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L5973D013TR

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
Electrical data L5973D
4/17
2 Electrical data
2.1 Maximum ratings
2.2 Thermal data
Table 2. Absolute maximum ratings
Symbol Parameter Value Unit
V
8
Input voltage 40 V
V
1
Output DC voltage
Output peak voltage at t = 0.1 µs
-1 to 40
-5 to 40
V
V
I
1
Maximum output current int. limit.
V
4
, V
5
Analog pins 4 V
V
3
INH -0.3 V to V
CC
V
2
SYNC -0.3 to 4 V
P
TOT
Power dissipation at T
A
≤ 60 °C 2.25 W
T
J
Operating junction temperature range -40 to 150 °C
T
STG
Storage temperature range -55 to 150 °C
Table 3. Thermal data
Symbol Parameter
HSOP8
Exposed Pad
Unit
R
thJA
Maximum thermal resistance junction-ambient 40
(1)
1. Package mounted on board
°C/W
L5973D Electrical characteristics
5/17
3 Electrical characteristics
Table 4. Electrical characteristics
( T
J
= 25 °C, V
CC
= 12 V, unless otherwise specified)
Symbol Parameter Test condition Min Typ Max Unit
V
CC
Operating input
voltage range
V
o
= 1.235 V; I
o
= 2 A
(1)
436V
R
DS(on)
Mosfet on
Resistance
(1)
0.250 0.5 Ω
I
l
Maximum limiting
current
V
CC
= 4.4 V to 36 V 2.5 3 3.5 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
Voltage feedback
4.4 V < V
CC
< 36 V,
20 mA < I
O
< 2 A
1.220 1.235 1.25 V
(1)
1.198 1.235 1.272 V
h Efficiency V
O
= 5 V, V
CC
= 12 V 90 %
DC characteristics
I
qop
Total operating
quiescent current
(1)
35mA
I
q
Quiescent current
Duty Cycle = 0;
V
FB
= 1.5 V
2.5 mA
I
qst-by
Total stand-by
quiescent current
V
inh
> 2.2 V
(1)
50 100 µA
V
CC
= 36 V;
V
inh
> 2.2 V
(1)
80 150 µA
Inhibit
INH threshold
voltage
Device ON 0.8 V
Device OFF 2.2 V
Error amplfier
V
OH
High level output
voltage
VFB = 1 V 3.5 V
V
OL
Low level output
voltage
VFB = 1.5 V 0.4 V
I
o source
Source output
current
V
COMP
= 1.9 V;
V
FB
= 1 V
200 300 µA
I
o sink
Sink output current
V
COMP
= 1.9 V;
V
FB
= 1.5 V
11.5 mA
Electrical characteristics L5973D
6/17
I
b
Source bias current 2.5 4 µA
DC open loop gain R
L
= ∞ 50 57 dB
gm Transconductance
I
comp
= -0.1 mA to
0.1 mA
V
COMP
= 1.9 V
2.3 mS
Sync function
High input voltage V
CC
= 4.4 V to 36 V 2.5 V
REF
V
Low input voltage V
CC
= 4.4 V to 36 V 0.74 V
Slave sink current
V
sync
= 0.74 V
(2)
V
sync
= 2.33 V
0.11
0.21
0.25
0.45
mA
mA
Master output
amplitude
I
source
= 3 mA 2.75 3 V
Output pulse width
no load,
V
sync
= 1.65 V
0.20 0.35 µs
Reference section
Reference voltage 3.234 3.3 3.366 V
I
REF
= 0 to 5 mA
V
CC
= 4.4 V to 36 V
(1)
3.2 3.3 3.399 V
Line regulation
I
REF
= 0 mA
V
CC
= 4.4 V to 36 V
510mV
Load regulation I
REF
= 0 to 5 mA 8 15 mV
Short circuit current 10 18 30 mA
1. Specification Referred to T
J
from -40 to 125 °C. Specification over the -40 to +125 T
J
Temperature range
are assured by design, characterization and statistical correlation.
2. Guaranteed by design.
Table 4. Electrical characteristics (continued)
( T
J
= 25 °C, V
CC
= 12 V, unless otherwise specified)
Symbol Parameter Test condition Min Typ Max Unit
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

L5973D013TR

Mfr. #:
Buy L5973D013TR
Manufacturer:
STMicroelectronics
Description:
Switching Voltage Regulators 2.5 A Step-DN Switching Reg
Lifecycle:
New from this manufacturer.
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