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E-L5972D013TR
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
Electrical da
ta
L5972D
4/15
2 Electrical
data
2.1 Maxim
um
ratings
2.2 Thermal
data
T
ab
le 2.
Absolute maxim
um ratings
Symbol
P
arameter
V
alue
Unit
V
8
Input voltage
40
V
V
1
Out pin DC voltage
Out pin peak voltage at
∆
t = 0.1
µ
s
-1 to 40
-5 to 40
V
V
I
1
Maximum out
put curre
nt
int. limi
t.
V
4
, V
5
Analog pins
4
V
P
tot
P
ower dissipation at T
A
≤
70°C
1.2
W
T
j
Operating junction temperature range
-40 to 150
°C
T
stg
Storage temperature range
-55 to 150
°C
T
able 3.
Thermal data
Symbol
Parameter
SO8
Unit
R
thJA
Maximum thermal resistance ju
nction-ambient
65
(1)
1.
Package mounted on board
°
C/W
L5972D
Electrical cha
racteristics
5/15
3 Electrical
characteristics
T
able 4.
Electrical cha
racteristic
s
( T
J
= 25°C
, V
CC
= 12V
, unless otherwise specified)
Symbol
P
arameter
T
est condition
Min
T
yp
Max
Unit
V
CC
Operating input
voltage range
V
o
= 1.235V
; I
o
= 2A
(1)
1.
Specification Referred to T
J
from -40 to 125°C. Specific
ation over the -40 to +125 T
J
Temperature range
are assured by design, characterization and statistical correlation.
4.4
36
V
R
DS(on)
Mosf
et on
Resistance
(1)
0.250
0.5
Ω
I
l
Maximum limiting
current
V
CC
= 4.4V to 36V
2
2.5
3
A
f
s
Switching frequency
(1)
212
250
280
kHz
225
250
275
kHz
Duty cycle
0
100
%
Dynamic characteristics
(see test circuit ).
V
5
V
olta
ge feedbac
k
4.4V < V
CC
< 36V
,
20mA < I
O
< 2A
1.220
1.235
1.25
V
(1)
1.198
1.235
1.272
V
h
Efficiency
V
O
= 5V
, V
CC
= 12V
90
%
DC characteristics
I
qop
T
otal operating
quiescent current
(1)
35
m
A
I
q
Quiescent current
Duty cycle = 0;
V
FB
= 1.5V
2.5
mA
Error amplfier
V
OH
High lev
el output
voltage
V
FB
= 1V
3.5
V
V
OL
Low le
vel output
voltage
V
FB
= 1.5V
0.4
V
I
o source
Source output
current
V
COMP
= 1.9V
;
V
FB
= 1V
200
300
µ
A
I
o sink
Sink output current
V
COMP
= 1.9V
;
V
FB
= 1.5V
11
.
5
m
A
I
b
Source bias current
2.5
4
µ
A
DC open loop gain
R
L
=
∞
50
65
dB
gm
T
r
ansconductance
I
comp
= -0.1mA to
0.1mA
V
COMP
= 1.9V
2.3
mS
Typical charac
teristics
L5972D
6/15
4 T
ypical
c
haracteristics
Figure 3.
Outp
ut voltage vs. junction
temperature
Figure 4.
Quiesc
ent current v
s.
junction tempera
ture
Figure 5.
Line regulator
Figure 6.
Shutdown current vs.
junction tempera
ture
Figure 7.
Outp
ut voltage vs. junction
temperature
Figure 8.
Switching freq
uency vs.
junction tempera
ture
3.276
3.
28
3.284
3.288
3.292
3.296
3.3
3.304
3.308
3.312
00
.
511
.
5
Io (A
)
Vo (
V)
Tj = 125°C
Tj
= 2
5°C
Vcc
= 12
V
Vo = 3.
3
V
1.2
1.4
1.6
1.8
2
-50
05
0
100
150
Tj
(
°C)
Iq
(m
A)
Vcc =
12V
DC =
0
%
3.276
3.28
3.284
3.288
3.292
3.296
3.3
3.304
3.308
3.312
01
0
2
0
3
0
4
0
Vcc (V)
Tj = 125°C
Tj = 2
5°C
Vcc = 12V
Vo =
3.3V
Vo (V)
30
40
50
60
70
-50
0
50
100
150
Ishd
(
µ
A)
Vcc = 12V
Tj (°C)
Tj
(
°C)
Vcc=12V
1.
2
1.
21
1.
22
1.
23
1.
24
1.25
-
50
0
50
100
150
Vo (
V)
Vcc
= 12
V
1.
2
1.
4
1.6
1.8
2
-5
0
05
0
100
150
Tj
(
°
C)
Iq
(m
A)
Vcc = 12V
DC = 0
%
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
E-L5972D013TR
Mfr. #:
Buy E-L5972D013TR
Manufacturer:
STMicroelectronics
Description:
Switching Voltage Regulators 1.235 to 35V Step-Dn
Lifecycle:
New from this manufacturer.
Delivery:
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EMS
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