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ST750AC Datenblatt(PDF) 7 Page - STMicroelectronics

Teilenummer ST750AC
Bauteilbeschribung  Adjustable step-down, current-mode PWM DC-DC converters
PDF  14 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST750AC Datenblatt(HTML) 7 Page - STMicroelectronics

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ST750A
Electrical characteristics
7/14
5
Electrical characteristics
Table 4.
Electrical characteristics (VCC=5V, IO = 0mA, TA = TMIN to TMAX, unless otherwise
specified).
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VCC
Input voltage
4
11
V
VO
Output voltage
VCC = 6 to 11V, IO = 0 to 450mA
4.75
5
5.25
V
ΔVO
Line regulation
VCC = 4 to 11V
0.15
%/V
ΔVO
Load regulation
IO = 0 to 450mA
0.005
%/mA
η
Power efficiency
IO = 300mA
92
%
ISUPPLY Supply current
ON Mode
0.8
2.5
mA
OFF Mode, SHDN = 0
0.3
100
µA
VIH
SHDN Input high threshold
2
V
VIL
SHDN Input low threshold
VCC Falling
0.25
V
ISHDN
Shutdown input leakage current ILX = 500mA
1
μA
VLOCK
Under voltage lockout
VCC = 12V, VLX = 0V
2.7
3
V
RDS(on) LX On resistance
TA = 25°C
0.5
Ω
ILX
LX Leakage current
1
µA
VREF
Reference voltage
1.17
1.24
1.31
V
ΔVREF Temperature reference drift
50
ppm/°C
fOSC
Switching frequency
C series
160
200
280
KHz
RC
Compensation pin impedance
7500
Ω



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