Voltage Regulator. NTE1927 Datasheet

NTE1927 Regulator. Datasheet pdf. Equivalent

Part NTE1927
Description Integrated Circuit 4-Terminal Negative Adjustable Voltage Regulator
Feature NTE1927 Integrated Circuit 4–Terminal Negative Adjustable Voltage Regulator Description: The NTE1927.
Manufacture NTE
Datasheet
Download NTE1927 Datasheet




NTE1927
NTE1927
Integrated Circuit
4–Terminal Negative Adjustable
Voltage Regulator
Description:
The NTE1927 is a 4–terminal negative adjustable voltage regulator in a TO3 type package designed
to deliver continuous load currents of up to 1A with a maximum input voltage of –40V.
Features:
D Output Current in Excess of 1A
D Negative Output –30V to –2.2V
D Internal Thermal Overload Protection
D Internal Short Circuit Protection
D Output Transistor Safe–Area Protection
Absolute Maximum Ratings:
Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40V
Control Pin Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –VOUT –V 0
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Operating Junction Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to 150°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Lead Temperature (During Soldering, 60sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C
Electrical Characteristics: (0° ≤ TJ +125°C, VIN = –10V, IOUT = 500mA, CIN = 2µF,
COUT = 1µF, Note 1, Note 2 unless otherwise specified)
Parameter
Test Conditions
Min Typ Max
Unit
Input Voltage Range
Nominal Output Voltage
Range
TJ = +25°C
VIN = VOUT – 5V
–40 – –7.0
–30 – –2.23
V
V
Output Voltage Tolerance
VOUT – 15V VIN VOUT – 3V,
5mA IOUT 1A, PD 15W,
IIN(max) = –38V
TJ = +25°C
– – 4.0 % (VOUT)
– – 5.0 % (VOUT)
Note 1. VOUT is defined as:
VOUT =
R1 + R2
R2
(–2.23)
Note 2. The convention for negative regulators in the algabraic value, thus –15V is less than –10V.



NTE1927
Electrical Characteristics (Contd): (0° ≤ TJ +125°C, VIN = 10V, IOUT = 500mA, CIN = 2µF,
COUT = 1µF, Note 1, Note 2 unless otherwise specified)
Parameter
Test Conditions
Min Typ Max
Unit
Line Regulation
Load Regulation
Control Pin Current
VOUT 10V,
(VOUT15V) VIN (VOUT2.5V)
VOUT 10V,
(VOUT15V) VIN (VOUT3V)
VOUT 10V,
(VOUT7V) VIN (VOUT3V)
250mA IOUT 750mA
5mA IOUT 1.5A
TJ = +25°C
TJ = +25°C
TJ = +25°C,
VIN = VOUT5V
1.0 % (VOUT)
0.75 % (VOUT)
0.67 % (VOUT)
1.0 % (VOUT)
2.0 % (VOUT)
0.4 2.0
µA
3.0
µA
Quiescent Current
TJ = +25°C
0.5 1.5
– – 2.0
µA
µA
Ripple Rejection
Output Noise Voltage
18V VIN 8V, VOUT = 5V, f = 120Hz
50 60
dB
TJ = +25°C, 10Hz f 100kHz, VOUT = 5V, IOUT =
5mA
25 80
µV/VOUT
Dropout Voltage
Note 3
– – 2.3
V
Short Circuit Current
Peak Output Current
Average Temperature
Coefficient of
Output Voltage
TJ = +25°C, VIN = 30V
TJ = +25°C
TJ = 55° to +25°C
TJ = +25° to +150°C
VOUT = 5V,
IOUT = 5mA
0.25 1.2
A
1.3 2.1 3.3
A
– – 0.3 mV/°C/VOUT
– – 0.3 mV/°C/VOUT
Control Pin Voltage
(Reference)
TJ = +25°C
2.32 2.23 2.14
2.35 – –2.11
V
V
Note 1. VOUT is defined as:
VOUT =
R1 + R2
R2
(2.23)
Note 2. The convention for negative regulators in the algabraic value, thus 15V is less than 10V.
Note 3. Dropout Voltage is defined as that inputoutput voltage differential which causes the output
voltage to decrease by 5% of its initial value.
Note 4. All characteristics except noise voltage and ripple rejection ratio are measured using pulse
techniques (tW 10ms, duty cycle 5%). Output voltage changes due to changes in internal
temperature must be taken into account separately.







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