ST1S12XX12 STMicroelectronics, ST1S12XX12 Datasheet - Page 6

• Manufacturer Part Number: ST1S12XX12
• Description: Synchronous rectification with inhibit, 0.7 A, 1.7 MHz fixed, step-down switching regulator
• Manufacturer: STMicroelectronics

Specifications of ST1S12XX12

• Typical Efficiency: > 90%
• Not Switching Quiescent Current: max 650 μA over temperature range

Electrical characteristics
4
Table 6.
1. Guaranteed by design, but not tested in production.
6/20
%V
R
R
%V
%V
%V
Symbol
PWMf
T
DSON
DSON
D
T
I
V
SHDN
V
SWL
I
O
FB
I
MAX
HYS
I
I
O
O
O
FB
EN
ν
EN
Q
O
/ΔV
IN
/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
= t
= 10mA to 0.7A
= 10 mA to 700mA
= 10mA to 100 mA, V
= 100mA to 0.7A, V
= 100mA to 700mA, T
= 10mA to I
= -40 to 125°C
= 25°C
Doc ID 14314 Rev 5
= 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
650
100
+10
0.5
0.1
0.4
50
+5
1
1
%V
%V
%V
MHz
Unit
mV
O
nA
µA
µA
µA
°C
°C
O
%
%
Ω
Ω
V
A
V
A
/ΔV
/mA
O
O
IN