ST1S12G12R STMicroelectronics, ST1S12G12R Datasheet - Page 6

• 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

Electrical characteristics
4
Table 6.
1. Guaranteed by design, but not tested in production.
6/20
%V
R
%V
R
%V
%V
Symbol
PWMf
T
DSON
DSON
D
T
I
V
SHDN
V
I
O
SWL
FB
I
MAX
HYS
I
I
O
O
O
EN
FB
EN
ν
Q
O
IN
/ΔV
/ΔI
/ΔI
/ΔI
-N NMOS switch on resistance
-P PMOS switch on resistance
S
O
O
O
IN
Feedback voltage
V
Minimum input voltage
Quiescent current
Output current
Enable threshold
Enable pin current
Reference line regulation
Reference load regulation
PWM switching frequency
Maximum duty cycle
Switching current limitation
Efficiency
Thermal shutdown
Thermal shutdown hysteresis
Load transient response
Short circuit removal
response
Electrical characteristics
V
otherwise specified. Typical values are referred to 25 °C).
Electrical characteristics for ST1S12G
FB
IN
pin bias current
= V
EN
Parameter
(1)
= 3.6 V, C
IN
= 4.7 µF, C
T
I
V
V
V
Device ON, V
Device OFF
V
I
I
I
(1)
I
I
I
t
I
T
O
O
SW
SW
O
O
O
R
O
A
J
IN
EN
IN
IN
= 100mA to 700mA, T
= t
= 10mA to 0.7A
= 10 mA to 700mA
= 10mA to 100 mA, V
= 100mA to 0.7A, V
= 10mA to I
= -40 to 125°C
= 25°C
Doc ID 14314 Rev 3
= 2.5V to 5.5 V
= 2.5V to 5.5V
= V
= 100mA
= 100mA
= 0, T
F
≥ 200ns, C
O
EN,
Test conditions
= 10 µF, L = 2.2 µH, T
J
(1)
V
= -40°C to 85°C
FB
IN
O
= 0.65V
= short,
= 2.5V to 5.5V
O
(1)
=22µF
(1)
(1)
O
O
A
= 1.8V
ST1S12XX, ST1S12XX12, ST1S12XX18
= 25°C
(1)
= 1.8V
J
= - 40 to 125 °C (unless
Min.
1.16
582
130
-50
2.5
0.7
1.5
-10
-5
0.0025 0.005 %V
Typ.
0.05
0.25
0.25
600
500
150
1.7
1.6
80
90
15
Max.
2.08
0.45
618
600
100
+10
0.5
0.1
0.4
50
+5
1
1
%V
%V
%V
MHz
Unit
O
nA
µA
µA
µA
°C
°C
O
%
%
Ω
Ω
V
V
A
V
A
/ΔV
/mA
O
O
IN