STEVAL-ISA039V1 STMicroelectronics, STEVAL-ISA039V1 Datasheet - Page 12

• Manufacturer Part Number: STEVAL-ISA039V1
• Description: BOARD EVAL BASED ON L6727
• Manufacturer: STMicroelectronics
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of STEVAL-ISA039V1

• Design Resources: STEVAL-ISA039V1 Gerber Files L6727 Eval Board Schematic STEVAL-ISA039V1 Bill of Materials
• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.25V
• Current - Output: 5A
• Voltage - Input: 5 ~ 12V
• Regulator Topology: Buck
• Frequency - Switching: 300kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6727
• Input Voltage: 5 V to 12 V
• Output Voltage: 1.25 V
• Product: Power Management Modules
• 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: L6727
• Other names: 497-8266

Soft-start and disable
6.2
12/34
Enable / disable
The device can be disabled by externally pushing COMP / DIS pin under 0.5 V (typ). In
disable condition HS and LS MOSFETs are turned off, and a 20 μA current is sourced from
COMP / DIS pin. Setting free the pin, this current pulls it over the threshold and the device
enables again performing a new SS.
To disable the device, the external pull-down needs to overcome 10 mA of COMP output
current for about 15 μs. Once disabled, COMP output current drops to 20μA.
Figure 5.
Start up sequence; V
Doc ID 12933 Rev 4
CC
= 5V (Left) overcurrent hiccup (Right)
L6727