Voltage Regulator. NTE1929 Datasheet

NTE1929 Regulator. Datasheet pdf. Equivalent

Part NTE1929
Description 3 Terminal Adjustable Positive Voltage Regulator
Feature NTE1929 3 Terminal Adjustable Positive Voltage Regulator 1.2V to 33V, 3A Description: The NTE1929 is.
Manufacture NTE
Datasheet
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NTE1929
NTE1929
3 Terminal Adjustable Positive Voltage Regulator
1.2V to 33V, 3A
Description:
The NTE1929 is an adjustable 3–terminal positive voltage regulator in a TO220 type package capable
of supplying in excess of 3A over an output voltage range of 1.2V to 33V. This device employes inter-
nal current limiting, thermal shutdown, and safe area compensation making the it essentially blow–out
proof.
The NTE1929 serves a wide variety of applications including local, on card regulation. This device
also makes an especially simple adjustable switching regulator, a programmable output regulator,
and can also be used as a precision current regulator.
Features:
D Guaranteed 3A Output Current
D Output Adjustable Between 1.2V and 33V
D Load Regulation Typically 0.1%
D Line Regulation Typically 0.005%/V
D Internal Thermal Overload Protection
D Internal Short–Circuit Current Limiting Constant with Temperature
D Floating Operation for High Voltage Applications
D Standard 3–Lead TO220 Type Transistor Package
D Eliminates Stocking many Fixed Voltages
Absolute Maximum Ratings:
Input–Output Voltage Differential, VI–VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +125°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Lead Temperature (During Soldering, 10sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C
Thermal Resistance, Junction–to–Case, RthJC
Peak (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3°C/W Max
Average (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5°C/W Typ
Note 1. Thermal Resistance evaluated measuring the hottest temperature on the die using an in-
frared scanner. This method of evaluation yields very accurate thermal resistance values
which are conservativeompared to other measurement techniques.
Note 2. The average die temperature is used to derive the value of thermal resistance junction to
case (average).



NTE1929
Electrical Characteristics: (VIVO = 5V, IL = 1.5A, TJ = 0° to +125°C, Pmax = 25W unless
otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Line Regulation
Regline 3V VIVO 35V,
Note 3
TA = +25°C
0.005 0.03
0.02 0.07
%/V
%/V
Load Regulation
Regload 10mA IL 3A,
VO 5V, Note 3
TA = +25°C
5.0 25
20 70
mV
mV
Thermal Regulation
Adjustment Pin Current
Adjustment Pin Current Change
Reference Voltage
Temperature Stability
Minimum Load Current to Maintain
Regulation
10mA IL 3A,
VO 5V, Note 3
TA = +25°C
Regtherm
IAdj
IAdj
Vref
TS
ILmin
TA = +25°C, Pulse = 20ms
3V VIVO 35V, 10mA IL 3A,
PD = Pmax
3V VIVO 35V, 10mA IL 3A,
PD = Pmax
0° ≤ TJ +125°C
VIVO = 35V
0.1 0.5
0.3 1.5
0.002
50 100
0.2 5.0
1.20 1.25 1.30
1.0
3.5 10
% VO
% VO
% VO/W
µA
µA
V
% VO
mA
Maximum Output Current
RMS Noise, % of VO
Ripple Rejection
LongTerm Stability
Imax VIVO 10V, PD Pmax
3.0 4.5
A
VIVO = 30V, PD Pmax, TA = +25°C 0.25 1.0
A
N 10Hz f 10kHz, TA = +25°C
0.003
% VO
RR VO = 10V, f = 120Hz,
65
Note 4
CAdj = 10µF 66 80
dB
dB
S TJ = +125°C, Note 5, TA = +25°C for 0.3 1.0 %/1.0k
Endpoint Measurements
Hrs.
Note 3. Load and line regulation are specified at constant junction temperature. Changes in VO due
to heating effects must be taken into account separately. Pulse testing with low duty cycle
is used.
Note 4. CAdj, when used, is connected between the adjustment pin and GND.
Note 5. Since LongTerm Stability cannot be measured on each device before shipment, this speci-
fication is an engineering estimate of average stability from lot to lot.
.420 (10.67)
Max
.110 (2.79)
.147 (3.75)
Dia Max
Tab
.500
(12.7)
Max
.070 (1.78)
Max
Adjust
.100 (2.54)
.250
(6.35)
Max .500
(12.7)
Min
VIN
VOUT/TAB







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