High-efficiency monolithic synchronous step-down regulator based on the L6928

The STEVAL-ISA079V2 demonstration board is based on the L6928 DC-DC monolithic regulator, specifically designed to provide extremely high efficiency.

The L6928 supply voltage can be as low as 2.0 V, allowing its use in single Li-Ion cell supplied applications.

The output voltage can be selected by an external divider down to 0.6 V. The duty cycle can saturate to 100%, allowing low dropout operation.

Key Features

  • 2.0 V to 5.5 V battery input range
  • High efficiency: up to 95%
  • Extremely low quiescent current
  • 1 μA max shutdown supply current
  • 800 mA max output current
  • Adjustable output voltage from 0.6 V
  • Low dropout operation: up to 100% duty cycle
  • ± 1% output voltage accuracy
  • 1.4 MHz switching frequency
  • Externally synchronizable from 1 MHz to 2 MHz
  • Short-circuit protection
  • RoHS compliant

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设计

技术文档

产品规格
Description Version Size
DB1440 DB1440: High-efficiency monolithic synchronous step-down regulator based on the L6928 2.1 100 KB

硬件资源

Bill of Materials
Description Version Size
STEVAL-ISA079V2 BOM 1.0 71 KB
Schematic Packs
Description Version Size
STEVAL-ISA079V2 schematics 1.0 51 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-ISA079V2 L6928Q1 Active 31.85 1 NEC EAR99 ITALY MORE INFO 直接购买 Add to cart DISTRIBUTOR AVAILABILITY
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(*) 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-ISA079V2 ActiveCARDIndustrialEcopack2
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(**) 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.

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