78TXXA
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
QW-R101-011,F
3 of 8
ABS OLUT E MAX IMUM RAT INGS
(Operating temperature range applies unless otherwise specified)
PARAMETER
SYMBOL
V
IN
V
IN
I
OUT
P
D
T
J
T
OPR
T
STG
RATING
35
40
1
Internally Limited
+125
0~ +70
-40~ +150
UNIT
V
V
A
W
°C
°
C
°
C
V
OUT
=3.3~18V
V
OUT
=24V
Input Voltage
Output Current
Power Dissipation
Junction Temperature
Operating Junction Temperature
Storage Temperature
Note 1. 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.
2. The device is guaranteed to meet performance specification within 0
and assured by design from -20
~+85
.
ELECT RICAL CHARACT ERIS T ICS
FOR 78T33A
(V
IN
=5.8V, I
OUT
=0.5A, T
J
= 0
°
C-125
°
C, C1=0.33uF, Co=0.1uF, unless otherwise specified)(Note 1)
PARAMETER
SYMBOL
TEST CONDITIONS
T
J
=25
°
C, I
OUT
=5mA-1.0A
Output Voltage
V
OUT
V
IN
=5.8V~18.3V, I
OUT
=5mA-1.0A, P
D
T
J
=25
°
C, I
OUT
=5mA-1.0A
Load Regulation
V
OUT
T
J
=25
°
C, I
OUT
=0.25A-0.75A
V
IN
=5.8V~18.3V, T
J
=25
°
C
Line regulation
V
OUT
V
IN
=5.8V~18.3V, T
J
=25
°
C, I
OUT
=1.0A
Quiescent Current
I
Q
T
J
=25
°
C, I
OUT
1.0A
V
IN
=5.8V~18.3V
Quiescent Current Change
I
Q
I
OUT
=5mA-1.0A
Output Noise Voltage
eN
10Hz
f
100kHz
Temperature coefficient of Vo
Vo/
T I
OUT
=5Ma
Ripple Rejection
RR
V
IN
=6.3V-16.3V, f=120Hz,T
J
=25
°
C
Peak Output Current
I
PEAK
T
J
=25
°
C
Short-Circuit Current
I
SC
V
IN
=35V, T
J
=25
°
C
Dropout Voltage
V
D
T
J
=25
°
C
FOR 78T47A
(V
IN
=9.7V, I
OUT
=0.5A, T
J
= 0
°
C - 125
°
C, C1=0.33uF, Co=0.1uF, unless otherwise specified)(Note 1)
PARAMETER
SYMBOL
TEST CONDITIONS
T
J
=25
°
C, I
OUT
=5mA-1.0A
Output Voltage
V
OUT
V
IN
=7.2V~19.7V,I
OUT
=5mA-1.0A,P
D
T
J
=25
°
C, I
OUT
=5mA-1.0A
Load Regulation
V
OUT
T
J
=25
°
C, I
OUT
=0.25A-0.75A
V
IN
=7.2V~19.7V, T
J
=25
°
C
Line regulation
V
OUT
V
IN
=7.2V~19.7V, T
J
=25
°
C, I
OUT
=1.0A
Quiescent Current
I
Q
T
J
=25
°
C, I
OUT
V
IN
=7.2V~19.7V
Quiescent Current Change
I
Q
I
OUT
=5mA-1.0A
Output Noise Voltage
eN
10Hz
f
100kHz
Temperature coefficient of Vo
Vo/
T
I
OUT
=5mA
Ripple Rejection
RR
V
IN
=7.7V-17.7V, f=120Hz, T
J
=25
°
C
Peak Output Current
I
PEAK
T
J
=25
°
C
Short-Circuit Current
I
SC
V
IN
=35V, T
J
=25
°
C
Dropout Voltage
V
D
T
J
=25
°
C
~+70
operating temperature range
MIN
3.168 3.30
15W 3.135
TYP
MAX
3.432
3.465
33
17
33
33
8.0
1.0
0.5
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μ
V
mV/
°
C
dB
A
mA
V
55
-0.4
57
1.8
250
2.0
MIN
4.512 4.70
15W4.465
62
TYP
MAX
4.888
4.935
47
24
47
47
8.0
1.0
0.5
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μ
V
mV/
°
C
dB
A
mA
V
1.0A
40
-0.6
80
1.8
250
2.0