L6728ATR STMicroelectronics, L6728ATR Datasheet - Page 29
L6728ATR
Manufacturer Part Number
L6728ATR
Description
IC CTLR PWM SGL HI FREQ 10VFQFPN
Manufacturer
STMicroelectronics
Datasheet
1.L6728ATR.pdf
(32 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
L6728A
12.2
Demonstration board characterization
Figure 16
terms of accuracy and efficiency.
Figure 16. 5 A demonstration board performances
Figure 17. Demonstration boards power consumption @ 0 A output current
-0,1%
-0,2%
-0,3%
100%
1,2
1,0
0,8
0,6
0,4
0,2
0,0
0,3%
0,2%
0,1%
0,0%
90%
80%
70%
60%
50%
40%
4
0,0
4
5
0,5
5
and
6
1,0
6
5A Demoboard Power Consumption
Figure 17
7
1,5
7
Load / Line Regulation
Input Voltage @ 8 V
8
2,0
8
Output Current [A]
Input Voltage [V]
Input Voltage [V]
9
2,5
9
show the electrical performances of the demonstration board in
Vout = 0.8 V
Vout = 2.5 V
Vout = 5 V
10
3,0
10
0A
11
3,5
11
4,0
12
12
2.5A
Vout = 1.25 V
Vout = 3.3 V
4,5
13
13
5,0
14
14
5A
5,5
15
15
100%
1,2
1,0
0,8
0,6
0,4
0,2
0,0
100%
90%
80%
70%
60%
50%
40%
90%
80%
70%
60%
50%
40%
4
0,0
0,0
5
0,5
0,5
6
1,0
1,0
20A Demoboard Power Consumption
7
1,5
1,5
Input Voltage @ 12 V
Input Voltage @ 5 V
8
2,0
2,0
5A demonstration board
Input Voltage [V]
Output Current [A]
Output Current [A]
9
2,5
2,5
Vout = 0.8 V
Vout = 2.5 V
Vout = 0.8 V
Vout = 2.5 V
Vout = 5 V
10
3,0
3,0
11
3,5
3,5
4,0
12
4,0
Vout = 1.25 V
Vout = 3.3 V
Vout = 1.25 V
Vout = 3.3 V
Vout = 8 V
4,5
4,5
13
5,0
5,0
14
29/32
5,5
5,5
15