ≤ 30W 10mA ≤ IOUT ≤ 3.0A (Note 2) Line Regulation (Note 2) ∆VOUT ∆VIN 3.0V ≤ (VIN - VOUT) ≤ 35V, IOUT = 10mA, TJ = 25°C 3.0V ≤ (VIN - VOUT) ≤ 35V, IOUT = 10mA Load Regulation (Note 2) ∆VOUT ∆IOUT 10mA ≤ IOUT ≤ 3.0A, 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 Ripple Rejection (Note 3) Adjust Pin Current Adjust Pin Current Change Miminum Load Current Current Limit IMIN ICL ∆VIN ∆VREF IAdj ∆IAdj 10mA ≤ IOUT ≤ 3.0A, IOUT = 10mA 3.0V ≤ (VIN - VOUT) ≤ 35V (VIN - VOUT) = 35V (VIN - VOUT) ≤ 10V (VIN - VOUT) = 30V 20ms pulse, TA =25°C VOUT = 10V, f = 120Hz CADJ = 10µF 1.20 1.30 V 0.01 %/V 0.05 %/V 17.5 mV 50 mV 0.35 % 1.0 % 0.01 66 %/W dB 100 5.0 µA µA 5.0 3.0 0.3 mA A 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 .425 PIN CONNECTION 3.5 .200 2 .100 .425 .035 WIDE FLAT 3 PLCS. 1 3 .350 MIN. ± .020 .115 .160 Pin 1: Pin 2: Pin 3: Case: VOUT Adjust VIN Isolated .020 .080