TPS5450-EP 增强型产品 5A 宽输入范围降压 SWIFT(tm) 转换器
|
TPS5450-EP |
| Iout(Max)(A) |
5 |
| Vin(Min)(V) |
5.5 |
| Vin(Max)(V) |
36 |
| Vout(Min)(V) |
1.22 |
| Vout(Max)(V) |
31 |
| Iq(Typ)(mA) |
3 |
| Switching Frequency(Max)(kHz) |
500 |
| Switch Current Limit(Typ)(A) |
6 |
| Topology |
Buck |
| Operating Temperature Range(°C) |
-55 to 125 |
| Pin/Package |
8SO PowerPAD |
| Rating |
HiRel Enhanced Product |
| Duty Cycle(Max)(%) |
89 |
TPS5450-EP 描述
As a member of the SWIFT™ family of DC/DC regulators, the TPS5450 is a high-output-current PWM converter that integrates a low-resistance high-side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions, an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 5.5 V, an internally set slow-start circuit to limit inrush currents, and a voltage feed-forward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection, and thermal shutdown.
TPS5450-EP 特性
- Qualified for Automotive Applications
- Wide Input Voltage Range: 5.5 V to 36 V
- Up to 5-A Continuous (6-A Peak) Output Current
- High Efficiency Greater than 90% Enabled by
110-mΩ Integrated MOSFET Switch
- Wide Output Voltage Range: Adjustable Down to
1.22 V with 1.5% Initial Accuracy
- Internal Compensation Minimizes External
Parts Count
- Fixed 500-kHz Switching Frequency for Small
Filter Size
- 18-µA Shutdown Supply Current
- Improved Line Regulation and Transient Response
by Input Voltage Feed Forward
- System Protected by Overcurrent Limiting,
Overvoltage Protection, and Thermal Shutdown
- Available in Small Thermally Enhanced 8-Pin
SOIC PowerPAD™ Package
- For SWIFT™ Documentation, Application Reports
and Design Software, See the TI Website at www.ti.com/swift
- APPLICATIONS
- High-Density Point-of-Load Regulators
- LCD Displays, Plasma Displays
- Battery Chargers
- 12-V/24-V Distributed Power Systems
- SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS
- Controlled Baseline
- One Assembly/Test Site
TPS5450-EP 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 |
| TPS5450MDDAREP |
ACTIVE |
-55 to 125 |
6.25 | 100u |
SO PowerPAD (DDA) | 8 |
2500 | LARGE T&R |
5450EP |
| V62/90644-01XE |
ACTIVE |
-55 to 125 |
6.25 | 100u |
SO PowerPAD (DDA) | 8 |
2500 | LARGE T&R |
5450EP |
TPS5450-EP 应用技术支持与电子电路设计开发资源下载
- TPS5450-EP 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)
