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L5970D013TR
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P16
Electrical da
ta
L5970D
4/16
2 Electrical
data
2.1 Maxim
um
ratings
2.2 Thermal
data
T
able 2. Absolut
e maximum ra
tings
Symbol
P
arameter
V
alue
Unit
V
8
Input voltage
40
V
V
1
Output DC voltage
Output peak vo
ltage 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
V
3
INH
-0.3V to V
CC
V
2
SYNC
-0.3 to 4
V
P
TOT
P
ower dissipation at T
A
≤
60°C
0.75
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
120
(1)
1.
Package mounted on board
°
C/W
L5970D
Electrical cha
racteristics
5/16
3 Electrical
characteristics
T
able 4. Electr
ical ch
aracteristic
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)
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
1.5
1.87
2.25
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
oltage 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 op
erating
quiescent current
(1)
35
m
A
I
q
Quiescent current
Duty cycle = 0;
V
FB
= 1.5V
2.5
mA
I
qst-by
T
otal stand-by
quiescent current
V
inh
> 2.2V
(1)
50
100
µ
A
V
CC
= 36V
;
V
inh
> 2.2V
(1)
80
150
µ
A
Inhibit
INH threshold
voltage
De
vice ON
0.8
V
De
vice OFF
2.2
V
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
Electrical ch
aracteristics
L5970D
6/16
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
ransconducta
nce
I
comp
= -0.1mA to
0.1mA
V
COMP
= 1.9V
2.3
mS
Sync function
High input voltage
V
CC
= 4.4V to 36V
2.5
V
REF
V
Low i
nput v
oltage
V
CC
= 4.4V to 36V
0.74
V
Slav
e sink current
V
sync
= 0.74V
(2)
V
sync
= 2.33V
0.11
0.21
0.25
0.45
mA
mA
Master output
amplitu
de
I
source
= 3mA
2.75
3
V
Output pulse width
no load,
V
sync
= 1.65V
0.20
0.35
µ
s
Reference section
Reference v
oltage
3.234
3.3
3.36
6
V
I
REF
= 0 to 5mA
V
CC
= 4.4V to 36V
(1)
3.2
3.3
3.399
V
Line regul
ation
I
REF
= 0mA
V
CC
= 4.4V to 36V
51
0
m
V
Load regula
tion
I
REF
= 0 to
5mA
8
15
mV
Shor
t circuit current
10
18
30
mA
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.
2.
Guaranteed by design.
T
able 4. Electr
ical ch
aracteristic
s
(continued)
( T
J
= 25°C
, V
CC
= 12V
, unless otherwise specified)
Symbol
P
arameter
T
est condition
Min
T
yp
Max
Unit
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P16
L5970D013TR
Mfr. #:
Buy L5970D013TR
Manufacturer:
STMicroelectronics
Description:
Switching Voltage Regulators 1.2 to 35V Step-Down
Lifecycle:
New from this manufacturer.
Delivery:
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EMS
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