ST1S03 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'ST1S03' PDF : 17 Pages View PDF
Electrical characteristics
4
Electrical characteristics
ST1S03
Table 4.
Symbol
Electrical characteristics (VIN_SW = VIN_A = 5V, CI = 4.7µF, CO = 22µF, L1 = 3.3µH,
TJ = 0 to 125°C, unless otherwise specified. Typical values are referred to 25°C)
Parameter
Test Conditions
Min. Typ. Max. Unit
FB Feedback voltage
784 800 816 mV
PSRR
IFB
BW
IQ
IO
IMIN
Feedback PSRR
VFB Pin bias current
Bandwidth of error amplifier
Quiescent current
Output current
Minimum output current
%VO/∆VIN Reference line regulation
1Hz < Frequency VIN
Closed Loop
No Switching
VIN =3V to 16V
VIN = 3V to 16V
%VO/∆IO Reference load regulation
IO = 10mA to 1.2A
PWM fS PWM Switching frequency (1)
VFB = 0.8V, TA =25°C
DMAX Maximum duty cycle
ISWL Switching current limitation
VDS Switch VDS
ISW = 750 mA
E
TSHDN
THYS
Efficiency
Thermal shut down (1)
IO =10mA to 1.2A
Thermal shut down hysteresis (1)
∆VO/∆IO Load transient response (1)
IO = 100mA to 700mA
tR = tF ≥ 100ns, TA = 25°C
∆VO/∆IO@
IO=short
Short circuit removal response(1)
IO = 10mA to short, TA = 25°C
1. Guaranteed by design, but not tested in production.
-60
dB
600 nA
300
KHz
2.5 mA
1.5
A
1
mA
0.032
0.0014
0.06
%VO/
∆VIN
0.003
%VO/
mA
1.2
1.5
1.8 MHz
87
%
1.65
A
200 350 mV
70
%
130 150
°C
15
°C
-5
+5 %VO
+5 %VO
6/17
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