TPS40002 低输入 (2.25V-5.5V) 300kHz 频率同步降压控制器，仅用作源控制器
TPS40002 描述
The TPS4000x are controllers for low-voltage, non-isolated synchronous buck regulators. These controllers drive an N-channel MOSFET for the primary buck switch, and an N-channel MOSFET for the synchronous rectifier switch, thereby achieving very high-efficiency power conversion. In addition, the device controls the delays from main switch off to rectifier turn-on and from rectifier turn-off to main switch turn-on in such a way as to minimize diode losses (both conduction and recovery) in the synchronous rectifier with TI’s proprietary Predictive Gate Drive™ technology. The reduction in these losses is significant and increases efficiency. For a given converter power level, smaller FETs can be used, or heat sinking can be reduced or even eliminated.
|
TPS40000 |
TPS40002 |
TPS40007 |
TPS40009 |
| Topology |
Buck |
Buck |
Buck |
Buck |
| Vin(Min)(V) |
2.25 |
2.25 |
2.25 |
2.25 |
| Vin(Max)(V) |
5.5 |
5.5 |
5.5 |
5.5 |
| Vout(Min)(V) |
0.7 |
0.7 |
0.7 |
0.7 |
| Vout(Max)(V) |
4 |
4 |
4 |
4 |
| Regulated Outputs(#) |
1 |
1 |
1 |
1 |
| Iout(Max)(A) |
15 |
15 |
15 |
15 |
| Switching Frequency(Max)(kHz) |
300 |
600 |
300 |
600 |
| Iq(Typ)(mA) |
1.5 |
1.5 |
1.5 |
1.5 |
| Pin/Package |
10MSOP-PowerPAD |
10MSOP-PowerPAD |
10MSOP-PowerPAD |
10MSOP-PowerPAD |
| Thermal Shutdown |
Yes |
Yes |
Yes |
Yes |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
| Duty Cycle(Max)(%) |
87 |
83 |
87 |
83 |
TPS40002 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 Overcurrent Limit
- Source-Only Current or Source/Sink Current
- Versions for Starting into VOUT Pre-Bias
- 10-Lead MSOP PowerPad™ Package for Higher Performance
- Thermal Shutdown
- Internal Boostrap Diode
- Fixed-Frequency, Voltage-Mode Control
- TPS40000/1/4 300-kHz
- TPS40002/3/5 600-kHz
- APPLICATIONS
- Networking Equipment
- Telecom Equipment
- Base Stations
- Servers
- DSP Power
- Power Modules
TPS40002 芯片订购指南
TPS40002 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 |
| TPS40002DGQ |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS40002DGQ |
| TPS40002DGQG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS40002DGQG4 |
TPS40002DGQG4 |
| TPS40002DGQR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS40002DGQR |
| TPS40002DGQRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS40002DGQRG4 |
TPS40002DGQRG4 |
TPS40002 应用技术支持与电子电路设计开发资源下载
- TPS40002 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)
TPS40002 参考设计
| 说明 |
型号 |
公司 |
| 具有 3.0-3.6V 输入电压的同步降压控制器 |
PR070 |
Texas Instruments |
| 输入电压 2.25-3.3V 的同步降压 |
PR072 |
Texas Instruments |
| 输入电压 3.0-5V 的同步降压 |
PR073 |
Texas Instruments |
| 输入电压 3.0-5V 的同步降压控制器 |
PR071 |
Texas Instruments |
