TPS54428DDAR 原装 DC-DC
TPS54428 4.5-V to 18-V Input, 4-A Synchronous Step-Down Converter With Eco-Mode™
TPS54428DDAR 原装 DC-DC 的技术参数：
|
类别 |
集成电路（IC）PMIC -稳压器- DC DC开关稳压器 |
|
制造商 |
Texas Instruments |
|
系列 |
D-CAP2™, Eco-Mode™ |
|
功能 |
降压 |
|
输出配置 |
正 |
|
拓扑 |
降压 |
|
输出类型 |
可调式 |
|
输出数 |
1 |
|
电压-输入（min） |
4.5V |
|
电压-输入（max） |
18V |
|
电压-输出（max） |
7V |
|
电流-输出 |
4A |
|
频率-开关 |
650kHz |
|
同步整流器 |
是 |
|
工作温度 |
-40°C ~ 85°C（TA） |
|
安装类型 |
表面贴装型 |
|
封装/外壳 |
8-PowerSOIC（0.154"，3.90mm宽） |
TPS54428DDAR 原装 DC-DC 的描述：
The TPS54428 is an adaptive on-time D-CAP2™mode synchronous buck converter.
The TPS54428 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54428 uses the DCAP2™mode control that provides a fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™operation at light loads. Eco-mode™allows the TPS54428 to maintain high efficiency during lighter load conditions.
The TPS54428 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7.0 V. The device also features an adjustable soft start time. The TPS54428 is available in 8-pin DDA package and 10-pin DRC packages, and is designed to operate over the ambient temperature range of–40°C to 85°C.
询价
