Voltage Regulator. NTE1911 Datasheet

NTE1911 Regulator. Datasheet pdf. Equivalent

Part NTE1911
Description 3 Terminal Adjustable Negative Voltage Regulator
Feature NTE1911 3 Terminal Adjustable Negative Voltage Regulator –1.2V to –37V, 1.5A Description: The NTE191.
Manufacture NTE
Datasheet
Download NTE1911 Datasheet



NTE1911
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 com-
pensation. 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, program-
mable–output voltage regulation or precision current regulation.
Features:
D Output Voltage Adjustable from –1.2V to –37V
D 1.5A Output Current Guaranteed, –55°C to +150°C
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 +125°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Lead Temperature (Soldering, 10 sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C
Electrical Characteristics: (Note 1)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Line Regulation
Regline TA = +25°C, 3V VI – VO 40V, Note 2 – 0.01 0.04 %/V
3V VI – VO 40V, Note 2
– 0.02 0.07 %/V
Note 1. Unless otherwise noted, these specifications apply: 0° ≤ TJ +125°C, (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 Ther-
mal Regulation specification.



NTE1911
Electrical Characteristics (Contd): (Note 1)
Parameter
Load Regulation
Thermal Regulation
Adjustment Pin Current
Adjustment Pin Current
Change
Reference Voltage
Temperature Stability
Minimum Load Current
Maximum Output Current
Limit
RMS Noise, % of VO
Ripple Rejection Ratio
Long Term Stability
Symbol
Test Conditions
Regload
Regtherm
IAdj
IAdj
Vref
TS
ILmin
Imax
N
RR
S
VO 5V, TA = +25°C, 10mA IO 1.5A
Note 2 10mA IO 3A
VO 5V, TA = +25°C, 10mA IO 1.5A
Note 2 10mA IO 3A
TA = +25°C, Pulse = 10ms
TA = +25°C, 10mA IL 1.5A,
2.5V (VI VO) 40V, P 20W
10mA IO 1.5A, 3V (VI VO) 40V,
P 20W, TA = +25°C, Note 3
10mA IO 1.5A, 3V (VI VO) 40V,
P 20W, Note 3
0° ≤ TJ +125°C
VI VO 10V
VI VO 40V
VI VO 15V, P 20W
VI VO 40V, P 20W, TA = +25°C
TA = +25°C, 10Hz f 10kHz
VO = 10V, f = 120Hz, CAdj = 0
VO = 10V, f = 120Hz, CAdj = 10µF
TA = +125°C, 1000 Hours
Min Typ Max Unit
15 50 mV
20 70 mV
0.3 1.0
0.3 1.5
%
%
0.003 0.04 %VO/W
65 100 µA
0.2 5.0 µA
1.20 1.25 1.30
V
1.213 1.250 1.287 V
0.6 %VO
1.5 6.0 mA
2.5 10 mA
1.5 2.2
A
0.15 0.4
A
0.003
60
%VO
dB
66 77
dB
0.3 1.0 %/1.0k
Note 1. Unless otherwise noted, these specifications apply: 0° ≤ TJ +125°C, (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 Ther-
mal 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
.040 (1.02)
VOUT
1.187 (30.16)
.215 (5.45)
.665
(16.9)
.188 (4.8) R Max
.430
(10.92)
Adjust
.156 (3.96) Dia
(2 Holes)
.525 (13.35) R Max
VIN/Case







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