µA723 PRECISION VOLTAGE REGULATORS
SLVS057D – AUGUST 1972 – REVISED JULY 1999
D 150-mA Load Current Without External
P...
µA723 PRECISION VOLTAGE
REGULATORS
SLVS057D – AUGUST 1972 – REVISED JULY 1999
D 150-mA Load Current Without External
Power
Transistor
D OR N PACKAGE (TOP VIEW)
D Adjustable Current-Limiting Capability D Input Voltages up to 40 V D Output Adjustable From 2 V to 37 V D Direct Replacement for Fairchild µA723C
NC 1 CURR LIM 2 CURR SENS 3
IN– 4
14 NC 13 FREQ COMP 12 VCC+ 11 VC
IN+ 5 10 OUTPUT
description
REF 6
9 VZ
The µA723 is a precision integrated-circuit
VCC– 7
8 NC
voltage
regulator, featuring high ripple rejection,
excellent input and load regulation, excellent temperature stability, and low standby current. The circuit consists
of a temperature-compensated reference-voltage amplifier, an error amplifier, a 150-mA output
transistor, and
an adjustable-output current limiter.
The µA723 is designed for use in positive or negative power supplies as a series, shunt, switching, or floating
regulator. For output currents exceeding 150 mA, additional pass elements can be connected as shown in Figures 4 and 5.
The µA723C is characterized for operation from 0°C to 70°C.
functional block diagram
AVAILABLE OPTIONS
PACKAGED DEVICES
CHIP
TA
PLASTIC DIP
SMALL OUTLINE
FORM (Y)
(N)
(D)
0°C to 70°C µA723CN µA723CD µA723Y
The D package is available taped and reeled. Add the suffix R to the device type (e.g., µA723CDR). Chip forms are tested at 25°C.
VCC+
FREQ COMP
TemperatureCompensated Reference Diode
Current Source
Ref Amp
IN– REF
IN+
Error Amp
+ –
Curr...
