产品概要
描述
The STEVAL-ISA141V2 is a product evaluation board based on the STBB3JCC fixed frequency, high efficiency, buck-boost DC-DC converter. The STBB3JCC is capable of driving a HB WLED from a 1.8 V to 5.5 V input voltage supplied by a one cell Li-Ion battery. Thanks to its high switching frequency (2 MHz) it is possible to reduce the size and cost of the external power components. Low FB voltage (100 mV) reduces power dissipation across the external sensing resistor and maximizes the LED current.
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性能一览
- 100 mV voltage feedback
- 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 greater 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 (by external synchronous square signal)
- Device quiescent current less than 50 A
- Load disconnect during shutdown
- Shutdown function and soft-start
- Shutdown current < 1 A
- Available in Flip Chip 20, pitch = 0.4 mm
- RoHS compliant
所有资源
| Resource title | 版本 | Latest update | Actions | Details | 下載 |
|---|
Board Manufacturing Specifications (1)
| Resource title | 版本 | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| ZIP | 1.0 | 01 Aug 2015 | 01 Aug 2015 |
BOM (1)
| Resource title | 版本 | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| 1.0 | 01 Aug 2015 | 01 Aug 2015 |
Schematic Pack (1)
| Resource title | 版本 | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| 2.0 | 01 Aug 2015 | 01 Aug 2015 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | 符合RoHS级别 | WEEE Compliant | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|---|
| STEVAL-ISA141V2 | NRND 不推荐用于新设计。量产仅供支持现有生产。 | CARD | Industrial | Ecopack2 | - | - | - | |
STEVAL-ISA141V2
Package:
CARDMaterial Declaration**:
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
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Sample & Buy
| Part Number | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Supplier | Core Product | Board production status | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STEVAL-ISA141V2 | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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STEVAL-ISA141V2 NRND