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ST1S06 Arkusz danych(PDF) 6 Page - STMicroelectronics

Numer części ST1S06
Szczegółowy opis  Synchronous rectification with inhibit, 1.5A, 1.5 MHz fixed or adjustable, step-down switching regulator in DFN6 3x3
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Strona internetowa  http://www.st.com
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Electrical characteristics
ST1S06
6/19
4
Electrical characteristics
Table 4.
Electrical characteristics for ST1S06
(VIN_SW =VIN_A =VINH =5V, VO=1.2V, CI =4.7µF, CO =22µF, L1 =3.3µH, TJ =-30 to 125°C
(unless otherwise specified. Typical values are referred to TJ = 25°C)
Note: 1 Guaranteed by design, but not tested in production
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
FB
Feedback voltage
784
800
816
mV
IFB
VFB pin bias current
600
nA
VI
Minimum input voltage
IO= 10mA to 1.5A
2.7
V
IQ
Quiescent current
VINH > 1.2V
1.5
mA
VINH < 0.4V, TJ = -30°C to 85°C
1µA
IO
Output current
VI = 2.7 to 5.5V Note: 1
1.5
A
VINH
Inhibit threshold
Device ON, VI = 2.7 to 5.5V
1.3
V
Device ON, VI = 2.7 to 5V
1.2
Device OFF
0.4
IINH
Inhibit pin current
2µA
%VO/∆VI Reference line regulation
VI = 2.7V to 5.5V Note: 1
0.2
0.3
%VO/
∆VI
%VO/∆IO Reference load regulation
IO = 10mA to 1.5A Note: 1
0.2
0.3
%VO/
∆IO
PWMfS
PWM Switching frequency
VFB = 0.8V
1.2
1.5
1.8
MHz
DMAX
Maximum duty cycle
80
87
%
RDSON-N NMOS Switch on resistance
ISW = 750 mA
0.12
RDSON-P PMOS Switch on resistance
ISW = 750 mA
0.15
ISWL
Switching current limitation
Note: 1
2.3
A
ν
Efficiency
Note: 1
IO = 10mA to 100mA, VO = 3.3V
65
%
IO = 100mA to 1.5A, VO = 3.3V
85
90
TSHDN
Thermal shutdown
130
150
°C
THYS
Thermal shutdown hysteresis
15
°C
%VO/∆IO Load transient response
IO = 100mA to 750mA, TJ = 25°C
tR = tF ≥ 200ns, Note: 1
-5
+5
%VO
%VO/∆IO Short circuit removal response
IO = 10mA to IO=short, TJ = 25°C
Note: 1
-10
+10
%VO


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