参数资料
型号: L6726ATR
厂商: STMICROELECTRONICS
元件分类: 稳压器
英文描述: 1.5 A SWITCHING CONTROLLER, 297 kHz SWITCHING FREQ-MAX, PDSO8
封装: SOP-8
文件页数: 25/35页
文件大小: 986K
代理商: L6726ATR
L6726A
5 A demonstration board
Doc ID 12754 Rev 4
31/35
11.1.2
Power output (VOUT)
This is the output voltage of the power conversion. The output voltage is programmed to
1.25 V. It can be changed by replacing R13 (adjusting of compensation network may be
needed). Adding R18 allows to adjust OCP threshold.
11.1.3
IC additional supply (VCC)
The controller can be supplied separately from the power conversion through VCC input. In
this case, to separate VCC from VIN, R16 resistor must be removed.
11.1.4
Test points
The following test points are provided to allow easy probing of important signals:
COMP: output of the error amplifier;
FB: inverting input of the error amplifier;
PH: Phase pin of the device;
LG: Low-side gate pin of the device;
UG: High-side gate pin of the device.
11.1.5
Demonstration board efficiency
Figure 21.
5 A demonstration board efficiency
50
55
60
65
70
75
80
85
90
95
100
01
2
3
4
5
6
Output Current [A]
E
ff
ici
e
n
cy
[
%
]
Vin = 12V, Vout = 1.25V
Vin = 5V, Vout = 1.25V
Vin = 12V, Vout = 2.5V
Vin = 5V, Vout = 2.5V
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