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| OM7621NM OM7622NM OM7623NM OM7624NM SURFACE MOUNT LOW DROPOUT POSITIVE ADJUSTABLE REGULATORS Three Terminal Adjustable Low Dropout 7.5A, 5A, 3A, 1.5A Positive Voltage Regulators FEATURES * * * * * * * Surface Mount Hermetic Package Operates Down to 1V Dropout, 1.5V @ Max. Current .015% Typical Line Regulation .01% Typical Load Regulation 1% Reference Voltage Electrically Equivalent to LT1083, 84, 85 and 86 Available Hi-Rel Screened DESCRIPTION These three terminal positive adjustable voltage regulators in surface mount package are designed to provide 7.5A, 5A, 3A, and 1.5A with higher efficiency than conventional voltage regulators. The devices are designed to operate to 1 Volt input to output differential and the dropout voltage is specified as a function of load current. These devices are ideally suited for Military applications where surface mount, small size, hermeticity and high reliability are required. ABSOLUTE MAXIMUM RATINGS Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 V Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C Output Current - OM7621NM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.0 A OM7622NM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 A OM7623NM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 A OM7624NM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A a PIN CONNECTION 1 2 MECHANICAL OUTLINE .140 .500 .015 .075 .157 .140 .140 .075 3.5 .030 MIN. Pin 1: VIN Pin 2: Adjust 3 .625 .415 Pin 3: VOUT .062 .375 TOP VIEW SIDE VIEW BOTTOM VIEW 4 11 R1 Supersedes 1 05 R0 3.5 - 109 OM7621NM - OM7624NM ELECTRICAL CHARACTERISTICS TJ = -55C to + 125C Parameter Reference Voltage Conditions IOUT = 10 mA, Tj = 25C (VIN - VOUT) = 3 V 10mA IOUT IFULL LOAD 1.5 V (VIN - VOUT) 25 V (Note 3) Line Regulation ILOAD = 10 mA, 1.5 V (VIN - VOUT) 15 V, Tj = 25C 1.238 1.262 V Min. Typ. Max. Units * 1.220 1.270 0.25 V % % 15 V (VIN - VOUT ) 35 V (Notes 1 & 2) Load Regulation (VIN - VOUT) = 3 V 10 mA IOUT IFULL LOAD Tj = 25C (Notes 1, 2, & 3) Dropout Voltage Current Limit OM7621NM (VIN - VOUT) = 5 V (VIN - VOUT) = 25 V OM7622NM (VIN - VOUT) = 5 V (VIN - VOUT) = 25 V OM7623NM (VIN - VOUT) = 5 V (VIN - VOUT) = 25 V OM7624NM (VIN - VOUT) = 5 V (VIN - VOUT ) = 25 V Minimum Load Current Thermal Regulation OM7621NM OM7622NM OM7623NM OM7624NM Ripple Rejection f = 120 Hz CADJ = 25 F Tantalum IOUT - IFULL LOAD (VIN - VOUT) = 3 V Adjust Pin Current Adjust Pin Current Change TJ = 25C 10mA IOUT IFULL LOAD 1.5 V (VIN - VOUT) 25 V Temperature Stability Long Term Stability -55C TJ +150C TA = 125C, 1000 Hrs. Junction-to-Case OM7621NM OM7622NM (VIN - VOUT) = 25 V TA = 25C, 30 ms pulse VREF = 1%, IOUT = IFULL LOAD * 0.55 % 0.9 % % V * * * * * * * * * * * 8.0 0.4 5.5 0.3 3.2 0.2 1.5 0.08 1.1 1.5 A A A A A A A A 20 mA 0.01 .015 0.02 0.05 %/W %/W %/W %/W 60 80 dB A * 5 1.5 1 A % % Thermal Resistance 2.1 3.1 4.1 5.3 225 C C/W C/W C/W C/W 3.5 Lead Temperature 5 Seconds at Case OM7623NM OM7624NM Note 1: Load and line regulation are measured at a constant junction temperature by low duty cycle pulse testing. Note 2: Line and load regulation are guaranteed up to the maximum power dissipation (OM7621/60W, OM7622/45W, OM7623/30W, OM7624/15W). Power dissipation is determined by the input/output differential and the output current. Guaranteed maximum power dissipation will not be available over the full input/output voltage range. Note 3: IFULL LOAD curve is defined as the minimum value of current limit as a function of input to output voltage. Note that power dissipation is only achievable over a limited range of input to output voltage. Note 4: Dropout voltage is specified over the full output current range of the device. The * denotes the specifications which apply over the full operating temperature range. |
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