ST1S12XX12 STMicroelectronics, ST1S12XX12 Datasheet - Page 7

• 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

ST1S12XX, ST1S12XX12, ST1S12XX18
Table 7.
1. Guaranteed by design, but not tested in production.
%V
R
R
%V
%V
%V
Symbol
PWMf
T
DSON
DSON
T
OUT
I
V
SHDN
V
SWL
I
O
HYS
I
I
I
O
O
O
EN
ν
EN
O
Q
O
/ΔV
IN
/ΔI
/ΔI
/ΔI
-N NMOS switch on resistance
-P PMOS switch on resistance
S
O
O
O
IN
Output feedback pin
V
Minimum input voltage
Quiescent current
Output current
Enable threshold
Enable pin current
Reference line regulation
Reference load regulation
PWM switching frequency
Switching current limitation
Efficiency
Thermal shutdown
Thermal shutdown hysteresis
Load transient response
Short circuit removal
response
V
specified. Typical values are referred to 25 °C).
Electrical characteristics for ST1S12G12
O
IN
pin bias current
=V
EN
Parameter
(1)
= 3 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
= 10mA to 0.7A
= t
= 10mA to 700mA
= 10mA to 100mA
= 100mA to 0.7A
= 100mA to 700mA, T
= 10mA to I
=-40 to 125°C
= 25°C
Doc ID 14314 Rev 5
= 2.5V to 5.5V
= 2.5V to 5.5V
=V
O
= 100 mA
= 100 mA
= 0, T = -40°C to 85°C
F
=10 µF, L = 2.2 µH, T
≥ 200ns, C
EN,
Test conditions
V
(1)
FB
IN
=1.5V
O
= 2.5 to 5.5V
= short,
O
(1)
(1)
=22µF
(1)
A
= 25°C
(1)
J
= -40 to 125 °C (unless otherwise
1.164
Min.
1.16
130
2.5
0.7
1.5
-10
-5
Electrical characteristics
0.0025 0.005 %V
Typ.
0.05
0.25
0.25
500
150
1.2
1.7
1.6
15
80
85
15
1.236
Max.
2.08
0.45
650
+10
0.5
0.1
0.4
20
+5
1
1
%V
%V
%V
MHz
Unit
O
µA
µA
µA
µA
°C
°C
O
%
Ω
Ω
V
V
A
V
A
/ΔV
/mA
O
O
7/20
IN