IC CTRLR PWM 1PHASE SO-8

L6726A

Manufacturer Part NumberL6726A
DescriptionIC CTRLR PWM 1PHASE SO-8
ManufacturerSTMicroelectronics
TypeStep-Down (Buck)
L6726A datasheet
 


Specifications of L6726A

Internal Switch(s)NoSynchronous RectifierNo
Number Of Outputs1Voltage - OutputAdj to 0.8V
Frequency - Switching270kHzVoltage - Input1.5 ~ 12 V
Operating Temperature-20°C ~ 85°CMounting TypeSurface Mount
Package / Case8-SOIC (3.9mm Width)Output Current1.5 A
Input Voltage4.1 V to 13.2 VOperating Temperature Range- 40 C to + 150 C
Mounting StyleSMD/SMTFor Use With497-9046 - BOARD EVAL BASED ON L6726A497-6364 - BOARD DEMO FOR TS4995EIJT497-6259 - BOARD EVAL 1PH STPDN CONV L6726A
Lead Free Status / RoHS StatusLead free / RoHS CompliantCurrent - Output-
Power - Output-  
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Page 31
32
Page 32
33
Page 33
34
Page 34
35
Page 35
Page 31/35

Download datasheet (987Kb)Embed
PrevNext
L6726A
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
100
95
90
85
80
75
70
65
60
55
50
0
1
2
Output Current [A]
Doc ID 12754 Rev 4
5 A demonstration board
Vin = 12V, Vout = 1.25V
Vin = 5V, Vout = 1.25V
Vin = 12V, Vout = 2.5V
Vin = 5V, Vout = 2.5V
3
4
5
6
31/35