IC DC-DC CONV STDN 1.8V TSOT23-5

ST1S12G18R

Manufacturer Part NumberST1S12G18R
DescriptionIC DC-DC CONV STDN 1.8V TSOT23-5
ManufacturerSTMicroelectronics
TypeStep-Down (Buck)
ST1S12G18R datasheet
 


Specifications of ST1S12G18R

Internal Switch(s)YesSynchronous RectifierYes
Number Of Outputs1Voltage - Output1.8V
Current - Output700mAFrequency - Switching1.7MHz
Voltage - Input2.5 ~ 5.5 VOperating Temperature-40°C ~ 85°C
Mounting TypeSurface MountPackage / CaseTSOT-23-5, TSOT-5, TSOP-5
For Use With497-8220 - BOARD EVAL BASED ON ST1S12497-8219 - BOARD EVAL BASED ON ST1S12Lead Free Status / RoHS StatusLead free / RoHS Compliant
Power - Output-Other names497-6831-2
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Electrical characteristics
4
Electrical characteristics
V
= V
= 3.6 V, C
IN
EN
otherwise specified. Typical values are referred to 25 °C).
Table 6.
Electrical characteristics for ST1S12G
Symbol
Parameter
FB
Feedback voltage
I
V
pin bias current
FB
FB
V
Minimum input voltage
IN
I
Quiescent current
Q
I
Output current
O
V
Enable threshold
EN
I
Enable pin current
EN
%V
/ΔV
Reference line regulation
O
IN
%V
/ΔI
Reference load regulation
O
O
PWMf
PWM switching frequency
S
D
Maximum duty cycle
MAX
R
-N NMOS switch on resistance
DSON
R
-P PMOS switch on resistance
DSON
I
Switching current limitation
SWL
ν
(1)
Efficiency
T
Thermal shutdown
SHDN
T
Thermal shutdown hysteresis
HYS
%V
/ΔI
Load transient response
O
O
Short circuit removal
%V
/ΔI
O
O
response
1. Guaranteed by design, but not tested in production.
6/20
= 4.7 µF, C
= 10 µF, L = 2.2 µH, T
IN
O
Test conditions
T
= -40 to 125°C
J
I
= 10mA to 0.7A
O
V
= V
V
= 0.65V
IN
EN,
FB
V
= 0, T
= -40°C to 85°C
EN
J
(1)
V
= 2.5V to 5.5 V
IN
Device ON, V
= 2.5V to 5.5V
IN
Device OFF
(1)
V
= 2.5V to 5.5V
IN
(1)
I
= 10 mA to 700mA
O
I
= 100mA
SW
I
= 100mA
SW
(1)
I
= 10mA to 100 mA, V
O
O
I
= 100mA to 0.7A, V
= 1.8V
O
O
I
= 100mA to 700mA, T
O
A
≥ 200ns, C
t
= t
=22µF
R
F
O
I
= 10mA to I
= short,
O
O
(1)
T
= 25°C
A
Doc ID 14314 Rev 3
ST1S12XX, ST1S12XX12, ST1S12XX18
= - 40 to 125 °C (unless
J
Min.
Typ.
Max.
582
600
618
-50
50
2.5
500
600
1
0.7
1.5
0.5
1
0.05
0.1
0.0025 0.005 %V
1.16
1.7
2.08
100
0.25
0.4
0.25
0.45
1.6
= 1.8V
80
90
130
150
15
= 25°C
-5
+5
(1)
-10
+10
Unit
V
nA
V
µA
µA
A
V
µA
%V
/ΔV
O
IN
/mA
O
MHz
%
Ω
Ω
A
%
°C
°C
%V
O
%V
O