OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

E-L5972D013TR

P1-P3P4-P6P7-P9P10-P12P13-P15
L5972D Application circuit
7/15
5 Application circuit
In figure 8 is shown the demo board application circuit for the device in SMD version, where
the input supply voltage, Vcc, can range from 4.4V to 25V due to the rated voltage of the
input capacitor and the output voltage is adjustable from 1.235V to V
cc
.
Figure 9. Demo board application circuit
Table 5. Component list
Reference Part number Description Manufacturer
C1 GRM32DR61E106KA12L 10µF, 25V MURATA
C2 POSCAP 10TPB100M 100µF, 10V Sanyo
C3 C1206C221J5GAC 220pF, 5%, 50V KEMET
C4 C1206C223K5RAC 22nF, 10%, 50V KEMET
R1 5.6K, 1%, 0.1W 0603 Neohm
R2 3.3K, 1%, 0.1W 0603 Neohm
R3 4.7K, 1%, 0.1W 0603 Neohm
D1 STPS2L25U 2A, 25V ST
L1 DO3316P-333 33µH, 2.1A COILCRAFT
D03IN1438
8
2
4
5
1
7
L5972D
C1
10µF
25V
CERAMIC
C2
100µF
10V
VOUT=3.3V
VIN = 4.4V to 25V
R1
5.6K
R2
3.3K
R3
4.7K
C4
22nF
C3
220pF
3
L1 33µH
6
D1
STPS2L25U
COMP
VCC OUT
FB
GND
Application circuit L5972D
8/15
Figure 10. PCB layout (component side)
Figure 11. PCB layout (bottom side)
Figure 12. PCB layout (front side)
Sideways two graphs show the T
J
versus output current in different conditions of the input
and output voltage.
L5972D Application circuit
9/15
Figure 13. Junction temperature vs
output current
Figure 14. Efficiency vs output current
Figure 15. Junction temperature vs
output current
Figure 16. Efficiency vs output current
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Io(A)
TJ(°C)
Vin=5V
Tamb.=25
°
C
Vo=1.8V
Vo=2.5V
Vo=3.3V
67
69
71
73
75
77
79
81
83
85
87
89
91
93
95
0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7
Io (A)
Efficiency (%)
Vo=1.8V
Vo=2.5V
Vo=3.3V
Vin=5V
Vo=1.8V
Vo=2.5V
Vo=3.3V
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Io(A)
TJ(°C)
Vo=2.5V
Vo=3.3V
Vo=5V
Vin=12V
Tamb= 25°C
70
72
74
76
78
80
82
84
86
88
90
92
94
96
0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7
Io (A)
Efficiency (%)
Vin=12V
Vo=2.5V
Vo=3.3V
Vo=5V
Vin=12V
Vo=2.5V
Vo=3.3V
Vo=5V
P1-P3P4-P6P7-P9P10-P12P13-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:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet