ST1S10PHR STMicroelectronics, ST1S10PHR Datasheet - Page 17

• Manufacturer Part Number: ST1S10PHR
• Description: IC REG 3A 900KHZ STEPDWN PWRSO-8
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of ST1S10PHR

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 15.3 V
• Current - Output: 3A
• Frequency - Switching: 900kHz
• Voltage - Input: 2.5 ~ 18 V
• Operating Temperature: -25°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width) Exposed Pad, 8-eSOIC. 8-HSOIC
• Output Voltage: 0.8 V to 15.3 V
• Output Current: 3 A
• Input Voltage: 2.5 V to 18 V
• Switching Frequency: 0.9 MHz
• Operating Temperature Range: - 25 C to + 125 C
• Mounting Style: SMD/SMT
• Duty Cycle (max): 90 %
• For Use With: 497-8407 - BOARD EVAL STP04CM05/ST1S10497-8216 - BOARD EVAL BASED ON ST1S10497-8229 - BOARD EVAL BASED ON ST1S10
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-6904-2; ST1S10PHR

ST1S10
8
Figure 9.
Figure 11. Max duty cycle vs. temperature
Figure 13. Reference line regulation vs.
830
830
830
820
820
820
810
810
810
800
800
800
790
790
790
780
780
780
770
770
770
760
760
760
-0.1
-0.1
-0.2
-0.2
92
92
90
90
88
88
86
86
84
84
82
82
80
80
0.2
0.2
0.1
0.1
0
0
-50
-50
-50
-50
-50
-50
-50
-25
-25
-25
-25
-25
-25
-25
Typical performance characteristics
Unless otherwise specified, refer to the typical application circuit under the following
conditions: T
I
Voltage feedback vs. temperature
temperature
OUT
V
V
IN-A
IN-A
=V
=V
= 10 mA, C
0
0
IN-SW
IN-SW
0
0
0
0
0
V
V
V
V
TEMPERATURE [°C]
TEMPERATURE [°C]
TEMPERATURE [°C]
IN
IN
=V
=V
IN-A
IN-A
=V
=V
TEMPERATURE [°C]
TEMPERATURE [°C]
TEMPERATURE [°C]
TEMPERATURE [°C]
INH
INH
=V
=V
25
25
INH
INH
25
25
25
25
25
from 2.5 to 20V, V
from 2.5 to 20V, V
IN-SW
IN-SW
=12V, V
=12V, V
J
= 25°C, V
=V
=V
INH
INH
IN
50
50
50
50
50
OUT
OUT
50
50
=12V, V
=12V, V
= 4.7 µF + 0.1 µF, C
=0.8V, I
=0.8V, I
OUT
OUT
75
75
FB
FB
75
75
75
75
75
=0V
=0V
IN
OUT
OUT
=0.8V, I
=0.8V, I
=10mA
=10mA
= V
100
100
100
100
100
OUT
OUT
100
100
IN-SW
Doc ID 13844 Rev 4
=10mA
=10mA
125
125
125
125
125
125
125
= V
OUT
IN-A
Figure 10. Oscillator frequency vs.
Figure 12. Inhibit threshold vs. temperature
Figure 14. Reference load regulation vs.
1.2
1.2
1.1
1.1
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
= 22 µF, L1 = 3.3 µH.
1.4
1.4
1.2
1.2
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
-0.2
-0.2
-0.5
-0.5
= V
1
1
1.3
1.3
0.7
0.7
0.4
0.4
0.1
0.1
1
1
0
0
-50
-50
1
1
-50
-50
-25
-25
INH
-25
-25
= 12 V, V
-25
-25
temperature
temperature
Typical performance characteristics
0
0
V
V
V
V
IN-A
IN-A
IN-A
IN-A
0
0
=V
=V
=V
=V
0
0
IN-SW
IN-SW
IN-SW
IN-SW
SYNC
V
V
25
25
IN-A
IN-A
TEMPERATURE [°C]
TEMPERATURE [°C]
=2.5V, V
=2.5V, V
=V
=V
TEMPERATURE [°C]
TEMPERATURE [°C]
TEMPERATURE [°C]
TEMPERATURE [°C]
=V
=V
25
25
INH
INH
25
25
IN-SW
IN-SW
=12V, I
=12V, I
= GND, V
OUT
OUT
=V
=V
50
50
=0.8V, I
=0.8V, I
INH
INH
OUT
OUT
50
50
50
50
=12V, V
=12V, V
from 10mA to 3A
from 10mA to 3A
OUT
OUT
75
75
=10mA
=10mA
75
75
OUT
FB
FB
75
75
=0V
=0V
= 5 V,
100
100
100
100
100
100
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125
125
125
125
125
125