TPS40222 采用 3mm SON 封装的 1.6A 1.25MHz 降压转换器
|
TPS40222 |
| Iout(Max)(A) |
1.6 |
| Vin(Min)(V) |
4.5 |
| Vin(Max)(V) |
8 |
| Vout(Min)(V) |
0.8 |
| Vout(Max)(V) |
7 |
| Iq(Typ)(mA) |
1 |
| Switching Frequency(Typ)(kHz) |
1250 |
| Switch Current Limit(Typ)(A) |
2.1 |
| Topology |
Buck |
| Operating Temperature Range(°C) |
-40 to 125 |
| Pin/Package |
6VSON |
| Rating |
Catalog |
| Duty Cycle(Max)(%) |
90 |
| Regulated Outputs(#) |
1 |
| Thermal Shutdown |
Yes |
TPS40222 描述
The TPS40222 is a fixed-frequency, current-mode, non-synchronous buck converter optimized for applications powered by a 5-V distributed source. With internally determined operating frequency, soft-start time, and control loop compensation, the TPS40222 provides many features with a minimum of external components.
The TPS40222 operates at 1.25 MHz and supports up to 1.6-A output loads. The output voltage can be programmed to as low as 0.8 V. The TPS40222 utilizes pulse-by-pulse current limit as well as frequency foldback to protect the converter during a catastrophic short circuited output condition
TPS40222 特性
- Input Voltage Range 4.5 VDC to 8 VDC
- Output Voltage (0.8 V to 90% VIN)
- 0 A to 1.6 A Current Capability
- Fixed 1.25-MHz Switching Frequency
- Reference 0.8 V ±1%
- Internal 250 mOhm N-Channel MOSFET Switch
- Current Mode Control with Internal Slope Compensation
- Internal Soft-Start
- Internal Loop Compensation
- Short Circuit Protection
- Thermal Shutdown
- High Efficiency Up to 92%
- Small 3 mm × 3 mm SON Package
- APPLICATIONS
- Disk Drives
- Set Top Box
- Point of Load Power
- ASIC Power Supplies
TPS40222 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 |
| TPS40222DRPR |
ACTIVE |
-40 to 125 |
0.70 | 1ku |
VSON (DRP) | 6 |
3000 | LARGE T&R |
0222 |
| TPS40222DRPRG4 |
ACTIVE |
-40 to 125 |
0.70 | 1ku |
VSON (DRP) | 6 |
3000 | LARGE T&R |
0222 |
| TPS40222DRPT |
ACTIVE |
-40 to 125 |
0.80 | 1ku |
VSON (DRP) | 6 |
250 | SMALL T&R |
0222 |
| TPS40222DRPTG4 |
ACTIVE |
-40 to 125 |
0.80 | 1ku |
VSON (DRP) | 6 |
250 | SMALL T&R |
0222 |
TPS40222 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 |
| TPS40222DRPR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS40222DRPR |
| TPS40222DRPRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS40222DRPRG4 |
TPS40222DRPRG4 |
| TPS40222DRPT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS40222DRPT |
| TPS40222DRPTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS40222DRPTG4 |
TPS40222DRPTG4 |
TPS40222 应用技术支持与电子电路设计开发资源下载
- TPS40222 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)
TPS40222 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| 5V 输入、1.6A 非同步降压转换器评估模块 |
TPS40222EVM-001 |
Texas Instruments |
开发电路板/EVM |