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ST1S10PUR датащи(PDF) 6 Page - STMicroelectronics

номер детали ST1S10PUR
подробное описание детали  3 A, 900 kHz, monolithic synchronous step-down regulator
PDF  26 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST1S10PUR датащи(HTML) 6 Page - STMicroelectronics

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Electrical characteristics
ST1S10
6/26
4
Electrical characteristics
Table 5.
Electrical characteristics
VIN = VIN_SW = VIN_A = VINH = 12 V, VSYNC = GND, VOUT = 5 V, IOUT = 10 mA, CIN = 4.7 µF
+0.1 µF, COUT = 22 µF, L1 = 3.3 µH, TJ = -25 to 125°C (Unless otherwise specified, refer to
the typical application circuit. Typical values assume TJ = 25°C)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VFB
Feedback voltage
TJ = 25°C
784
800
816
mV
TJ = -25°C to 125°C
776
800
824
mV
IFB
VFB pin bias current
600
nA
IQ
Quiescent current
VINH > 1.2 V, not switching
1.5
2.5
mA
VINH < 0.4 V
2
6
µA
IOUT
Output current (1)
VIN = 2.5 V to 18 V
VOUT = 0.8 V to 13.6 V
(2)
3.0
A
VINH
Inhibit threshold
Device ON
1.2
V
Device OFF
0.4
V
IINH
Inhibit pin current
2
µA
%VOUT/ΔVIN Reference line regulation
2.5 V < VIN < 18 V
0.4
%VOUT/
ΔVIN
%VOUT/
ΔIOUT
Reference load regulation
10 mA < IOUT < 3 A
0.5
%VOUT/
ΔIOUT
PWM fs
PWM switching frequency
VFB = 0.7 V, Sync = GND
TJ = 25°C
0.7
0.9
1.1
MHz
DMAX
Maximum duty cycle (2)
85
90
%
RDSon-N
NMOS switch on resistance
ISW = 750 mA
0.10
Ω
RDSon-P
PMOS switch on resistance
ISW = 750 mA
0.12
Ω
ISWL
Switch current limitation
5.0
A
ν
Efficiency
IOUT = 100 mA to 300 mA
85
%
IOUT = 300 mA to 3 A
90
%
TSHDN
Thermal shut down
150
°C
THYS
Thermal shut down hysteresis
15
°C
VOUT/ΔIOUT Output transient response
100 mA < IOUT < 1 A,
tR = tF ≥ 500 ns
±5%VO
VOUT/ΔIOUT
@IO=short
Short circuit removal response
(overshot)
10 mA < IOUT < short
±10
%VO
FSYNC
SYNC frequency capture range
VIN = 2.5 V to 18 V,
VSYNC = 0 to 5 V
0.4
1.2
MHz
SYNCWD
SYNC pulse width
VIN = 2.5 V to 18 V
250
ns
VIL_SYNC
SYNC input threshold low
VIN = 2.5 V to 18 V
0.4
V
VIH_SYNC
SYNC input threshold high
VIN = 2.5 V to 18 V
1.6
V



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