ST1S12XX18 STMICROELECTRONICS [STMicroelectronics], ST1S12XX18 Datasheet - Page 6

• Manufacturer Part Number: ST1S12XX18
• Description: Synchronous rectification with enable, 0.7 A, 1.7 MHz fixed or adjustable step-down switching regulator in TSOT23-5L
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

4
Table 6.
Note:
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
FB
EN
ν
EN
Q
O
IN
/ΔV
/ΔI
/ΔI
/ΔI
-N NMOS switch on resistance
-P PMOS switch on resistance
S
O
O
O
IN
1
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
Electrical characteristics for ST1S12G
V
specified. Typical values are referred to 25 °C)
FB
Guaranteed by design, but not tested in production.
IN
pin bias current
=V
EN
Parameter
Note 1
= 3.6 V, C
IN
= 4.7 µF, C
T
I
V
V
V
Device ON, V
Device OFF
V
I
I
I
Note 1
I
I
I
t
I
Note 1
O
O
SW
SW
O
O
O
R
O
J
IN
EN
IN
IN
= 10mA to 0.7A
= 10mA to 700mA
= 10mA to 100mA, V
= 100mA to 0.7A, V
= 100mA to 700mA, T
= t
= 10mA to I
=-40 to 125°C
=V
= 2.5 to 5.5V
= 2.5V to 5.5V
= 100 mA
= 100 mA
= 0, T = -40°C to 85°C
F
O
≥ 200ns, C
EN,
Test conditions
=10 µF, L = 2.2 µH, T
V
FB
IN
O
=0.65V
=short, T
= 2.5 to 5.5V
Note 1
O
Note 1
=22µF
Note 1
O
O
A
A
= 1.8V
= 1.8V
= 25°C
= 25°C
Note 1
J
= -40 to 125 °C (unless otherwise
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
%
%
V
V
A
V
Ω
Ω
A
/ΔV
/mA
O
O
IN