UZ1085
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VIN
RATINGS
18
UNIT
V
Input Voltage
See Fig.1
(VIN - VOUT) ×IOUT
Junction Temperature
Operating Temperature
Storage Temperature
TJ
+125
°C
°C
°C
TOPR
TSTG
-40 ~ +85
-40 ~ +150
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL DATA
PARAMETER
SYMBOL
RATINGS
UNIT
°C/W
°C/W
°C/W
°C/W
TO-252
118
62
12
4
Junction to Ambient
Junction to Case
θJA
TO-220/ TO-263
TO-252
θJC
TO-220/ TO-263
ELECTRICAL CHARACTERISTICS (TA=25°C, COUT=22μF, unless otherwise specified.)
For UZ1085-ADJ (Adjustable)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Reference Voltage
Line Regulation
VREF 1.5V≤(VIN - VOUT) ≤8.25V,10mA≤IOUT≤3A 1.225 1.25 1.275
V
%
△VOUT
△VOUT
VD
(VOUT +1.5V) ≤VIN≤12V, IOUT=10mA
(VIN - VOUT)=3V, 10mA≤IOUT≤3A
△VREF%=1%, lOUT=3A
0.005
0.05
1.30
4
0.2
0.5
Load Regulation
%
Dropout Voltage
1.40
V
Current Limit
ILIMIT (VIN-VOUT)=2V
IADJ
△IADJ
3.1
60
A
Adjust Pin Current
Adjust Pin Current Change
Minimum Load Current
Quiescent Current
Ripple Rejection
35
120
5
μA
μA
mA
mA
dB
1.5V≤ (VIN - VOUT) ≤12V, 10mA≤IOUT≤3A
0.2
IO(MIN) 1.5V≤ (VIN-VOUT) ≤12V
IQ
10
13
VIN=12V
4
RR
f=120Hz,Tantalum,(VIN–VOUT)=3V IOUT=3A
TA=25°C,30ms pulse
72
Thermal Regulation
Temperature Stability
Long-Term Stability
0.004 0.02 %/W
ΔVOUT
0.5
0.03
0.003
150
%
%
%
°C
ΔVOUT TA=125°C, 1000hr
eN TA=25°C,10Hz≤f≤10kHz
1.0
Output Noise(% of VOUT
Thermal Shutdown
)
For UZ1085-xx (Fixed Voltage)
PARAMETER SYMBOL
UZ1085-15
TEST CONDITIONS
3.0V≤VIN≤8.5V, 10mA≤IOUT≤3A
3.3V≤VIN≤8.8V, 10mA≤IOUT≤3A
MIN
TYP MAX UNIT
1.470 1.5 1.530
1.764 1.8 1.830
2.450 2.5 2.550
3.234 3.3 3.366
4.900 5.0 5.100
0.005 0.2
V
V
UZ1085-18
Output Voltage UZ1085-25
UZ1085-33
VOUT 4.0V≤VIN≤9.5V, 10mA≤IOUT≤3A
4.8V≤VIN≤10.3V, 10mA≤IOUT≤3A
6.5V≤VIN≤12V, 10mA≤IOUT≤3A
V
V
UZ1085-50
V
△VOUT
Line Regulation
(VOUT +1.5V) ≤VIN≤12V,IOUT=10mA
△VOUT (VIN – VOUT)=3V, 10mA≦IOUT≤3A
△VREF%=1%, lOUT=3A
%
%
V
Load Regulation
0.05
0.5
Dropout Voltage
VD
1.30 1.40
Current Limit
ILIMIT (VIN-VOUT)=2V
3.1
60
4
A
Minimum Load Current
Quiescent Current
Ripple Rejection
IO(MIN) 1.5V≤ (VIN-VOUT) ≤12V
10
mA
mA
dB
IQ
VIN=12V
4
13
RR
f=120Hz, Tantalum, (VIN -VOUT)=3V,IOUT=3A
TA=25°C,30ms pulse
TA=125°C, 1000hr
72
Thermal Regulation
Temperature Stability
Long-Term Stability
0.004 0.02 %/W
△VOUT
△VOUT
eN
0.5
0.03
0.003
150
%
%
%
°C
1.0
Output Noise(% of VOUT
Thermal shutdown
)
TA=25°C,10Hz≤f≤10kHz
UNISONIC TECHNOLOGIES CO., LTD
3 of 6
QW-R102-013,H
www.unisonic.com.tw
