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ST1S10 Datasheet(PDF) 17 Page - STMicroelectronics

Part # ST1S10
Description  3 A, 900 kHz, monolithic synchronous step-down regulator
PDF  26 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST1S10 Datasheet(HTML) 17 Page - STMicroelectronics

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ST1S10
Typical performance characteristics
17/26
8
Typical performance characteristics
Unless otherwise specified, refer to the typical application circuit under the following
conditions: TJ = 25°C, VIN = VIN-SW = VIN-A = VINH = 12 V, VSYNC = GND, VOUT = 5 V,
IOUT = 10 mA, CIN = 4.7 µF + 0.1 µF, COUT = 22 µF, L1 = 3.3 µH
Figure 9.
Voltage feedback vs. temperature
Figure 10.
Oscillator frequency vs.
temperature
Figure 11.
Max duty cycle vs. temperature
Figure 12.
Inhibit threshold vs. temperature
Figure 13.
Reference line regulation vs.
temperature
Figure 14.
Reference load regulation vs.
temperature
760
770
780
790
800
810
820
830
-50
-25
0
25
50
75
100
125
TEMPERATURE [°C]
V
IN=VINH=12V, VOUT=0.8V, IOUT=10mA
760
770
780
790
800
810
820
830
-50
-25
0
25
50
75
100
125
TEMPERATURE [°C]
760
770
780
790
800
810
820
830
-50
-25
0
25
50
75
100
125
TEMPERATURE [°C]
V
IN=VINH=12V, VOUT=0.8V, IOUT=10mA
0.6
0.7
0.8
0.9
1
1.1
1.2
-50
-25
0
25
50
75
100
125
TEMPERATURE [°C]
V
IN-A=VIN-SW=VINH=12V, VFB=0V
0.6
0.7
0.8
0.9
1
1.1
1.2
-50
-25
0
25
50
75
100
125
TEMPERATURE [°C]
V
IN-A=VIN-SW=VINH=12V, VFB=0V
80
82
84
86
88
90
92
-50
-25
0
25
50
75
100
125
TEMPERATURE [°C]
V
IN-A=VIN-SW=VINH=12V, VFB=0V
80
82
84
86
88
90
92
-50
-25
0
25
50
75
100
125
TEMPERATURE [°C]
V
IN-A=VIN-SW=VINH=12V, VFB=0V
0
0.2
0.4
0.6
0.8
1
1.2
1.4
-50
-25
0
25
50
75
100
125
TEMPERATURE [°C]
V
IN-A=VIN-SW=2.5V, VOUT=0.8V, IOUT=10mA
0
0.2
0.4
0.6
0.8
1
1.2
1.4
-50
-25
0
25
50
75
100
125
TEMPERATURE [°C]
V
IN-A=VIN-SW=2.5V, VOUT=0.8V, IOUT=10mA
-0.2
-0.1
0
0.1
0.2
-50
-25
0
25
50
75
100
125
TEMPERATURE [°C]
V
IN-A=VIN-SW=VINH from 2.5 to 20V, VOUT=0.8V, IOUT=10mA
-0.2
-0.1
0
0.1
0.2
-50
-25
0
25
50
75
100
125
TEMPERATURE [°C]
V
IN-A=VIN-SW=VINH from 2.5 to 20V, VOUT=0.8V, IOUT=10mA
-0.5
-0.2
0.1
0.4
0.7
1
1.3
-25
0
25
50
75
100
125
TEMPERATURE [°C]
V
IN-A=VIN-SW=VINH=12V, IOUT from 10mA to 3A
-0.5
-0.2
0.1
0.4
0.7
1
1.3
-25
0
25
50
75
100
125
TEMPERATURE [°C]
V
IN-A=VIN-SW=VINH=12V, IOUT from 10mA to 3A



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