NTE NTE1905 Datasheet

NTE1905

Integrated Circuit

Negative 3 Terminal Voltage Regulator,

–15V, 100mA

Description:

The NTE1905 voltage regulator is an inexpensive, easy–to–use device in a TO92 type p ackage s uitable
for a multitude o f a pplications t hat r equire a r egulated s upply o f u p to 100mA. T his d evice f eatures inter­nal current limiting a nd t hermal s hutdown m aking t he N TE1905 r emarkably r ugged. No external compo­nents are required in many applications.

The NTE1905 offers a substantial performance advantage over the traditional zener diode–resistor
combination, as output impedance and quiescent current are substantially reduced.

Features:

D Low Cost
D ±5% Tolerance
D Internal Short–Circuit Current Limiting
D Internal Thermal Overload Protection
D No External Components Required

Absolute Maximum Ratings:

Input Voltage, V

I

Operating Junction Temperature Range, T
Storage Junction Temperature Range, T

Electrical Characteristics:

(TA = +25°C unless otherwise specified)

J

stg

(VI = –33V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, 0° < TJ < +125°C
unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Output Voltage V

Line Regulation Reg

TJ = +25°C –14.4 –15 –15.6 V

O

–17.5V ≥ VI ≥ –30V, 1.0mA ≤ IO ≤ 40mA –14.25 – –15.75 V
VI = –23V, 1.0mA ≤ IO ≤ 70mA –14.25 – –15.75 V

line

TJ = +25°C

–17.5V ≥ VI ≥ –30V – – 300 mV
–20V ≥ VI ≥ –30V – – 250 mV

–35V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics (Cont’d): (VI = –33V, IO = 40mA, CI = 0.33µF, CO = 0.1µF,

0° < T

Parameter Symbol Test Conditions Min Typ Max Unit

< +125°C unless otherwise specified)

J

Load Regulation Reg

Input Bias Current I

Input Bias Current
Change

Output Noise Voltage V
Long–Term Stability ∆VO/∆t – 30 – mV/1.0kHrs
Ripple Rejection RR –18.5V ≤ VI ≤ –28.5V, f = 120Hz 34 39 – dB
Input–Output Voltage

Differential

loadTJ

IB

∆I

IB

n

|VI/VO| IO = 40mA, TJ = +25°C – 1.7 – V

= +25°C 1.0mA ≤ IO ≤ 100mA – – 150 mV

1.0mA ≤ IO ≤ 40mA – – 75 mV
TJ = +25°C – – 6.5 mA
TJ = +125°C – – 6.0 mA
–20V ≥ VI ≥ –30V – – 1.5 mA

1.0mA ≤ IO ≤ 40mA – – 0.1 mA
TA = +25°C, 10Hz ≤ f ≤ 100kHz – 90 – µV

.135 (3.45) Min

.210

(5.33)

Seating Plane

Max

.500

(12.7)

Min

.100 (2.54)

.105 (2.67) Max

.205 (5.2) Max

GND

V

IN

V

OUT

.021 (.445) Dia Max

.050 (1.27)

.165 (4.2) Max

.105 (2.67) Max