TPS54880 具有定序的 5V 输入 8A 同步降压转换器
TPS54880 描述
As a member of the SWIFTTM family of dc/dc regulators, the TPS54880 low-input voltage high-output current synchronous buck PWM converter integrates all required active components. Using the TRACKIN pin with other regulators, simultaneous power up and down are easily implemented. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance and flexibility in choosing the output filter L and C components; an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 3.8 V; an internally or externally set slow-start circuit to limit inrush currents; and a power good output useful for processor/logic reset.
The TPS54880 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPADTM package, which eliminates bulky heatsinks.
The TPS54880 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPADTM package, which eliminates bulky heatsinks.
|
TPS54380 |
TPS54680 |
TPS54880 |
TPS54980 |
| Iout(Max)(A) |
3 |
6 |
8 |
9 |
| Vin(Min)(V) |
3 |
3 |
4 |
3 |
| Vin(Max)(V) |
6 |
6 |
6 |
4 |
| Vout(Min)(V) |
0.9 |
0.9 |
0.9 |
0.9 |
| Vout(Max)(V) |
4.5 |
4.5 |
3.3 |
2.5 |
| Iq(Typ)(mA) |
6.2 |
11 |
11 |
11 |
| Switching Frequency(Max)(kHz) |
700 |
700 |
700 |
700 |
| Switch Current Limit(Typ)(A) |
4 |
7.2 |
9 |
11 |
| Topology |
Buck |
Buck |
Buck |
Buck |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
0 to 70 |
| Pin/Package |
20HTSSOP |
28HTSSOP |
28HTSSOP |
28HTSSOP |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
| Duty Cycle(Max)(%) |
90 |
90 |
90 |
90 |
| Vout2(Min)(V) |
|
0.8 |
0.9 |
0.9 |
| Vout2(Max)(V) |
|
25.2 |
3.3 |
2.5 |
| Regulated Outputs(#) |
1 |
1 |
1 |
1 |
| Thermal Shutdown |
|
yes |
yes |
yes |
TPS54880 特性
- Power Up/Down Tracking For Sequencing
- 30-mOhm, 12-A Peak MOSFET Switches for High Efficiency at 8-A Continuous Output Source or Sink Current
- Wide PWM Frequency:
Fixed 350 kHz or Adjustable 280 kHz to 700 kHz
- Power Good and Enable
- Load Protected by Peak Current Limit and Thermal Shutdown
- Integrated Solution Reduces Board Area and Component Count
- APPLICATIONS
- Low-Voltage, High-Density Distributed Power Systems
- Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors Requiring Sequencing
- Broadband, Networking and Optical Communications Infrastructure
TPS54880 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 |
| TPS54880PWP |
ACTIVE |
-40 to 85 |
2.50 | 1ku |
HTSSOP (PWP) | 28 |
50 | TUBE |
TPS54880 |
| TPS54880PWPG4 |
ACTIVE |
-40 to 85 |
2.50 | 1ku |
HTSSOP (PWP) | 28 |
50 | TUBE |
TPS54880 |
| TPS54880PWPR |
ACTIVE |
-40 to 85 |
2.25 | 1ku |
HTSSOP (PWP) | 28 |
2000 | LARGE T&R |
TPS54880 |
| TPS54880PWPRG4 |
ACTIVE |
-40 to 85 |
2.25 | 1ku |
HTSSOP (PWP) | 28 |
2000 | LARGE T&R |
TPS54880 |
TPS54880 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 |
| TPS54880PWP |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS54880PWP |
| TPS54880PWPG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS54880PWPG4 |
TPS54880PWPG4 |
| TPS54880PWPR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS54880PWPR |
| TPS54880PWPRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS54880PWPRG4 |
TPS54880PWPRG4 |
TPS54880 应用技术支持与电子电路设计开发资源下载
- TPS54880 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)
TPS54880 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| 多电压同步定序 8A DC/DC 转换器 |
TPS54880EVM |
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 |