STEVAL-ISA049V1 STMicroelectronics, STEVAL-ISA049V1 Datasheet - Page 9

• Manufacturer Part Number: STEVAL-ISA049V1
• Description: BOARD EVAL BASED ON ST2S06A
• Manufacturer: STMicroelectronics

Specifications of STEVAL-ISA049V1

• Mfg Application Notes: ST2S06A33, ST2S06B AppNote
• Main Purpose: DC/DC, Step Down
• Outputs And Type: 2, Non-Isolated
• Current - Output: 500mA
• Voltage - Input: 2.5 ~ 5.5V
• Regulator Topology: Buck
• Frequency - Switching: 1.5MHz
• Board Type: Fully Populated
• Utilized Ic / Part: ST2S06A
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-8217

Figure 9.
Figure 11. Switching current limitation vs.
Figure 13. NMOS switch on resistance vs.
1.9
1.9
1.8
1.8
1.7
1.7
1.6
1.6
1.5
1.5
1.4
1.4
1.3
1.3
1.2
1.2
1.1
1.1
1.8
1.8
1.6
1.6
1.4
1.4
1.2
1.2
170
170
150
150
130
130
110
110
90
90
70
70
50
50
2
2
1
1
-50
-50
2.5
2.5
-50
-50
V
V
I
I
from 2.5V to 5.5V, Output2 Maximum load Current
from 2.5V to 5.5V, Output2 Maximum load Current
-25
-25
-25
-25
temperature (ST2S06B)
input voltage (ST2S06A)
temperature
Switching frequency vs.
3
3
0
0
0
0
3.5
3.5
Temperature [°C]
Temperature [°C]
25
25
25
25
V
V
I
I
T [°C]
T [°C]
[V]
[V]
4
4
50
50
V
V
50
50
CC
CC
=5V, I
=5V, I
4.5
4.5
75
75
75
75
SW=
SW=
250mA
250mA
100
100
5
5
100
100
Doc ID 13866 Rev 4
125
125
125
125
5.5
5.5
Figure 10. Inhibit threshold vs. temperature
Figure 12. PMOS switch on resistance vs.
Figure 14. Delay time vs. temperature
V
I
V
V
Rising from 0V to 5V, Delay from V
RES
I
1.4
1.4
1.2
1.2
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
reset pin below 0V.
240
240
220
220
200
200
180
180
160
160
140
140
120
120
100
100
1
1
0
0
-50
-50
-50
-50
-25
-25
V
V
-25
-25
(ST2S06B)
temperature
CC
CC
(ST2S06A)
=5V, I
=5V, I
SW
SW
0
0
=250mA
=250mA
0
0
25
25
25
25
T [C°]
T [C°]
T [°C]
T [°C]
50
50
RES
50
50
threshold and
75
75
75
75
V
V
I
I
=5V, I
=5V, I
O1
O1
= I
= I
100
100
100
100
O2
O2
=100mA
=100mA
ON
ON
OFF
OFF
125
125
125
125
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