NTE NTE1869SM

NTE1869 & NTE1869SM
Integrated Circuit
3 Terminal Variable Voltage Regulator
Description:
The NTE1869 and NTE1869SM are semiconductor integrated circuits designed for general–purpose
output voltage regulation. A high–performance variable output voltage regulator with small input–output voltage differences can be made in combination with externally connected PNP transistors.
These devices include a reference voltage circuit, error amplifier, and driver, and the output voltage
can be set freely by externally connected resistors, and a small, compact power supply circuit can
be achieved making the device suitable for use in small electronic equipment, such as car stereo, radio cassette recorder and portable stereo equipment.
Features:
D Wide Operating Voltage Range: VIN = 3.5V to 36V, VO = 1.5V to 33V
D Output Voltage can be Freely Set by Externally Connected Resistors
D Built–In ASO Protection and Thermal Cutoff Circuits
D Available in 2 Package Styles:
NTE1869 (Giant TO92 Type)
NTE1869SM (SOT–89 Surface Mount)
Applications:
D Car Stereo Equipment
D Radio Cassette Recorder
D Portable Stereo
D Other General Electronic Equipment
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V
Drive Current, ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA
Input–Output Voltage Difference, VI–VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V
Power Dissipation, PD
NTE1869 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900mW
NTE1869SM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Recommended Operating Conditions:
Supply Voltage Range, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5V to 30V
Rated Supply Voltage, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5V to 25V
Electrical Characteristics:
Parameter
(TA = +25°C, Vi = 15V, Vo = 12V, IL = 200mA, CREF = 1µF, R1 = 4.3kΩ,
unless otherwise specified)
Symbol
Test Conditions
Min
Typ
Max
Unit
Input Voltage
VIN
Between Pin1 and Pin2
3.5
–
36
V
Output Voltage
VO
R2 F 0.82kΩ to 108kΩ
1.5
–
33
V
–
0.2
–
V
Minimum Input–Output Voltage
Difference
VI–VO
Reference Voltage
VREF
Between Pin3 and Pin2
Input Regulation
Reg–In
VI = 15V to 20V
–
0.02
0.1
%/V
Load Regulation
Reg–L
IL = 10mA to 200mA
–
0.02
0.1
%
IL = 0 (disregarding the current in resistors
R1, R2
–
1.7
3.0
mA
TA = 0° to +75°C
–
0.02
–
%/°C
Bias Current
IB
Temperature Coefficient of Output
Voltage
TCVO
1.20 1.26 1.32
V
Ripple Rejection Ratio
RR
f = 120Hz
–
68
–
dB
Output Noise Voltage
VNO
f = 20Hz to 100kHz
–
33
–
µVrms
NTE1869
.323
(8.2)
Max
.374
(9.5)
Min
.024 (0.62) Max
1 2 3
.050 (1.27) Typ
.200 (5.08) Dia Max
.162 (4.1) Max
Pin 1. Input
2. GND
3. Reference
NTE1869SM
.174 (4.42)
.059
(1.5)
.067
(1.7)
.096
(2.46)
.161
(4.1)
3
2
1
.041
(1.05)
Min
.020 (.508)
.015 (0.32)
.059 (1.5)
.118 (3.0)
Bottom View
Pin 1. Reference
2. GND
3. Input