STEVAL-ISA027V1 STMicroelectronics, STEVAL-ISA027V1 Datasheet - Page 9
![BOARD EVAL 1PH STPDN CONV L6726A](/photos/9/13/91314/steval-isa027v1_sml.jpg)
STEVAL-ISA027V1
Manufacturer Part Number
STEVAL-ISA027V1
Description
BOARD EVAL 1PH STPDN CONV L6726A
Manufacturer
STMicroelectronics
Type
DC/DC Switching Converters, Regulators & Controllersr
Specifications of STEVAL-ISA027V1
Design Resources
STEVAL-ISA027V1 Gerber Files STEVAL-ISA027V1 Schematic STEVAL-ISA027V1 Bill of Material
Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
1.25V
Current - Output
20A
Voltage - Input
5 ~ 12V
Regulator Topology
Buck
Frequency - Switching
270kHz
Board Type
Fully Populated
Utilized Ic / Part
L6726A
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
L6726A
Other names
497-6259
L6726A
4
Device description
L6726A is a single-phase PWM controller with embedded high-current drivers that provides
complete control logic and protections to realize in an easy and simple way a general DC-
DC step-down converter. Designed to drive N-channel MOSFETs in a synchronous buck
topology, with its high level of integration this 8-pin device allows reducing cost and size of
the power supply solution.
L6726A is designed to operate from a 5 V or 12 V supply bus. Thanks to the high precision
0.8V internal reference, the output voltage can be precisely regulated to as low as 0.8 V with
±1% accuracy over line and temperature variations (between 0 °C and +70 °C). The
switching frequency is internally set to 270 kHz.
This device provides a simple control loop with externally compensated transconductance
error-amplifier and programmable soft start. Low-side-less feature allows the device to
perform soft-start over pre-charged output avoiding negative spikes at the load side.
In order to avoid load damages, L6726A provides programmable threshold over current
protection. Output current is monitored across low-side MOSFET R
expensive and space-consuming sense resistor. L6726A also features FB disconnection
protection, preventing dangerous uncontrolled output voltages in case of floating FB pin.
Doc ID 12754 Rev 4
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Device description
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