L6728A STMicroelectronics, L6728A Datasheet - Page 4

• Manufacturer Part Number: L6728A
• Description: Voltage Mode PWM Controllers Hi-Freq. singl-phase PWM controller w/Po
• Manufacturer: STMicroelectronics

Specifications of L6728A

• Number Of Outputs: Dual Output
• Topology: Buck
• Output Voltage: 0.8 V
• Output Current: 1500 mA
• Switching Frequency: 660 KHz
• Duty Cycle (max): 67 %
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Package / Case: VFDFPN-10 EP
• Synchronous Pin: No
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

L6728A
1
1.1
1.2
Typical application circuit and block diagram
Application circuit
Figure 1.
Block diagram
Figure 2.
V
PGOOD
CC
L6728A Reference Schematic
= 5V to 12V
PGOOD
VSEN
R
C
OS
P
C
Typical application circuit
DEC
Block diagram
C
R
F
F
V
OUT
R
R
OSCILLATOR
L6728A
PG
FB
R
600 kHz
OS
MONITOR
10
7
8
COMP
FB
9
PGOOD
/ DIS
VSEN
CLOCK
VCC
GND
R
6
FB
UGATE
PHASE
5
LGATE
BOOT
/ OC
CONTROL LOGIC
PROTECTIONS
ERROR AMPLIFIER
R
OCSET
&
1
3
2
4
Typical application circuit and block diagram
PWM
+
-
HS
LS
OC
0.8V
C
HF
L
I
V
OCSET
V
IN
OCTH
= 1.5V to 12V
C
C
BULK
HS
LS
OUT
VCC
LOAD
Vout
BOOT
UGATE
PHASE
LGATE
/ OC
GND
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