STEVAL-ISA025V1 STMicroelectronics, STEVAL-ISA025V1 Datasheet - Page 15

• 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

L6730 - L6730B
5.2
5.3
Internal LDO
An internal LDO supplies the internal circuitry of the device. The input of this stage is the
V
Figure 5.
Bypassing the LDO to avoid the voltage drop with low Vcc
The LDO can be by passed by providing 5 V voltage directly to V
V
at least 1 μF capacitor to sustain the internal LDO during the recharge of the bootstrap
capacitor. V
CC/O/U pin (L6730B) and PGOOD pin (see
If Vcc
The maximum LDO output current is about 100 mA, and so the output voltage drop can be
100 mV. The LDO can be bypassed to avoid this.
CC
CCDR
4.5V÷14V
pin and the output (5 V) is the V
≈
pins must be shorted together as shown in
5 V the internal LDO works in dropout with an output resistance of about 1 Ω.
CCDR
LDO block diagram
also represents a voltage reference for Tmask pin, S/O/U pin (L6730) or
LDO
Doc ID 11938 Rev 3
CCDR
pin (see
Table 4: Pin
Figure 6.
Figure
connection).
5).
V
CCDR
CCDR
pin must be filtered with
. In this case Vcc and
Device description
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