TPS40021 增强型低输入 (2.25V-5.5V)、最高频率 1MHz 的同步 降压控制器，具有输出驱动/吸入电流
|
TPS40020 |
TPS40021 |
| Topology |
Buck |
Buck |
| Vin(Min)(V) |
2.25 |
2.25 |
| Vin(Max)(V) |
5.5 |
5.5 |
| Vout(Min)(V) |
0.7 |
0.7 |
| Vout(Max)(V) |
4 |
4 |
| Regulated Outputs(#) |
1 |
1 |
| Iout(Max)(A) |
25 |
25 |
| Switching Frequency(Max)(kHz) |
1000 |
1000 |
| Iq(Typ)(mA) |
1.5 |
1.5 |
| Pin/Package |
16HTSSOP |
16HTSSOP |
| Thermal Shutdown |
Yes |
Yes |
| Rating |
Catalog |
Catalog |
| Duty Cycle(Max)(%) |
85 |
85 |
TPS40021 描述
The TPS4002x family of dc-to-dc controllers are designed for non-isolated synchronous buck regulators, providing enhanced operation and design flexability through user programmability.
The TPS4002x utilizes a proprietary Predictive Gate Drive™ technology to minimize the diode conduction losses associated with the high-side and synchronous rectifier N-channel MOSFET transistions. The integrated charge pump with boost circuit provides a regulated 5-V gate drive for both the high side and synchronous rectifier N-channel MOSFETs. The use of the Predictive Gate Drive™ technology and charge pump/boost circuits combine to provide a highly efficient, smaller and less expensive converter.
Design flexibility is provided through user programmability of such functions as: operating frequency, short circuit current detection thresholds, soft-start ramp time, and external synchronization frequency
TPS40021 特性
- Operating Input Voltage 2.25 V to 5.5 V
- Output Voltage as Low as 0.7 V
- 1% Internal 0.7 V Reference
- Predictive Gate Drive™ N-Channel MOSFET Drivers for Higher Efficiency
- Externally Adjustable Soft-Start and Short Circuit Current Limit
- Programmable Fixed-Frequency 100 kHz-to-1 MHz Voltage-Mode Control
- Source-Only Current or Source/Sink Current
- Quick Response Output Transient Comparators with Power Good Indication Provide Output Status
- 16-Pin PowerPAD™ Package
- APPLICATIONS
- Networking Equipment
- Telecom Equipment
- Base Stations
- Servers
- DSP Power
TPS40021 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 |
| TPS40021PWP |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
HTSSOP (PWP) | 16 |
90 | TUBE |
40021 |
| TPS40021PWPG4 |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
HTSSOP (PWP) | 16 |
90 | TUBE |
40021 |
| TPS40021PWPR |
ACTIVE |
-40 to 85 |
1.15 | 1ku |
HTSSOP (PWP) | 16 |
2000 | LARGE T&R |
40021 |
| TPS40021PWPRG4 |
ACTIVE |
-40 to 85 |
1.15 | 1ku |
HTSSOP (PWP) | 16 |
2000 | LARGE T&R |
40021 |
TPS40021 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 |
| TPS40021PWP |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS40021PWP |
| TPS40021PWPG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS40021PWPG4 |
TPS40021PWPG4 |
| TPS40021PWPR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS40021PWPR |
| TPS40021PWPRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS40021PWPRG4 |
TPS40021PWPRG4 |
TPS40021 应用技术支持与电子电路设计开发资源下载
- TPS40021 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)
TPS40021 参考设计
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS40020 5V 输入、1.5V 输出、20A 评估模块 |
TPS40020EVM-001 |
Texas Instruments |
开发电路板/EVM |
| TPS40021 5V 输入、1.5V 输出、20A 评估模块 |
TPS40021EVM-001 |
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 |
