NTE1923 查看數據表（PDF） - NTE Electronics

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NTE1923

3 Terminal Negative Voltage Regulator –18V, 1.5A

NTE Electronics 

NTE1923

3 Terminal Negative Voltage Regulator

–18V, 1.5A

Description:

The NTE1923 is a negative 3–terminal voltage regulator in a TO3 type package suitable for numerous

applications including local, on–card regulation requiring up to 1.5A. This device features thermal

shutdown and current limiting making the NTE1920 remarkably rugged.

Although designed primarily as a fixed voltage regulator, this device can be used with external compo-

nents to obtain adjustable voltages and currents.

Features:

D Internal Thermal Overload Protection

D Output Transistor Safe Area Protection

D Internal Short Circuit Current Limit

D No External Components Required

Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)

Input Voltage , VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –35V

Internal Power Dissipation (TA = +25°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited

Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.2mW/°C

Internal Power Dissipation (TC = +25°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited

Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182mW/°C

Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +150°C

Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C

Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5°C/W

Thermal Resistance, Junction–to–Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45°C/W

Electrical Characteristics: (0° ≤ TJ ≤ +125°C, VIN = –27V, IO = 0.5Aunless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Output Voltage

Line Regulation

Load Regulation

VO

Regline

Regload

TJ = +25°C

5mA ≤ IO ≤ 1A, –33V ≤ VIN ≤ –21V, PO ≤ 15W

TJ = +25°C, –33V ≤ VIN ≤ –21V, Note 1

TJ = +25°C, –30V ≤ VIN ≤ –24V, Note 1

TJ = +25°C, 5mA ≤ IO ≤ 1.5A, Note 1

TJ = +25°C, 250mA ≤ IO ≤ 750mA, Note 1

–17.3 –18.0 –18.7 V

–17.1 –18.0 –18.9 V

–

90 360 mV

–

50 180 mV

– 110 360 mV

–

55 180 mV

Note 1. Load and line regulation are specified at constant junction temperature. Change in VO due

to heating effects must be taken into account separately. Pulse testing with low duty cycle is

used.

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