STBB2:800 mA 2.5 MHz, high efficiency dual mode buck-boost DC-DC converter

The STBB2 is a fixed frequency, high efficiency, buck-boost DC-DC converter which provides output voltages from 1.2 V to 4.5 V starting from input voltage from 2.4 V to 5.5 V. The device can operate with input voltages higher than, equal to, or lower than the output voltage making the product suitable for single Li-Ion, multi-cell alkaline or NiMH applications where the output voltage is within the battery voltage range. The low-RDS(on)N-channel and P-channel MOSFET switches are integrated and help to achieve high efficiency. The MODE pin allows the selection between auto mode and forced PWM mode, taking advantage from either lower power consumption or best dynamic performance. The bypass function allows the battery power saving. In this operating mode, the high-side switches are turned on so that the output voltage is equal to the input voltage; in this condition the current consumption is reduced to a maximum of 5 μA. The device also includes soft-start control, thermal shutdown, and current limit. The STBB2 is packaged in Flip Chip 20 bumps with 0.4 mm pitch.

Key Features

  • Operating input voltage range from 2.4 V to 5.5 V
  • ± 2% output voltage tolerance over process and temperature variations
  • Bypass power save function
  • Selectable output voltage with dedicated VSEL pin
  • Very fast line and load transients
  • 2.5 MHz switching frequency
  • Power save mode (PS) at light load
  • Typical efficiency higher than 90%
  • 50 μA max. quiescent current
  • Flip Chip 20 bumps 0.4 mm pitch 2.1 x 1.8 mm
产品规格
DescriptionVersionSize
DS8863: 800 mA 2.5 MHz, high efficiency dual mode buck-boost DC-DC converter9.02 MB
手册
DescriptionVersionSize
Brochure Power management guide05.20167 MB
解决方案评估工具
型号制造商Description
STEVAL-ISA109V2800 mA, 3 MHz, adjustable output high efficiency dual-mode buck-boost DC-DC converter based on the STBB2
样片和购买
型号QuantityUnit Price (US$) *PackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)ECCN (EU)ECCN (US)Country of Origin
STBB2JAD-R10001.074Chip Scale Package 0.4mm pitchTape And Reel--NECEAR99CHINA
STBB2J29-R10001.074Chip Scale Package 0.4mm pitchTape And Reel-4085NECEAR99-
STBB2J30-R10001.074Chip Scale Package 0.4mm pitchTape And Reel--NECEAR99-
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
STBB2JAD-RChip Scale Package 0.4mm pitchIndustrialEcopack2md_g0-wspc-csps0.4-wspc-17-20_mzg0ui74abe-wspc-(stbb2jad-r)-wspc-wcp-wspc-ver2_signed.pdf
md_g0-wspc-csps0.4-wspc-17-20_mzg0ui74abe-wspc-(stbb2jad-r)-wspc-wcp-wspc-ver2.xml
STBB2J29-RChip Scale Package 0.4mm pitchIndustrialEcopack2
STBB2J30-RChip Scale Package 0.4mm pitchIndustrialEcopack2md_g0-wspc-csps0.4-wspc-17-20_mzg0ux69aa5-wspc-(stbb2j30-r)-wspc-wcp-wspc-ver2_signed.pdf
md_g0-wspc-csps0.4-wspc-17-20_mzg0ux69aa5-wspc-(stbb2j30-r)-wspc-wcp-wspc-ver2.xml
800 mA 2.5 MHz, high efficiency dual mode buck-boost DC-DC converter STBB2
Very low drop voltage regulators with inhibit KFXX
md_g0-wspc-csps0.4-wspc-17-20_mzg0ui74abe-wspc-(stbb2jad-r)-wspc-wcp-wspc-ver2_signed.pdf STBB2
md_g0-wspc-csps0.4-wspc-17-20_mzg0ui74abe-wspc-(stbb2jad-r)-wspc-wcp-wspc-ver2.xml STBB2
md_g0-wspc-csps0.4-wspc-17-20_mzg0ux69aa5-wspc-(stbb2j30-r)-wspc-wcp-wspc-ver2_signed.pdf STBB2
md_g0-wspc-csps0.4-wspc-17-20_mzg0ux69aa5-wspc-(stbb2j30-r)-wspc-wcp-wspc-ver2.xml STBB2