ST2S08B:Dual synchronous rectification, 1.5 A, 1.5 MHz adjustable step-down switching regulator

The ST2S08B is a dual step-down DC-DC converter optimized for powering low-voltage digital cores in ODD applications and, generally, to replace the high current linear solution when the power dissipation may cause a high heating of the application environment. It provides up to 1.5 A over an input voltage range of 3 V to 5.5 V. A high switching frequency of 1.5 MHz allows the use of tiny surface-mounted components as well as a resistor divider to set the output voltage value. Only an inductor and two capacitors are required. A low output ripple is guaranteed by the current mode PWM topology and the utilization of low ESR SMD ceramic capacitors. The device is thermally protected and current limited. The ST2S08B is available in the QFN12L (4 x 4 mm) package.

Key Features

  • Step-down current mode PWM (1.5 MHz) DC-DC converter
  • Adjustable output voltage from 0.8 V
  • 2 % DC output voltage tolerance
  • Synchronous rectification
  • Integrated current limit
  • Inhibit function
  • Soft-start for start delay of 800 μs typ.
  • Typical efficiency: > 80 % at VOUT = 1.2 V
  • 1.5 A output current capability
  • Non-switching quiescent current: max 1.5 mA over temperature range
  • RDS(ON) 150 mΩ (typ.)
  • Uses tiny capacitors and inductors
  • Available in QFN12L (4 x 4 mm)
产品规格
DescriptionVersionSize
DS7049: Dual synchronous rectification, 1.5 A, 1.5 MHz adjustable step-down switching regulator2.0751 KB
手册
DescriptionVersionSize
Brochure Power management guide05.20167 MB
样片和购买
型号PackagePacking TypeUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
ST2S08BPQRVFQFPN 12 4x4x1.0Tape And Reel0.811000NECEAR99MALAYSIA
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
ST2S08BPQRVFQFPN 12 4x4x1.0IndustrialEcopack2md_z5-wspc-vfqfpn12_myz5-wspc-uq06aa5-wspc-lock.pdf
md_z5-wspc-vfqfpn12_myz5-wspc-uq06aa5.xml
Dual synchronous rectification, 1.5 A, 1.5 MHz adjustable step-down switching regulator ST2S08B
Very low drop voltage regulators with inhibit KFXX
md_z5-wspc-vfqfpn12_myz5-wspc-uq06aa5-wspc-lock.pdf ST2S08B
md_z5-wspc-vfqfpn12_myz5-wspc-uq06aa5.xml ST2S08B