STEVAL-ISA025V1 STMicroelectronics, STEVAL-ISA025V1 Datasheet - Page 32

• 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
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effectively turned-on and the regulation can be lost. Thanks to the “bootstrap anti-
discharging system” the bootstrap cap is always kept charged. The following picture shows
the behaviour of the device in the following conditions: 12 V -> 3.3 V@0 A.
It can be observed that between two pulses trains the low-side is turned-on in order to keep
the bootstrap cap charged.
Figure 27. 12 V -> 3.3 V@0 A in no-sink
Minimum Bootstrap Voltage
Doc ID 11938 Rev 3
Pulse train
V
I
L6730 - L6730B
L
BOOT
V
PHASE