STEVAL-ISA026V1 STMicroelectronics, STEVAL-ISA026V1 Datasheet - Page 27

• Manufacturer Part Number: STEVAL-ISA026V1
• Description: EVAL BOARD 20A 250KHZ L6732
• Manufacturer: STMicroelectronics
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of STEVAL-ISA026V1

• Design Resources: STEVAL-ISA026V1 Gerber Files STEVAL-ISA026V1 Schematic STEVAL-ISA026V1 Bill of Material
• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 3.3V
• Current - Output: 20A
• Voltage - Input: 4.5 ~ 14V
• Regulator Topology: Buck
• Frequency - Switching: 250kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6732
• Input Voltage: 4.5 V to 14 V
• Output Voltage: 3.3 V
• Product: Power Management Modules
• Silicon Manufacturer: ST Micro
• Silicon Core Number: L6732
• Kit Application Type: Power Management - Voltage Regulator
• Rohs Compliant: No
• 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: L6732
• Other names: 497-5869

L6732
7
7.1
L6732 demonstration board
20 A board description and PCB layout
L6732 20 A demonstration board realizes in a four layer PCB a step-down DC/DC converter
and shows the operation of the device in a general purpose application. The input voltage
can range from 4.5 V to 14 V and the output voltage is at 3.3 V. The module can deliver an
output current in excess of 20 A. The switching frequency is set at 250 kHz (controller free-
running Fsw) but it can be set to 500 kHz acting on the EAREF pin.
Figure 20. Demonstration board schematic
PGOOD
EXT REF
GIN
VCC
SYNCH
VIN
J1
VCCDR
R13
C8
R5
R6
R8
J2
C7
PGOOD
SYNCH
EAREF
VCC
GND
C5
C10
1
16
7
3
2
15
VCCDR
R7
D1
L6732
8
OCL
12
BOOT
U1
R9
5
9
OCH
COMP
C2
C3
R4
R2
C9
VFB
11
10
14
13
4
6
PHASE
LGATE
PGND
SS
HGATE
C11
R11
R10
Q1-3
Q4-6
C4
R1
L6732 demonstration board
D3
R3
C1
R12
C15
C12-C13
L1
C16-C19
27/37
GOUT
VOUT