STEVAL-ISA025V1 STMicroelectronics, STEVAL-ISA025V1 Datasheet - Page 30

• Manufacturer Part Number: STEVAL-ISA025V1
• Description: EVAL BOARD 30A 400KHZ L6730
• Manufacturer: STMicroelectronics
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of STEVAL-ISA025V1

• Design Resources: STEVAL-ISA025V1 Gerber Files STEVAL-ISA025V1 Schematic STEVAL-ISA025V1 Bill of Materials
• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 3.3V
• Current - Output: 30A
• Voltage - Input: 4.5 ~ 14V
• Regulator Topology: Buck
• Frequency - Switching: 400kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6730
• Input Voltage: 4.5 V to 14 V
• Output Voltage: 3.3 V
• Product: Power Management Modules
• Silicon Manufacturer: ST Micro
• Silicon Core Number: L6730
• 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: L6730
• Other names: 497-5868

Device description
5.14
30/52
Figure 25. 14 V -> 0.5 V@820 kHz, 5 A
Bootstrap anti-discharging system
This built-in anti-discharging system keeps the voltage going across the bootstrap capacitor
from going below 3.3 V. An internal comparator senses the voltage across the external
bootstrap capacitor and helps to keep it charged, eventually turning on the low-side
MOSFET for approximately 200 ns. If the bootstrap capacitor is not charged up enough, the
high-side MOSFET cannot be effectively turned on and it will present a higher R
some cases, the OCP can be also triggered. There are up to two conditions during which
the bootstrap capacitor can be discharged:
●
●
fan power supply failure, and
no sink at zero current operation.
Doc ID 11938 Rev 3
50ns
L6730 - L6730B
DS(on)
. In