NTE1961, NTE1963, NTE1965, NTE1967,
NTE1971, NTE1973, NTE1975, NTE1977
Integrated Circuit
Negative, 3–Terminal Voltage Regulator
Description:
The NTE1961 through NTE1977 series of monolithic 3–terminal negative voltage regulators employ
internal current limiting, thermal shut–down, and safe–area compensation in an isolated TO220 type
package making them essentially indestrucible. If adequate heat sinking is provided, they can deliver
over 1A output current. These devices are intended for use as fixed voltage regulators in a wide range
of applications including local (on card) regulation for elimination of distribution problems associated
with single point regulation. In addition to use as fixed voltage regulators, they can be used with exter-
nal components to obtain adjustable output voltages and currents.
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Input Voltage, VIN
NTE1961, NTE1963, NTE1965, NTE1967, NTE1971, NTE1973 –35V. . . . . . . . . . . . . . . . . . .
NTE1975, NTE1977 –40V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation (TC ≤ +70°C), PD16W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Junction Temperature Range, TJ–30° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Ambient Temperature Range, Topr –30° to +75°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, Tstg –40° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance, Junction–to–Ambient, RthJA 60°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance, Junction–to–Case, RthJC 5°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics: (TJ = +25°C, CI = 2.2µF, CO = 0.1µF, Note 1 unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Output Voltage
NTE1961 VOUT VIN = –10V, IO = 0.5A –4.8 –5.0 –5.25 V
NTE1963 VIN = –11V, IO = 0.5A –5.75 –6.0 –6.25 V
NTE1965 VIN = –14V, IO = 0.5A –7.7 –8.0 –8.3 V
NTE1967 VIN = –15V, IO = 0.5A –8.65 –9.0 –9.35 V
NTE1971 VIN = –19V, IO = 0.5A –11.5 –12.0 –12.5 V
NTE1973 VIN = –23V, IO = 0.5A –14.4 –15.0 –15.6 V
NTE1975 VIN = –27V, IO = 0.5A –17.3 –18.0 –18.7 V
NTE1977 VIN = –33V, IO = 0.5A –23.0 –24.0 –25.0 V
Note 1. Measurement is to be conducted in pulse testing.
Electrical Characteristics (Cont’d): (TJ = +25°C, CI = 0.33µF, CO = 0.1µF, Note 1 unless otherwise
specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Quiescent Current
NTE1961 IQVIN = –10V, IO = 0mA –4.2 6.0 mA
NTE1963 VIN = –11V, IO = 0mA –4.3 6.0 mA
NTE1965 VIN = –14V, IO = 0mA –4.3 6.0 mA
NTE1967 VIN = –15V, IO = 0mA –4.3 6.0 mA
NTE1971 VIN = –19V, IO = 0mA –4.3 6.0 mA
NTE1973 VIN = –23V, IO = 0mA –4.4 6.0 mA
NTE1975 VIN = –27V, IO = 0mA –4.5 6.0 mA
NTE1977 VIN = –33V, IO = 0mA –4.6 6.0 mA
Load Regulation
NTE1961 ∆VO – IOVIN = –10V, IO = 0.005 to 1.5A –15 50 mV
NTE1963 VIN = –11V, IO = 0.005 to 1.5A –15 60 mV
NTE1965 VIN = –14V, IO = 0.005 to 1.5A –15 80 mV
NTE1967 VIN = –15V, IO = 0.005 to 1.5A –15 90 mV
NTE1971 VIN = –19V, IO = 0.005 to 1.5A –25 120 mV
NTE1973 VIN = –23V, IO = 0.005 to 1.5A –35 150 mV
NTE1975 VIN = –27V, IO = 0.005 to 1.5A –55 180 mV
NTE1977 VIN = –33V, IO = 0.005 to 1.5A –65 240 mV
Line Regulation
NTE1961 ∆VO – VIN VIN = –7V to –25V, IO = 0.5A –350 mV
NTE1963 VIN = –8V to –25V, IO = 0.5A –560 mV
NTE1965 VIN = –10.5V to –25V, IO = 0.5A –680 mV
NTE1967 VIN = –11.5V to –25V, IO = 0.5A –790 mV
NTE1971 VIN = –14.5V to –30V, IO = 0.5A –10 120 mV
NTE1973 VIN = –17.5V to –30V, IO = 0.5A –11 150 mV
NTE1975 VIN = –21V to –33V, IO = 0.5A –15 180 mV
NTE1977 VIN = –27V to –38V, IO = 0.5A –18 240 mV
Ripple Rejection
NTE1961 RR VIN = –10V, IO = 0.5A, ein = 2VP–P
, f = 120Hz 68 78 –dB
NTE1963 VIN = –11V, IO = 0.5A, ein = 2VP–P
, f = 120Hz 65 75 –dB
NTE1965 VIN = –14V, IO = 0.5A, ein = 2VP–P
, f = 120Hz 62 72 –dB
NTE1967 VIN = –15V, IO = 0.5A, ein = 2VP–P
, f = 120Hz 62 72 –dB
NTE1971 VIN = –19V, IO = 0.5A, ein = 2VP–P
, f = 120Hz 62 71 –dB
NTE1973 VIN = –23V, IO = 0.5A, ein = 2VP–P
, f = 120Hz 60 70 –dB
NTE1975 VIN = –27V, IO = 0.5A, ein = 2VP–P
, f = 120Hz 59 69 –dB
NTE1977 VIN = –33V, IO = 0.5A, ein = 2VP–P
, f = 120Hz 56 66 –dB
Output Noise Voltage
NTE1961 VNO VIN = –10V, BW = 10Hz to 100kHz, IO = 0.5A –45 –µV
NTE1963 VIN = –11V, BW = 10Hz to 100kHz, IO = 0.5A –45 –µV
NTE1965 VIN = –14V, BW = 10Hz to 100kHz, IO = 0.5A –55 –µV
NTE1967 VIN = –15V, BW = 10Hz to 100kHz, IO = 0.5A –60 –µV
NTE1971 VIN = –19V, BW = 10Hz to 100kHz, IO = 0.5A –75 –µV
NTE1973 VIN = –23V, BW = 10Hz to 100kHz, IO = 0.5A –90 –µV
NTE1975 VIN = –27V, BW = 10Hz to 100kHz, IO = 0.5A –100 –µV
NTE1977 VIN = –33V, BW = 10Hz to 100kHz, IO = 0.5A –120 –µV
Note 1. Measurement is to be conducted in pulse testing.
Electrical Characteristics (Cont’d): (TJ = +25°C, CI = 0.33µF, CO = 0.1µF, Note 1 unless otherwise
specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Average Temperature
Coefficient of Output Voltage
NTE1961 VNO VIN = –10V, IO = 0.5A – –0.5 –mV/°C
NTE1963 VIN = –11V, IO = 0.5A – –0.6 –mV/°C
NTE1965 VIN = –14V, IO = 0.5A – –0.8 –mV/°C
NTE1967 VIN = –15V, IO = 0.5A – –0.9 –mV/°C
NTE1971 VIN = –19V, IO = 0.5A – –1.2 –mV/°C
NTE1973 VIN = –23V, IO = 0.5A – –1.5 –mV/°C
NTE1975 VIN = –27V, IO = 0.5A – –1.8 –mV/°C
NTE1977 VIN = –33V, IO = 0.5A – –2.4 –mV/°C
Note 1. Measurement is to be conducted in pulse testing.
.402 (10.2) Max
.224 (5.7) Max
.295
(7.5)
.165
(4.2)
.669
(17.0)
Max
.531
(13.5)
Min
.100 (2.54) .059 (1.5) Max
.114 (2.9) Max
.173 (4.4) Max
GND VIN VOUT
.122 (3.1)
Dia
NOTE: Tab is isolated
