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
Board Manufacturing Specifications
Bill of Materials
Schematic Packs
License Agreement
Sample & Buy
| Part Number | Core Product | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| STEVAL-ISA141V1 | STBB3J | 42 | 1 | NEC | EAR99 | ITALY |
Quality & Reliability
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|
| STEVAL-ISA141V1 | CARD | Industrial | Ecopack2 | |
