ST1S12G12R STMicroelectronics, ST1S12G12R Datasheet - Page 11

• Manufacturer Part Number: ST1S12G12R
• Description: IC DC-DC CONN STDN 1.2V TSOT23-5
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of ST1S12G12R

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.2V
• Current - Output: 700mA
• Frequency - Switching: 1.7MHz
• Voltage - Input: 2.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-5, TSOT-5, TSOP-5
• Output Voltage: 1.2 V
• Output Current: 0.7 A
• Input Voltage: 2.5 V to 5.5 V
• Switching Frequency: 1.7 MHz
• Operating Temperature Range: - 40 C to + 125 C
• Mounting Style: SMD/SMT
• Duty Cycle (max): 100 %
• For Use With: 497-8220 - BOARD EVAL BASED ON ST1S12497-8219 - BOARD EVAL BASED ON ST1S12
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-6905-2; ST1S12G12R

ST1S12XX, ST1S12XX12, ST1S12XX18
7
Figure 4.
Figure 6.
Figure 8.
100
100
650
650
630
630
610
610
590
590
570
570
550
550
2.3
2.3
2.1
2.1
1.9
1.9
1.7
1.7
1.5
1.5
1.3
1.3
1.1
1.1
90
90
80
80
70
70
60
60
50
50
40
40
30
30
20
20
10
10
0
0
-75
-75
-75
-75
0
0
-50
-50
-50 -25
-50 -25
0.1
0.1
Typical performance characteristics
Unless otherwise specified, refer to the typical application circuit under the following
conditions: C
Voltage feedback vs. temperature
Oscillator frequency vs.
temperature
Efficiency vs. output current
V
V
IN
IN
-25
-25
V
V
=V
=V
IN
IN
V
V
=V
=V
EN
EN
IN
IN
0.2
0.2
=V
=V
=3.6V, V
=3.6V, V
EN
EN
0
0
0
0
EN
EN
=3.6V, I
=3.6V, I
=3.6V, I
=3.6V, I
25
25
25
25
0.3
0.3
FB
FB
OUT
OUT
IN
=0.65V, V
=0.65V, V
T [°C]
T [°C]
I
I
OUT
OUT
T [°C]
T [°C]
OUT
OUT
=from 10mA to 700mA, V
=from 10mA to 700mA, V
50
50
50
50
= 4.7 µF, C
=10mA, V
=10mA, V
0.4
0.4
[A]
[A]
75
75
75
75
OUT
OUT
OUT
OUT
=1.8V
=1.8V
0.5
0.5
100 125 150 175
100 125 150 175
100
100
=1.8V
=1.8V
OUT
125
125
0.6
0.6
Doc ID 14314 Rev 3
OUT
OUT
= 10 µF, L = 2.2 µH
150
150
=1.8V
=1.8V
0.7
0.7
175
175
Figure 5.
Figure 7.
Figure 9.
100
100
100
100
0.5
0.5
0.4
0.4
0.3
0.3
0.2
0.2
0.1
0.1
90
90
80
80
70
70
60
60
50
50
40
40
30
30
20
20
10
10
90
90
80
80
70
70
60
60
50
50
40
40
30
30
20
20
10
10
0
0
0
0
0
0
-75
-75
-75
-75
0
0
-50
-50
-50
-50
0.1
0.1
I
I
OUT
OUT
Drop vs. temperature
Efficiency vs. output current
Efficiency vs. temperature
Typical performance characteristics
-25
-25
-25
-25
=700mA
=700mA
V
V
IN
IN
0.2
0.2
=V
=V
EN
EN
0
0
0
0
, V
, V
=3V, I
=3V, I
OUT
OUT
0.3
0.3
=2.7V, Duty cycle=100%
=2.7V, Duty cycle=100%
25
25
25
25
OUT
OUT
=from 10mA to 700mA, V
=from 10mA to 700mA, V
I
I
OUT
OUT
T [°C]
T [°C]
T [°C]
T [°C]
50
50
0.4
0.4
50
50
[A]
[A]
V
V
75
75
75
75
IN
IN
0.5
0.5
=V
=V
EN
EN
100
100
100 125 150 175
100 125 150 175
=3.6V, V
=3.6V, V
I
I
OUT
OUT
I
I
0.6
0.6
OUT
OUT
=700mA
=700mA
125
125
=100mA
=100mA
OUT
OUT
OUT
OUT
=1.8V
=1.8V
=1.2V
=1.2V
0.7
0.7
150
150
11/20
175
175
0.8
0.8