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<strong>ITT</strong><br />

<strong>ITT</strong>723<br />

PRECISION VOLTAGE REGULATOR<br />

- -----<br />

SEMICONDUCTORS<br />

PRECISION VOLTAGE REGULATOR<br />

PRECISION VOLTAGE REGULATOR <strong>ITT</strong>723<br />

• Positive or Negative Supply Operation<br />

• Series, Shunt, Switching or Floating<br />

Operation<br />

• .01 0;. Line and Load Regulation<br />

• Output Voltage Adjustable From 2 to 37 Volts<br />

• Output Current to 150 mA Without External<br />

Pass Transistor<br />

The <strong>ITT</strong>723 is a monolithic voltage· regulator<br />

constructed on a single silicon chip using the<br />

epitaxial process. The device consists <strong>of</strong> a<br />

temperature compensated reference amplifier,<br />

error amplifier, power series pass tansistor and<br />

current limit circuitry. Additional NPN or PNP<br />

pass elements may be used when output currents<br />

exceeding 150 mA are required. Provisions<br />

are made for adjustable current limiting·<br />

and remote shutdown. In addition to the above,<br />

the device features low standby current drain,<br />

low temperature qrift and high ripple rejection.<br />

The <strong>ITT</strong>723 is intended for use with positive<br />

or negative supplies as a series, shunt, switcfJing<br />

or. floating regulator. Applications include<br />

laboratory power supplies, isolation regulators<br />

for low level data amplifiers, logic card regulators,<br />

small instrument power supplies, airborne<br />

systems and other power supplies for<br />

digital· and linear circuits.<br />

Connection Diagrams<br />

Top Views<br />

INVERTING<br />

INPUT<br />

NON·INVERTING 3<br />

INPUT<br />

CURRENT<br />

LIMIT<br />

Note: On metal can, pin 5<br />

is connected to case.<br />

NC<br />

CURRENT LIMIT<br />

CURRENT SENSE<br />

INVERTING INPUT<br />

NON·INVERTING INPUT<br />

VREF<br />

V<br />

v<br />

14 LEAD DIP<br />

(TOP VIEW)<br />

NC<br />

FREQUENCY<br />

COMPENSATION<br />

v'<br />

Vc<br />

VOUT<br />

Vz<br />

NC<br />

ABSOLUTE MAXIMUM RATINGS<br />

Characteristics<br />

Pulse Voltage from V+ to V- (50 msec) .....<br />

Voltage from V+ to V-<br />

0<br />

Continuous Voltage from V+ to V- 0<br />

•••••••••••••••• 0<br />

••••••••<br />

Maximum Output Current ...................<br />

Input-Output Voltage Differential .............<br />

Current from Vz ........•.....•....••• ; .•••<br />

Current from VREF ••••••••••••••••••••••••••<br />

Internal Power Dissipation-Metal Can (Note 1)<br />

Internal Power DissiQation-DIP (Note 1) .....<br />

<strong>ITT</strong>723-1 <strong>ITT</strong>723-5 Units<br />

50 V<br />

40 V<br />

40 V<br />

150 mA<br />

40 40 V<br />

25 .25 mA<br />

15 15 mA<br />

800 800 mW<br />

900 '-900 mW<br />

7-38

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