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| NTE1942 Integrated Circuit Positive Adjustable Voltage Regulator, 2.85V to 36V, 2A Description: The NTE1942 is an integrated circuit for voltage and current programmable regulation. Current limiting, power limiting, thermal shutdown, and input overvoltage protection (up to 60V) make the NTE1942 virtually blowout proof. The NTE1942 can be used to replace fixed voltage regulators when high output voltage precision is required. Features: D Adjustable Output Current Up to 2A (Guaranteed Up to TJ = +150C) D Adjustable Output Voltage Down to 2.85V D Input Overvoltage Protection (Up to 60V, 10ms) D Short Circuit Protection D Output Transistor S.O.A. Protection D Thermal Overload Protection D Low Bias Current On Regulation Terminal D Low Standby Current Drain Absolute Maximum Ratings: DC Input Voltage, Vi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V Peak Input Voltage (10ms), Vi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60V In-Out Operating Differential Voltage, Vi-o . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32V Output Current, Io . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . internally limited Power Dissipation, Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . internally limited Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +150C Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -25 to +150C Maximum Thermal Resistance, Junction-to-Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3C/W Maximum Thermal Resistance, Junction-to-Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . +50C/W Electrical Characteristics: (TJ = -25 to +150C unless otherwise specified) Parameter GENERAL Quiescent Drain Current (Pin3) Output Noise Voltage Reference Voltage (Pin4) Average Temperature Coefficient of Reference Voltage Output Voltage Range Voltage Load Regulation Supply Voltage Rejection Ratio Line Regulation Output Impedance Drop-out Voltage between Pin1 and Pin5 Bias Current at Pin4 Average Temperature Coefficient (Pin4) Current Limit Sense Voltage between Pin5 and Pin2 Average Temperature Coefficient of VSC Current Load Regulation Io Io Vi = 10V, V o = 3V Io = 0.5A Io = 1.0A Io = 1.5A Short Circuit Current Isc Vi - Vo = 14V, Pin2 and Pin5 short circuited I4 I4 TDI4 VSC Vi = 10V, Vo = Vref, TJ = +25C Id eN Vref Vref T Vo Vo Vo SVR Vi Vo Zo Vi = 20V, TJ = +25C Vo = Vref, Io = 10mA, B = 1MHz Vi = 20V, Io = 10mA, TJ = +25C Vi = 20V, TJ = -25 to +125C Io = 10mA TJ = +125 to +150C Io = 10mA, TJ = +25C Io =2.0A, Note 1 Io =1.5A, Note 1 Vo = 5V, Io = 500mA, Vi = 100Vpp, f = 100Hx, Note 2 Vo = 5V, Io = 500mA, Vi = 8V to 18V, TJ = +25C Vi = 10V, Vo = Vref, Io = 0.5A, f = 100Hz Io = 1.5A, Vo 2% Vo - - - - - 2.65 - - 2.85 - - 60 54 4.2 80 2.77 -0.25 -1.5 - 0.15 1.0 70 70 1.5 x 10-3 2.0 3 -0.5 2.5 10 - 9.2 - 2.85 - - 36 1.0 0.5 - - mA V V mV/C mV/C V % % dB dB V A %/C Symbol Test Conditions Min Typ Max Unit VOLTAGE REGULATION LOOP TJ = +25C CURRENT REGULATION LOOP - 0.45 - V - - - - 2.0 0.03 1.4 1.0 0.9 2.5 - - - - 3.6 %/C % % % A Note 1. A load step of 2A can be applied provided that the input-output differential voltage is lower than 20V. Note 2. The same performance can be maintained at higher output levels if a bypassing capacitor is provided between Pin2 and Pin4. Pin Connection Diagram VIN Limiting VOUT Reference GND .408 (10.37 Max .114 (2.9) 0.45 (1.37) Max .619 (15.72) Max .896 (22.76) Max .364 (9.25) Max .850 (21.6) Max .135 (3.45) 1 2 3 4 5 .150 (3.81) .182 (4.62) .182 (4.62) Max |
Price & Availability of NTE1942
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