NTE956 NTE Electronics, Inc., NTE956 Datasheet

NTE956

Manufacturer Part Number

NTE956

Description

Voltage Regulator; 0.01 %/V (Typ.); 5 mV (Typ.); 1 % (Typ.); 65 dB (Typ.)

Manufacturer

NTE Electronics, Inc.

Type

Voltage Regulatorr

Datasheet

1.NTE956.pdf (2 pages)

Specifications of NTE956

Current, Output

1.5 A

Load Regulation

5 mV (Typ.)

Output Noise, Rms

0.003 % (Typ.)

Package Type

TO-220

Pin Current, Adjustable

50 μA (Typ.)

Power Dissipation

20 W

Regulation, Line

0.01 %/V

Regulation, Load

5 %/V

Regulator Type

Positive Voltage Out

Resistance, Thermal, Junction To Case

4 °C/W

Ripple, Rejection

65 dB (Typ.)

Temperature, Operating, Maximum

125 °C

Temperature, Operating, Minimum

0 °C

Temperature, Operating, Range

-20 to +125 °C

Temperature, Stability

1 % (Typ.)

Voltage Input-output Differential

40 V

Voltage, Noise

0.003 %/V

Voltage, Output

37 V

Lead Free Status / Rohs Status

RoHS Compliant part

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NTE956

Integrated Circuit

3–Terminal Adjustable Positive

Voltage Regulator

Description:

The NTE956 is an adjustable 3–terminal positive voltage regulator in a TO220 type package capable

of supplying in excess of 1.5A over a 1.2V to 37V output range. This device is exceptionally easy to

use and both line and load regulation are better than standard fixed regulators.

In addition to higher performance than fixed regulators, the NTE956 offers full overload protection

available only in IC’s. Included on the chip are current limit, thermal overload protection and safe area

protection. All overload protection circuitry remains fully functional even if the adjustment terminal

is disconnected.

Normally, no capacitors are needed unless the device is situated far from the input filter capacitors

in which case an input bypass is needed. An optional output capacitor can be added to improve tran-

sient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios

which are difficult to achieve with standard 3–terminal regulators.

Besides replacing fixed regulators, the NTE956 is useful in a wide variety of other applications. Since

the regulator is “floating” and sees only the input–to–output differential voltage, supplies of several

hundred volts can be regulated as long as the maximum input to output differential is not exceeded.

Also, it makes an especially simple adjustable switching regulator, a programmable output regulator,

or by connecting a fixed resistor between the adjustment and output, the NTE956 can be used as a

precision current regulator. Supplies with electronic shutdown can be achieved by clamping the ad-

justment terminal to GND which programs the output to 1.2V where most loads draw little current.

Features:

D Adjustable Output Down to 1.2V

D Guaranteed 1.5A Output Current

D Line Regulation Typically 0.01%/V

D Load Regulation Typically 0.1%

D Current Limit Constant with Temperature

D 100% Electrical Burn–In

D Eliminates the Need to Stock Many Voltages

D 80dB Ripple Rejection

Absolute Maximum Ratings:

Power Dissipation, P

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Internally Limited

Input–Output Voltage Differential, V

–V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

40V

Operating Junction Temperature Range, T

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0 to +125 C

Storage Temperature Range, T

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65 to +150 C

stg

Typical Thermal Resistance, Junction–to–Case, R

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 C/W

thJC

Lead Temperature (During Soldering, 10sec), T

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+300 C

Related parts for NTE956

NTE956 Summary of contents

Page 1

... Also, it makes an especially simple adjustable switching regulator, a programmable output regulator connecting a fixed resistor between the adjustment and output, the NTE956 can be used as a precision current regulator. Supplies with electronic shutdown can be achieved by clamping the ad- justment terminal to GND which programs the output to 1 ...

Page 2

Electrical Characteristics: (0 Parameter Symbol Line Regulation Reg Load Regulation Reg Thermal Regulation Adjustment Pin Current Adjustment Pin Current Change Reference Voltage Temperature Stability Minimum Load Current I Maximum Output Current I Limit RMS Output Noise OUT ...

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