TPS54974 双输入总线 (3.3, 2.5V) 9A 输出同步降压转换器
|
TPS54974 |
| Iout(Max)(A) |
9 |
| Vin(Min)(V) |
2.2 |
| Vin(Max)(V) |
2.8 |
| Vout(Min)(V) |
0.9 |
| Vout(Max)(V) |
2.0 |
| Iq(Typ)(mA) |
11 |
| Switching Frequency(Max)(kHz) |
700 |
| Switch Current Limit(Typ)(A) |
11 |
| Topology |
Buck |
| Operating Temperature Range(°C) |
-40 to 85 |
| Pin/Package |
28HTSSOP |
| Rating |
Catalog |
| Duty Cycle(Max)(%) |
90 |
| Regulated Outputs(#) |
1 |
| Thermal Shutdown |
yes |
TPS54974 描述
As a member of the SWIFT™ family of dc/dc regulators, the TPS54974 low-input voltage, high-output current synchronous buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high-performance, voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter L and C components; an undervoltage-lockout circuit to prevent start-up until the VIN input voltage reaches 3 V; an internally and externally set slow-start circuit to limit in-rush currents; and a power-good output useful for processor/logic reset, fault signaling, and supply sequencing.
The TPS54974 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks.
TPS54974 特性
- Low Voltage Separate Power Bus
- 15-m
TPS54974 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS54974PWP |
ACTIVE |
-40 to 85 |
5.05 | 1ku |
HTSSOP (PWP) | 28 |
50 | TUBE |
TPS54974 |
| TPS54974PWPG4 |
ACTIVE |
-40 to 85 |
5.05 | 1ku |
HTSSOP (PWP) | 28 |
50 | TUBE |
TPS54974 |
| TPS54974PWPR |
ACTIVE |
-40 to 85 |
4.60 | 1ku |
HTSSOP (PWP) | 28 |
2000 | LARGE T&R |
TPS54974 |
| TPS54974PWPRG4 |
ACTIVE |
-40 to 85 |
4.60 | 1ku |
HTSSOP (PWP) | 28 |
2000 | LARGE T&R |
TPS54974 |
TPS54974 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| TPS54974PWP |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS54974PWP |
| TPS54974PWPG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS54974PWPG4 |
TPS54974PWPG4 |
| TPS54974PWPR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS54974PWPR |
| TPS54974PWPRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS54974PWPRG4 |
TPS54974PWPRG4 |
TPS54974 应用技术支持与电子电路设计开发资源下载
- TPS54974 数据资料 dataSheet 下载.PDF
- TI 德州仪器非隔离式开关 DC/DC 调节器选型与价格参考 . xls
- Dual MOSFET Driver
(PDF 498 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- Understanding Boost Power Stages In Switchmode Power Supplies
(PDF 149 KB)
- Understanding Buck Power Stages In Switchmode Power Supplies
(PDF 173 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
TPS54974 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| 9A、3V 至 4V 输入电压 SWIFT™ 转换器评估模块 |
TPS54974EVM-367 |
Texas Instruments |
开发电路板/EVM |
| SwitcherPro(TM) 开关电源设计工具 |
SWITCHERPRO |
Texas Instruments |
应用软件 |
TPS54974 参考设计
| 说明 |
型号 |
公司 |
| 3-A, 600-kHz Dual Wide-Input Buck Converter |
PMP2808 |
Texas Instruments |
