Datasheet

UTC UC723
LINEAR INTEGRATED CIRCUIT
ADJUSTABLE VOLTAGE
REGULATOR
DESCRIPTION
The UTC UC723 is a silicon monolithic integrated circuit,
designed for service as voltage regulator at output voltages,
ranging from 2V to 37V at current up to 150mA. It includes a
temperature-compensated reference amplifier, an error
amplifier, a power series pass transistor, and a
current-limiting circuit.
FEATURES
*Up to 150mA output current
*Adjustable output voltage (from 2V to 37V)
*Positive and negative voltage regulation
*Regulation in excess of 10A with suitable pass transistors
*Input and output short-circuit protection
*Load and line regulation< 0.03%
DIP-14
BLOCK DIAGRAM
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R103-006,A
UTC UC723
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS(Ta=25°C )
PARAMETER
SYMBOL
VALUE
UNIT
Vcc
40
V
Supply Voltage(between V+ and V-)
Pulse Voltage for 50ms
Vpulse
50
V
Differential Input-Output Voltage
Vd
40
V
Different Input Voltage (Between inverting and non-inverting
Vid
+-5
V
inputs)
Different Input Voltage (Between Non-inverting Input and V-)
Current from Zener Diode Terminal
Power Dissipation
Vid
8
V
Iz
25
mA
Pd
900
mW
Operating Temperature
Topr
-55 ~ 125
°C
Storage Temperature
Tstr
-65 ~ 150
°C
ELECTRICAL CHARACTERISTICS(Ta=25°C, V+=Vc=Vi=12V, Vo=5V, IL=1mA, C1=100Pf, Cref=0,
Rscp=0, unless otherwise specified, divider impedance R1*R2/(R1+R2) at non-inverting input, terminal 5=10KΩ)
PARAMETER
SYMBOL
TEST CONDITIONS
Quiescent Regulator Current
ICCQ
IL=0, VI=30V
MIN
TYP
MAX
UNIT
2.3
3.5
mA
Input Voltage Range
VI
9.5
40
V
Output Voltage Range
VO
2
37
V
VI-VO
3
38
V
Differential Input-Output
Voltage
Reference Voltage
VREF
Line Regulation (note 1)
Load Regulation (note 1)
Output Voltage Temperature
∆VO
∆VO
∆VO
7.15
7.35
V
VI=12V to 40V
6.95
0.02
0. 2
%Vo
VI=12V to 15V
VI=12V to 15V, Ta=-55~125°C
0. 01
0.1
IL=1mA TO 50mA
IL=1mA TO 50mA,Ta=-55~125°C
0.03
0. 15
Ta=-55~125°C
0.002
%Vo
0.6
0.015
%/°C
Coefficient
Ripple Rejection (note 2)
RR
f=50Hz to 10KHz
74
f=50Hz to 10KHz, Cref=5µF
86
Tmin<Ttyp<Tmax
2.5
dB
Short Circuit Limiting Current
ILIM
Rscp=10Ω, Vo=0
65
mA
Equivalent Noise RMS
VN
BW=100Hz to 10KHz, Cref=0
-20
µV
BW=100Hz to 10KHz, Cref=5µF
2.5
output Voltage (note 2)
NOTE 1: Line and load regulation specifications are given for conditions of a constant chip temperature. For
high dissipation condition, temperature drifts must be separately taken in account.
NOTE 2: For Cref, see Fig. 1
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R103-006,A
UTC UC723
LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R103-006,A
UTC UC723
LINEAR INTEGRATED CIRCUIT
TYPICAL PERFORMANCE CHARACTERISTICS
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UTC
UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R103-006,A
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