STEVAL-ISA141V1:2 A, 2 MHz, Vout = 3.3 V, high-efficiency dual-mode buck-boost DC-DC converter based on the STBB3J

The STEVAL-ISA141V1 is a product evaluation board based on the STBB3J, which is a fixed-frequency, high-efficiency, buck-boost DC-DC converter which provides output voltages from 1.2 V to 5.5 V starting from an input voltage in the range of 1.8 V to 5.5 V. This device can operate with input voltages higher than, equal to, or lower than the output voltage making the product suitable for cell lithium-ion applications where the output voltage is within the battery voltage range.

The MODE pin allows the selection between auto mode and forced PWM mode, taking advantage of either a lower power consumption or best dynamic performance.

Key Features

  • Input voltage range from 1.8 V to 5.5 V
  • 2 A output current at 3.3 V in buck mode (VIN = 3.6 V to 5.5 V)
  • 800 mA output current at 3.3 V in boost mode (VIN 2.0 V)
  • Typical efficiency higher than 94%
  • ±2% DC feedback voltage tolerance
  • Automatic transition between step-down and boost mode
  • Adjustable output voltage from 1.2 V to 5.5 V
  • Power save mode (PS) at light load
  • 2.0 MHz fixed switching frequency
  • Adjustable switching frequency up to 2.4 MHz (external synchronous square signal)
  • Device quiescent current less than 50 µA
  • Load disconnect during shutdown
  • Shutdown and soft-start functions
  • Shutdown current <1 A
  • Available in Flip-Chip 20, pitch = 0.4 mm
  • RoHS compliant
Product Specifications
DescriptionVersionSize
DB2200: 2 A, 2 MHz, Vout = 3.3 V, high-efficiency dual-mode buck-boost DC-DC converter based on the STBB3J1.089 KB
Board Manufacturing Specifications
DescriptionVersionSize
STEVAL-ISA141V1 gerber files1.099 KB
Bill of Materials
DescriptionVersionSize
STEVAL-ISA141V1 BOM1.028 KB
Schematic Packs
DescriptionVersionSize
STEVAL-ISA141V1 schematics1.042 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-ISA141V1STBB3J421NECEAR99ITALY
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
STEVAL-ISA141V1CARDIndustrialEcopack2
2 A, 2 MHz, Vout = 3.3 V, high-efficiency dual-mode buck-boost DC-DC converter based on the STBB3J STEVAL-ISA141V1
2 A, 2 MHz, Vout = 3.3 V, high-efficiency dual-mode buck-boost DC-DC converter based on the STBB3J STEVAL-ISA141V1
2 A, 2 MHz, Vout = 3.3 V, high-efficiency dual-mode buck-boost DC-DC converter based on the STBB3J STEVAL-ISA141V1
2 A, 2 MHz, Vout = 3.3 V, high-efficiency dual-mode buck-boost DC-DC converter based on the STBB3J STEVAL-ISA141V1
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 ST-LINK-V2