ST1S10PHR STMicroelectronics, ST1S10PHR Datasheet - Page 18

• 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

Typical performance characteristics
18/26
Figure 15. ON mode quiescent current vs.
Figure 17. PMOS ON resistance vs.
Figure 19. Efficiency vs. temperature
1.8
1.8
1.6
1.6
1.4
1.4
1.2
1.2
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
320
320
270
270
220
220
170
170
120
120
100
100
70
70
20
20
90
90
80
80
70
70
60
60
50
50
1
1
0
0
-50
-50
-50
-50
-50
-50
-25
-25
-25
-25
-25
-25
temperature
temperature
V
V
IN-A
IN-A
=V
=V
V
V
IN-A
IN-A
IN-SW
IN-SW
0
0
0
0
0
0
=V
=V
=12V, V
=12V, V
TEMPERATURE [°C]
TEMPERATURE [°C]
IN-SW
IN-SW
TEMPERATURE [°C]
TEMPERATURE [°C]
V
V
TEMPERATURE [°C]
TEMPERATURE [°C]
IN
IN
=V
=V
=12V, I
=12V, I
25
25
25
25
25
25
INH
INH
INH
INH
=12V, V
=12V, V
=1.2V, V
=1.2V, V
SW
SW
=750mA
=750mA
50
50
50
50
OUT
OUT
50
50
OUT
OUT
=5V, I
=5V, I
=0.8V
=0.8V
OUT
OUT
75
75
75
75
75
75
=3A
=3A
100
100
100
100
100
100
Doc ID 13844 Rev 4
125
125
125
125
125
125
Figure 16. Shutdown mode quiescent current
Figure 18. NMOS ON resistance vs.
Figure 20. Efficiency vs. output current
120
120
110
110
100
100
100
100
7
7
6
6
5
5
4
4
3
3
2
2
1
1
0
0
90
90
80
80
70
70
60
60
50
50
90
90
80
80
70
70
60
60
50
50
-50
-50
-50
-50
0
0
-25
-25
-25
-25
vs. temperature
V
V
temperature
0.5
0.5
IN-A
IN-A
=V
=V
IN-SW
IN-SW
V
V
0
0
IN-A
IN-A
0
0
=12V, V
=12V, V
OUTPUT CURRENT [A]
OUTPUT CURRENT [A]
=V
=V
1
1
IN-SW
IN-SW
TEMPERATURE [°C]
TEMPERATURE [°C]
TEMPERATURE [°C]
TEMPERATURE [°C]
V
V
IN
IN
25
25
INH
INH
=12V, I
=12V, I
=V
=V
25
25
=GND, V
=GND, V
INH
INH
=12V, V
=12V, V
SW
SW
1.5
1.5
=750mA
=750mA
50
50
OUT
OUT
50
50
OUT
OUT
=0.8V
=0.8V
=5V, T
=5V, T
2
2
75
75
75
75
J
J
=25°C
=25°C
2.5
2.5
100
100
100
100
ST1S10
125
125
125
125
3
3