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L7983 数据表(PDF) 3 Page - STMicroelectronics

部件名 L7983
功能描述  60 V, 300 mA synchronous step-down switching regulator with 10 μA quiescent current
PDF  43 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L7983 数据表(HTML) 3 Page - STMicroelectronics

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1
Application schematic and block diagram
1.1
Application circuit
Figure 1. Typical application circuit
VIN
EN/UVLO
FSW
VCC
LX
VOUT(FB)
VBIAS
RST
LNM/LCM
GND
EP
VIN
GND
GND
VOUT
RESET
L7983
Figure 2. Block diagram
VIN
EN/UVLO
FSW
VCC
LNM/LCM
RST
LX
VOUT(FB)
VBIAS
GND
LOGIC
and
CONTROL
DRIVER
and
ANTI XC
VIN MONITOR
UVLO
+
-
LDO
+
-
+
-
+
-
gm
BIAS
and
REFERENCE
VREF
SOFT-START
CONTROL
VMAX
VMIN
+
-
SENSE
SENSE
SLOPE
IPK
VIN
LX
LX
FSW SET
HS MOS
LS MOS
OTP
MONITOR
PWM
ENABLE
ENABLE
END SS
END SS
CLOCK
CLOCK
COMP
+
-
OVP
SYNCH
IVY
LX
VCC
VCC
ZCD
LX
+
+
CLOCK
L7983
Application schematic and block diagram
DS13354 - Rev 1
page 3/43



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