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| NTE1911 3 Terminal Adjustable Negative Voltage Regulator -1.2V to -37V, 1.5A Description: The NTE1911 is an adjustable 3-terminal negative voltage regulator capable of supplying in excess of 1.5A over an output voltage range of -1.2V to 37V. This regulator is exceptionally easy to apply, requiring only 2 external resistors to set the output voltage and 1 output capacitor for frequency compensation. The circuit design has been optimized for excellent regulation and low thermal transients. Further, if features internal current limiting, thermal shutdown and safe-area compensation, making the, virtually blowout-proof against overloads. The NTE1911 serves a wide variety of applications including local on-card regulation, programmable-output voltage regulation or precision current regulation. Features: D Output Voltage Adjustable from -1.2V to -37V D 1.5A Output Current Guaranteed, -55C to +150C D Line Regulation Typically 0.01%/V D Load Regulation Typically 0.3% D Excellent Thermal Regulation, 0.002%/W D 77dB Ripple Rejection D Excellent Rejection of Thermal Transients D 50ppm/C Temperature Coefficient D Temperature-Independent Current Limit D Internal Thermal Overload Protection Absolute Maximum Ratings: Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20W Input-Output Voltage Differential, VI-O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +125C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Lead Temperature (Soldering, 10 sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300C Electrical Characteristics: (Note 1) Parameter Line Regulation Symbol Regline Test Conditions TA = +25C, 3V VI - VO 40V, Note 2 3V VI - VO 40V, Note 2 Min - - Typ 0.01 0.02 Max 0.04 0.07 Unit %/V %/V Note 1. Unless otherwise noted, these specifications apply: 0 TJ +125C, (VI -VO) = 5V, Pmax = 20W, and IMAX = 1.5A. Note 2. Load and line regulation are specified at constant junction temperature. Pulse testing with a low duty cycle is used. Change in VO because of heating effects is covered under the Thermal Regulation specification. Electrical Characteristics (Cont'd): (Note 1) Parameter Load Regulation Symbol Regload Test Conditions VO 5V, TA = +25C, 10mA IO 1.5A Note 2 10mA IO 3A VO 5V, TA = +25C, 10mA IO 1.5A Note 2 10mA IO 3A Thermal Regulation Adjustment Pin Current Adjustment Pin Current Change Reference Voltage Regtherm TA = +25C, Pulse = 10ms IAdj IAdj Vref TA = +25C, 10mA IL 1.5A, 2.5V (VI - VO) 40V, P 20W 10mA IO 1.5A, 3V (VI - VO) 40V, P 20W, TA = +25C, Note 3 10mA IO 1.5A, 3V (VI - VO) 40V, P 20W, Note 3 Temperature Stability Minimum Load Current Maximum Output Current Limit RMS Noise, % of VO Ripple Rejection Ratio Long Term Stability TS ILmin Imax N RR S 0 TJ +125C VI - VO 10V VI - VO 40V VI - VO 15V, P 20W VI - VO 40V, P 20W, TA = +25C TA = +25C, 10Hz f 10kHz VO = 10V, f = 120Hz, CAdj = 0 VO = 10V, f = 120Hz, CAdj = 10F TA = +125C, 1000 Hours Min - - - - - - - 1.20 Typ 15 20 0.3 0.3 0.003 65 0.2 1.25 Max 50 70 1.0 1.5 0.04 100 5.0 1.30 1.287 - 6.0 10 - - - - - 1.0 Unit mV mV % % %VO/W A A V V %VO mA mA A A %VO dB dB %/1.0k 1.213 1.250 - - - 1.5 0.15 - - 66 - 0.6 1.5 2.5 2.2 0.4 0.003 60 77 0.3 Note 1. Unless otherwise noted, these specifications apply: 0 TJ +125C, (VI -VO) = 5V, Pmax = 20W, and IMAX = 1.5A. Note 2. Load and line regulation are specified at constant junction temperature. Pulse testing with a low duty cycle is used. Change in VO because of heating effects is covered under the Thermal Regulation specification. Note 3. CAdj, when used, is connected between the adjustment pin and GND. .135 (3.45) Max .350 (8.89) .875 (22.2) Dia Max Seating Plane .312 (7.93) Min VOUT .215 (5.45) .040 (1.02) 1.187 (30.16) .665 (16.9) .188 (4.8) R Max .156 (3.96) Dia (2 Holes) .430 (10.92) Adjust .525 (13.35) R Max VIN/Case |
Price & Availability of NTE1911
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