L6728ATR STMicroelectronics, L6728ATR Datasheet - Page 7

• Manufacturer Part Number: L6728ATR
• Description: IC CTLR PWM SGL HI FREQ 10VFQFPN
• Manufacturer: STMicroelectronics

Specifications of L6728ATR

• 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-DFN
• Frequency-max: 660kHz
• 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
• Synchronous Pin: No
• For Use With: 497-8228 - BOARD EVALUATION W/L6728497-6418 - BOARD EVAL BASED ON L6728
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8324-2

L6728A
3
3.1
3.2
Table 5.
Supply current and power-on
I
I
UVLO
Oscillator
F
ΔV
d
Reference and error amplifier
A
GBWP
SR
DIS
CC
BOOT
MAX
SW
0
Symbol
OSC
Electrical specifications
Absolute maximum ratings
Table 4.
Electrical characteristics
Electrical characteristics
(V
V
V
V
V
V
BOOT supply current
V
Hysteresis
Main oscillator accuracy
PWM ramp amplitude
Maximum duty cycle
Output voltage accuracy
DC gain
Gain-bandwidth product
Slew-rate
Disable threshold
CC
BOOT,
PHASE
LGATE
CC
CC
CC
Symbol
supply current
turn-ON
= 5 V to 12 V; T
V
Parameter
UGATE
(1)
(1)
Absolute maximum ratings
to GND
to PHASE
to GND
to GND; t < 200 ns
to GND
to GND; t < 200 ns
to GND
FB, COMP, VSEN to GND
PGOOD to GND
J
(1)
= 0
UGATE and LGATE = OPEN
UGATE = OPEN; PHASE to GND
V
COMP falling
°
C to 70 °C unless otherwise specified)
CC
rising
Parameter
Test conditions
Min.
0.70
-0.8
540
67
Electrical specifications
-0.3 to V
-0.3 to V
-0.3 to 3.6
-0.3 to 15
-5 to 18
-8 to 30
Typ.
600
120
0.7
0.2
1.4
Value
15
6
8
-
15
33
45
CC
CC
+0.3
+0.3
Max.
0.85
660
4.1
0.8
MHz
V/μs
Unit
kHz
mA
mA
Unit
dB
%
%
V
V
V
V
7/32
V
V
V
V
V
V