STEVAL-ISA069V1:3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package

The STEVAL-ISA069V1 demonstration board is based on the ST1S31, which is an internally compensated 1.5 MHz fixed-frequency PWM synchronous step-down regulator. This device operates from 2.8 V to 5.5 V input, while it regulates an output voltage as low as 0.8 V and up to Vin.

The peak current mode control with internal compensation delivers a very compact solution with a minimum component count.

Key Features

  • 4 A peak output current
  • From 2.8 V to 5.5 V input voltage
  • Output voltage adjustable from 0.8 V
  • 1.5 MHz switching frequency
  • Internal soft-start and enable
  • Integrated 60 mΩ and 45 mΩ power MOSFETs
  • All ceramic capacitors
  • Power Good (POR)
  • Cycle-by-cycle current limiting
  • Current foldback short-circuit protection
  • RoHS compliant
Product Specifications
DescriptionVersionSize
DB1572: 3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package1.1275 KB
Board Manufacturing Specifications
DescriptionVersionSize
STEVAL-ISA069V1 gerber files1.076 KB
Bill of Materials
DescriptionVersionSize
STEVAL-ISA069V1 BOM1.036 KB
Schematic Packs
DescriptionVersionSize
STEVAL-ISA069V1 schematics1.026 KB
License Agreement
DescriptionVersionSize
Evaluation products license agreement1.0125 KB
Sample & Buy
Part NumberCore ProductUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STEVAL-ISA069V1ST1S3151.451NECEAR99ITALY
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
STEVAL-ISA069V1CARDIndustrialEcopack2
3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package STEVAL-ISA069V1
3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package STEVAL-ISA069V1
3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package STEVAL-ISA069V1
3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package STEVAL-ISA069V1
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 ST-LINK-V2