ST1S03A STMicroelectronics, ST1S03A Datasheet - Page 6

• Manufacturer Part Number: ST1S03A
• Description: step-down switching regulator
• Manufacturer: STMicroelectronics

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Electrical characteristics
4
Table 4.
Note: 1 Guaranteed by design, but not tested in production
6/14
%V
%V
%V
%V
I
Symbol
O
PWMf
T
D
T
V
=Short
V
I
SHDN
I
FB
I
MIN
MAX
SW
HYS
@
I
I
I
O
O
O
O
FB
INH
ν
DS
Q
O
O
/ΔV
/ΔI
/ΔI
/ΔI
S
O
O
O
I
Electrical characteristics
(V
otherwise specified. Typical values are referred to 25°C)
IN_SW
Feedback voltage
V
Quiescent current
Inhibit threshold
Output current
Output current
Minimum output current
Reference line regulation
Reference load regulation
PWM Switching frequency
Maximum duty cycle
Switching current limitation
Switch V
Efficiency
Thermal shutdown
Thermal shutdown hysteresis
Load transient response
Short circuit removal response
Electrical characteristics
FB
Pin bias current
= V
DS
IN_A
Parameter
= V
INH
= 5V, C
I
= 4.7µF, C
V
V
Device ON
Device OFF
V
V
V
I
V
I
I
I
Note: 1
Note: 1
I
t
I
Note: 1
O
SW
O
O
O
R
O
INH
INH
I
I
I
FB
= 2.7 to 5.5V
= 2.7 to 5.5V
= 2.7V to 5.5V
= 10mA to 1.5A
= 10mA to 100mA, V
= 100mA to 1.5A, V
= 100mA to 1.5A, T
= t
= 10mA to short, T
= 800mA
= 0.8V, T
F
> 1.2V
< 0.4V
≥ 100ns,
Test conditions
O
= 22µF, L1 = 3.3µH, T
A
= 25°C
Note: 1
A
A
O
Note: 1
= 25°C
O
= 25°C
= 3.3V
= 3.3V
Min.
784
130
1.2
1.5
0.8
1.2
2.5
-10
J
70
85
-3
1
= 0 to 125°C (unless
Typ.
800
150
0.2
0.2
1.5
87
15
Max.
816
600
200
+10
1.5
0.4
1.8
+3
1
ST1S03A
%V
%V
MHz
%V
%V
Unit
mV
mA
mA
ΔI
mV
ΔV
nA
µA
°C
°C
%
%
V
A
A
A
O
O
O
O
O
I
/
/