78LXX
ELECTRICAL CHARACTERISTICS (Cont.)
LINEAR INTEGRATED CIRCUIT
For UTC78L15
(V
IN
=23V, I
OUT
=40mA, 0°C <T
J
<125°C, C1=0.33uF, Co=0.1uF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX
UNIT
T
J
=25°C
14.40 15.0 15.60
V
Output Voltage
V
OUT
17.5V≦V
IN
≦30V,I
OUT
=1mA-40mA
14.25
15.75
V
17.5V≦V
IN
≦V
MAX
, I
OUT
=1mA-70mA
14.25
15.75 V(note 2)
T
J
=25°C,I
OUT
=1mA-100mA
20
150
mV
Load Regulation
V
OUT
25
150
mV
T
j
=25°C,I
OUT
=1mA-70mA
17.5V≦V
IN
≦30V,T
J
=25°C
25
150
mV
Line regulation
V
OUT
20V≦V
IN
≦30V,T
J
=25°C
15
75
mV
Quiescent Current
∆I
Q
V
IN
=23V,I
OUT
=0mA,T
J
=25°C
2.2
6.5
mA
20V≦V
IN
≦30V
1.5
mA
Quiescent Current Change
∆I
Q
1mA≦V
IN
≦40mA
0.1
mA
10Hz≦f≦100kHz
Output Noise Voltage
eN
90
uV
Temperature coefficient of V
OUT
∆V
O
/∆
T
I
OUT
=5mA
-1.3
mV/°C
18.5V≦V
IN
≦28.5V,f=120Hz,
T
J
=25°C 34
63
dB
Ripple Rejection
RR
Dropout Voltage
V
D
T
J
=25°C
1.7
V
For UTC78L18
(V
IN
=27V,I
OUT
=40mA,0°C<T
J
<125°C,C1=0.33uF,Co=0.1uF,unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX
UNIT
T
J
=25°C
17.28 18.0 18.72
V
Output Voltage
V
OUT
21V≦V
IN
≦33V,I
OUT
=1mA-40mA
17.10
18.90
V
21V≦V
IN
≦V
MAX
,I
OUT
=1mA-70mA
17.10
18.90 V(note 2)
T
J
=25°C,I
OUT
=1mA-100mA
30
170
mV
Load Regulation
V
OUT
T
J
=25°C,I
OUT
=1mA-40mA
15
85
mV
21V≦V
IN
≦33V,T
J
=25°C
145
300
mV
Line regulation
V
OUT
22V≦V
IN
≦33V,T
J
=25°C
135
250
mV
Quiescent Current
∆I
Q
V
IN
=27V,I
OUT
=0mA,T
J
=25°C
2.0
6.0
mA
21V≦V
IN
≦33V
1.5
mA
Quiescent Current Change
∆I
Q
1mA≦V
IN
≦40mA
0.1
mA
10Hz≦f≦100kHz
Output Noise Voltage
eN
150
uV
Temperature coefficient of V
OUT
∆V
O
/∆
T
I
OUT
=5mA
-1.8
mV/°C
23V≦V
IN
≦33V,f=120Hz,T
J
=25°C
34
48
dB
Ripple Rejection
RR
Dropout Voltage
V
D
T
J
=25°C
1.7
V
For UTC78L24
(V
IN
=33V,I
OUT
=40mA,0°C <T
J
<125°C,C1=0.33uF,Co=0.1uF,unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX
UNIT
T
J
=25°C
23.04 24.0 24.96
V
Output Voltage
V
OUT
27V≦V
IN
≦38V,I
OUT
=1mA-40mA
22.8
25.2
V
27V≦V
IN
≦V
MAX
, I
OUT
=1mA-70mA
22.8
25.2 V(note 2)
T
J
=25°C,I
OUT
=1mA-100mA
40
200
mV
△V
OUT
Load Regulation
T
J
=25°C,I
OUT
=1mA-40mA
20
100
mV
27V≦V
IN
≦38V,T
J
=25°C
160
300
mV
△V
OUT
Line regulation
28V≦V
IN
≦38V,T
J
=25°C
150
250
mV
Quiescent Current
∆I
Q
V
IN
=33V,I
OUT
=0mA,T
J
=25°C
2.2
6.0
mA
27V≦V
IN
≦38V
1.5
mA
Quiescent Current Change
∆I
Q
1mA≦V
IN
≦40mA
0.1
mA
10Hz≦f≦100kHz
Output Noise Voltage
eN
200
uV
Temperature coefficient of V
OUT
∆V
O
/∆
T
I
OUT
=5mA
-2.0
mV/°C
27V≦V
IN
≦38V,f=120Hz,T
J
=25°C
34
45
dB
Ripple Rejection
RR
Dropout Voltage
V
D
T
J
=25°C
1.7
V
Note 1.The Maximum steady state usable output current is dependent on input voltage, heat sinking, lead length of
the package and copper pattern of PCB.
2.Power dissipation<0.5W
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R101-001,AG
UTC-IC [ UNISONIC TECHNOLOGIES ]
