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

Image

×

设计

技术文档

产品规格
Description Version Size
DB1572 DB1572: 3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package 1.1 275 KB

硬件资源

Board Manufacturing Specifications
Description Version Size
STEVAL-ISA069V1 gerber files 1.0 76 KB
Bill of Materials
Description Version Size
STEVAL-ISA069V1 BOM 1.0 36 KB
Schematic Packs
Description Version Size
STEVAL-ISA069V1 schematics 1.0 26 KB

法律

许可协议
Description Version Size
Evaluation products license agreement 1.0 125 KB
支持和社区

样片和购买

型号 Core Product Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STEVAL-ISA069V1 ST1S31 Active 51.45 1 NEC EAR99 ITALY MORE INFO 直接购买 Add to cart DISTRIBUTOR AVAILABILITY
test

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

质量和可靠性

型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STEVAL-ISA069V1 ActiveCARDIndustrialEcopack2
test

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

×