产品概要
描述
The STEVAL-ISA198V1 product evaluation board is a step-down switching power supply based on the L7987L regulator in an HTSSOP16 package. The output voltage can be set starting from 0.8 V. Low drop-out operation, due to the advanced integrated switch management, can be achieved.
The L7987L is a 61 V, 2 A step-down asynchronous switching regulator with embedded power MOSFET capable of delivering up to 2 A of current, depending on the application conditions.
The embedded switch-over feature on the VBIAS pin and the light load management (pulse skipping) help maximize power conversion efficiency across the entire load range.
The soft-start, current limit threshold and switching frequency are adjustable for application optimization.
The device includes an internal 250 kHz oscillator that can be externally adjusted up to 1.5 MHz; two L7987L regulators can be synchronized in a 180° out-of-phase configuration for reduced total input RMS current.
-
性能一览
- 4.5 V to 60 V input voltage
- Step-down (buck) conversion
- 5 V output voltage (VIN > 6 V)
- Up to 2 A DC output current
- 500 kHz switching frequency
- 5 ms programmed soft-start
- Compliant with ceramic output capacitors
- 180° out of phase synchronization available
- Auto recovery overcurrent and thermal protection
- RoHS compliant
特别推荐
所有资源
| Resource title | 版本 | Latest update | Actions | Details | 下載 |
|---|
SIMPLIS models (1)
| Resource title | 版本 | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| ZIP | 2024.06 | 04 Mar 2025 | 04 Mar 2025 |
Board Manufacturing Specifications (1)
| Resource title | 版本 | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| ZIP | 1.0 | 14 Dec 2016 | 14 Dec 2016 |
BOM (1)
| Resource title | 版本 | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| 1.0 | 14 Dec 2016 | 14 Dec 2016 |
Schematic Pack (1)
| Resource title | 版本 | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| 1.0 | 14 Dec 2016 | 14 Dec 2016 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | 符合RoHS级别 | WEEE Compliant | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|---|
| STEVAL-ISA198V1 | Active 产品已量产 | CARD | Industrial | Ecopack2 | - | - | - | |
STEVAL-ISA198V1
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。
You’re now leaving st.com and will be re-directed to our Partner’s website.
For the latest innovations and solutions from ST, sign up for our newsletters.
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-ISA198V1 | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
|
|
|
STEVAL-ISA198V1 Active