OM7626NM SURFACE MOUNT POSITIVE ADJUSTABLE VOLTAGE REGULATOR Three Terminal, Adjustable Voltage, 1.0 Amp Precision Positive Regulator In Hermetic Surface Mount Package FEATURES • • • • • • Surface Mount Hermetic Package Adjustable Output Voltage Built-In Thermal Overload Protection Short Circuit Current Limiting Product Is Available Hi-Rel Screened Electrically Similar To Industry Standard Type LM117 DESCRIPTION This three terminal negative regulator is supplied in a hermetically sealed 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 1.0 amp of output current. This unit features output voltages that can be trimmed using external resistors, from 1.2 volts to 37 volts. ABSOLUTE MAXIMUM RATINGS Input to Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.5W TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W Thermal Resistance: θJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5°C/W θJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W Lead Temperature at Case (5 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225°C PIN CONNECTION MECHANICAL OUTLINE .140 1 2 .015 .500 .075 .075 .157 .030 MIN. Pin 1: Adjust Pin 2: VIN 3 .625 .415 Pin 3: VOUT .062 TOP VIEW 4 11 R1 Supersedes 1 05 R0 3.5 - 113 SIDE VIEW 3.5 .140 .140 .375 BOTTOM VIEW OM7626NM ELECTRICAL CHARACTERISTICS -55°C ≤ TA ≤ 125°C, IL = 8mA (unless otherwise specified) Parameter Symbol Test Conditions Min. Max. Reference Voltage VREF VDIFF = 3.0V, TA = 25°C 1.20 1.30 • • 1.20 1.30 1.20 1.30 -9 9 • -23 23 -15 15 -15 15 -15 15 VDIFF = 3.3V VDIFF = 40V Line Regulation RLINE (Note 1) Load Regulation 3.0V ≤ VDIFF ≤ 40V, Vout = Vref, TA = 25°C 3.3V ≤ VDIFF ≤ 40V, Vout = Vref RLOAD (Note 1) VDIFF = 3.0V, 10mA ≤ IL ≤ 1.5A, TA = 25°C • VDIFF = 3.3V, 10mA ≤ IL ≤ 1.5A VDIFF = 40V, 10mA ≤ IL ≤ 300mA, TA = 25°C • VDIFF = 40V, 10mA ≤ IL ≤ 195mA Thermal Regulation VRTH Vin = 14.6V, IL = 1.5A -15 15 -16 16 Unit V mV mV mV Pd = 20 Watts, t = 20 ms, TA =25°C Ripple Rejection RN (Note 2) Adjustment Pin Current • f = 120 Hz, Vout = Vref IAdj 100 • • VDIFF = 40V ∆IAdj Current Change 100 VDIFF = 3.3V, 10mA ≤ IL ≤ 1.5A VDIFF = 40V, 10mA ≤ IL ≤ 195mA • • • 3.0V ≤ VDIFF ≤ 40V, TA = 25°C • 3.3V ≤ VDIFF ≤ 40V ILmin ICL 5 -5 5 -5 5 -5 5 -5 5 -5 µA 5 5.0 • • • VDIFF = 40V, VOUT = 1.4V (forced) (Note 2) -5 VDIFF = 3.0V, VOUT = 1.4V (forced) VDIFF = 3.3V, VOUT = 1.4V (forced) Current Limit µA 100 VDIFF = 3.0V, 10mA ≤ IL ≤ 1.5A, TA = 25°C VDIFF = 40V, 10mA ≤ IL ≤ 300mA, TA = 25°C Miminum Load Current dB VDIFF = 3.0V, TA = 25°C VDIFF = 3.3V Adjustment Pin 66 CAdj = 10 µF, Iout = 100 mA VDIFF = 15V 5.0 mA 5.0 VDIFF = 40V, TA = 25°C 1.5 3.5 0.18 1.5 A Notes: 1. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used. Changes in output voltage due to heating effects must be taken into account separately. 2. If not tested, shall be guaranteed to the specified limits. 3. The • denotes the specifications which apply over the full operating temperature range. STANDARD APPLICATION * Cin is required if regulator is located an appreciable distance from power supply filter. 3.5 VIN VOUT OM7626NM ** Co is not needed for stability, however it does improve transient response. VOUT = 1.25 V (1 + R2) + IADJ R2 R1 Since I ADJ is controlled to less than 100 µA, the error associated with this term is negligible in most applications. IADJ Adjust CIN* 0.1 µF R2 R1 240 + CO** 1.0 µF