STEVAL-ISA024V1 STMicroelectronics, STEVAL-ISA024V1 Datasheet - Page 22

• Manufacturer Part Number: STEVAL-ISA024V1
• Description: EVAL BOARD 20A 250KHZ L6725
• Manufacturer: STMicroelectronics
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of STEVAL-ISA024V1

• 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: L6725
• Input Voltage: 4.5 V to 14 V
• Output Voltage: 3.3 V
• Product: Power Management Modules
• Silicon Manufacturer: ST Micro
• Silicon Core Number: L6725
• 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: L6725
• Other names: 497-5867

Demoboard
7
7.1
Figure 16. Demoboard schematic
22/32
EXT REF
GIN
VCC
VIN
Demoboard
20A board description
L6725 demoboard 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 4.5V
to 14V and the output voltage is at 3.3V. The module can deliver an output current in excess of
20A. The switching frequency is set at 250kHz (controller free-running FBSWB) but it can be
set to 500kHz acting on the EAREF pin.
J1
C8
R5
R6
R8
J2
C7
EAREF
VCC
GND
C5
C10
12
3
15
11
VCCDR
R7
D1
L6725
4
OCL
8
BOOT
U1
R9
1
5
COMP
OCH
C2
C3
R2
R4
C9
VFB
16
10
2
7
6
9
PGND
SS
HGATE
PHASE
LGATE
C11
R11
R10
Q1-3
Q4-6
C4
R1
D3
R3
C1
R12
C15
C12-C13
L1
C16-C19
L6725 - L6725A
GOUT
VOUT