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L6728D 数据表(PDF) 4 Page - STMicroelectronics

部件名 L6728D
功能描述  Single-phase PWM controller with Power Good
PDF  33 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6728D 数据表(HTML) 4 Page - STMicroelectronics

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Typical application circuit and block diagram
L6728D
4/33
Doc ID 16498 Rev 1
1
Typical application circuit and block diagram
1.1
Application circuit
Figure 1.
Typical application circuit of the L6728D
1.2
Block diagram
Figure 2.
Block diagram of the L6728D
1
3
2
BOOT
UGATE
PHASE
LGATE
/ OC
4
HS
LS
VIN = 1.5V to 12V
L
COUT
Vout
LOAD
CHF
CBULK
CDEC
FB
8
RFB
COMP
/ DIS
7
RF
CF
CP
GND
VCC
VCC = 5V to 12V
6
5
L6728A Reference Schematic
ROCSET
PGOOD
RPG
PGOOD
VSEN
10
9
ROS
ROS
RFB
L6728D
L6728D
BOOT
LGATE
/ OC
UGATE
GND
HS
LS
VCC
ERROR AMPLIFIER
+
-
0.8V
300 kHz
OSCILLATOR
PWM
PHASE
CONTROL LOGIC
&
PROTECTIONS
VOCTH
OC
L6728A
I
OCSET
PGOOD
VSEN
VOUT MONITOR
CLOCK
L6728D



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