STEVAL-ISA028V1 STMicroelectronics, STEVAL-ISA028V1 Datasheet - Page 30

• Manufacturer Part Number: STEVAL-ISA028V1
• Description: BOARD EVAL 1PH STPDWN CONV L6727
• Manufacturer: STMicroelectronics
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of STEVAL-ISA028V1

• Design Resources: STEVAL-ISA028V1 Gerber Files STEVAL-ISA028V1 Schematic STEVAL-ISA028V1 Bill of Materials
• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.25V
• Current - Output: 20A
• Voltage - Input: 5 ~ 12V
• Regulator Topology: Buck
• Frequency - Switching: 300kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6727
• Input Voltage: 5 V to 12 V
• Output Voltage: 1.25 V
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: L6727
• Other names: 497-6258

5 A demonstration board
12.1
12.1.1
12.1.2
12.1.3
12.1.4
12.1.5
30/34
Board description
Power input (VIN)
This is the input voltage for the power conversion. The high-side MOSFET drain is
connected to this input. Supply must be compliant with VIN recommended operating
conditions and capacitors rating.
If VIN voltage is compliant also to VCC range listed in recommended operating conditions, it
can supply also the device through R16 resistor.
Power iutput (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.
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.
Test points
The following test points are provided to allow easy probing of important signals:
Demonstration board efficiency
Figure 19. 5 A demonstration board efficiency
–
–
–
–
–
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.
Doc ID 12933 Rev 4
L6727