2017年7月10日，我公司最新到货一批，数量：19300PCS;TPS54426PWPR是一款 具有轻载模式的 4.5V 至 18V 输入、4A 同步降压转换器，
描述：
The TPS54426 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54426 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54426 uses the D-CAP2™ mode control which provides a very 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 TPS54426 to maintain high efficiency during lighter load conditions. The TPS54426 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, 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 5.5 V. The device also features an adjustable soft start time and a power good function. The TPS54426 is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –40°C to 85°C.
特性：
D-CAP2™ Mode Enables Fast Transient Response
Low Output Ripple and Allows Ceramic Output Capacitor
Wide VIN Input Voltage Range: 4.5 V to 18 V
Output Voltage Range: 0.76 V to 5.5 V
Highly Efficient Integrated FET’s Optimized
for Lower Duty Cycle Applications
– 65 mΩ (High Side) and 55 mΩ (Low Side)
High Efficiency, less than 10 µA at shutdown
High Initial Bandgap Reference Accuracy
Adjustable Soft Start
Pre-Biased Soft Start
700-kHz Switching Frequency (fSW)
Cycle By Cycle Over Current Limit
Power Good Output
Auto-Skip Eco-mode for High Efficiency at Light Load
APPLICATIONS
Wide Range of Applications for Low Voltage System
Digital TV Power Supply
High Definition Blu-ray Disc Players
Networking Home Terminal
Digital Set Top Box (STB)
参数规格：
产品种类: 开关稳压器
制造商: Texas Instruments
RoHS: 符合RoHS 详细信息
安装风格: SMD/SMT
封装 / 箱体: HTSSOP-14
输出电压: - 0.1 V to 5.7 V
输出电流: 4 A
输出端数量: 1 Output
最大输入电压: 18 V
拓扑结构: Buck
最小输入电压: 4.5 V
开关频率: 700 kHz
最小工作温度: - 40 C
最大工作温度: + 85 C
系列: TPS54426
封装: Reel
商标: Texas Instruments
开发套件: TPS54426EVM-608
输入电压: 4.5 V to 18 V
负载调节: 100 mV
工作电源电流: 850 uA
工作温度范围: - 40 C to + 85 C
产品: Voltage Regulators
工厂包装数量: 2000
类型: Switching Regulator
单位重量: 58 mg
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