L6728AHTR STMicroelectronics, L6728AHTR Datasheet - Page 4

• Manufacturer Part Number: L6728AHTR
• Description: IC CTLR PWM SGL PHASE 10-VFQFPN
• Manufacturer: STMicroelectronics

Specifications of L6728AHTR

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 660kHz
• Duty Cycle: 67%
• Voltage - Supply: 5 V ~ 12 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 10-VFQFN, 10-VFQFPN
• Frequency-max: 660kHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8977-2

Typical application circuit and block diagram
1
1.1
1.2
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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
L6728AH
OUT
R
R
OSCILLATOR
L6728A
PG
FB
R
600 kHz
OS
MONITOR
10
7
8
9
COMP
FB
/ DIS
PGOOD
VSEN
L6728AH
CLOCK
Doc ID 15726 Rev 1
VCC
GND
R
6
FB
UGATE
PHASE
5
LGATE
BOOT
/ OC
CONTROL LOGIC
PROTECTIONS
ERROR AMPLIFIER
R
OCSET
&
1
3
2
4
PWM
+
-
HS
LS
OC
0.8V
C
HF
L
I
V
OCSET
IN
V
OCTH
= 1.5V to 12V
C
C
BULK
HS
LS
OUT
VCC
L6728AH
LOAD
Vout
BOOT
UGATE
PHASE
LGATE
/ OC
GND