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The STEVAL-ISA141V1 evaluation board is based on the STBB3J fixed-frequency, high-efficiency, buck-boost DC-DC converter providing 1.2 to 5.5 V output voltages starting from a 1.8 to 5.5 V input voltage.
The 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 selecting between auto mode and forced PWM mode, taking advantage of either a lower power consumption or the best dynamic performance.主要特性
- 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
All resources
产品规格 (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 21 Dec 2020 |
21 Dec 2020
|
Evaluation Board Terms of Use (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 07 Oct 2020 |
07 Oct 2020
|
All resources
Board Manufacturing Specifications (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| ZIP | 19 Mar 2015 |
19 Mar 2015
|
物料清单 (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 19 Mar 2015 |
19 Mar 2015
|
Schematic Pack (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 21 Dec 2020 |
21 Dec 2020
|
质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | WEEE Compliant | 材料声明** |
|---|---|---|---|---|---|---|
| STEVAL-ISA141V1 |
批量生产
|
CARD | 工业 | Ecopack2 | - |
|
STEVAL-ISA141V1
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 。
样片和购买
| 产品型号 | 从分销商订购 | 从ST订购 | 核心产品 | 供货状态 | 供应商 | ECCN (US) | ECCN (EU) | Country of Origin | Board production status | Budgetary Price (US$)*/Qty | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| STEVAL-ISA141V1 | 1 distributors | STBB3J |
批量生产
|
- | EAR99 | NEC | ITALY | - | 42.0 / 1 |
核心产品
STBB3J供货状态
批量生产Budgetary Price (US$)*/Qty
42.0 / 1