ST1S03
Table 5: Electrical Characteristics (V
= V
= 5V, C = 4.7µF, C = 22µF, L1 = 3.3µH, T = 0 to
IN_A I O J
IN_SW
125°C, unless otherwise specified. Typical values are referred to 25°C)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
FB
Feedback Voltage
Feedback PSRR
784
800
-60
816
mV
dB
PSRR
1Hz < Frequency V
IN
I
V
Pin Bias Current
FB
600
2.5
nA
FB
BW
Bandwidth of Error Amplifier Closed Loop
300
KHz
mA
I
Quiescent Current
No Switching
Q
I
Output Current
V
V
=3V to 16V
= 3V to 16V
1.5
1
A
OUT
IN
I
Minimum Output Current
Reference Line Regulation
mA
MIN
%V
∆V
/
/
0.032
0.06 %V
OUT
OUT
IN
/∆V
IN
IN
%V
Reference Load Regulation
I
= 10mA to 1.2A
0.0014 0.003 %V
OUT
OUT
OUT
∆I
/mA
OUT
PWM f
PWM Switching Frequency
(1)
V
= 0.8V, T =25°C
1.2
1.5
87
1.8
MHz
S
FB
A
D
Maximum Duty Cycle
%
A
MAX
I
Switching Current Limitation
1.65
SWL
V
Switch V
I
= 750 mA
200
350
mV
%
DS
DS
SW
E
Efficiency
IOUT =10mA to 1.2A
70
T
Thermal Shut Down (1)
130
150
15
°C
°C
SHDN
T
Thermal Shut Down
Hysteresis (1)
HYS
∆V
∆I
/
/
Load Transient Response
(1)
I
= 100mA to 700mA
-5
+5
+5
%V
OUT
OUT
OUT
O
t = t ≥ 100ns, T = 25°C
R
F
A
∆V
∆I
Short Circuit Removal
Response (1)
I
= 10mA to short, T = 25°C
%V
OUT
OUT
A
O
OUT
@I = short
O
NOTE 1: Guaranteed by design, not tested in production.
3/11
STMICROELECTRONICS [ ST ]
