降压稳压器
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ETA(钰泰半导体)
降压稳压器
ETA3448
The ETA3448 is a high-efficiency, DC-to-DC step-down switching regulator, capable of delivering up to 3A of output current. The devices operate from an input voltage range of 2.5V to 5.5V and provide output voltages from 0.6V to VIN, making the ETA3448 ideal for low voltage power conversions. ETA3448 adopts an Adaptive COT control scheme that enables very fast transient response and provides a very smooth transition when the output varies from light load to heavy load.
The adaptive COT control also maintains a constant switching frequency across line and load. Running at a fixed frequency of 2MHz allows the use of small inductance value and low DCR inductors, thereby achieving higher efficiencies. Other external components, such as ceramic input and output caps, can also be small due to higher switching frequency, while maintaining exceptional low noise output voltages. lnternal soft-start control circuitry reduces inrush current. Short-circuit and thermal-overload protection improves design reliability
ETA3448 is available in a tiny SOT23-5L package
FEATURES
Up to 93% Efficiency
Up to 3A Max Output Current
Adaptive COT Control
Ultra-fast load transient response
Forced PWM Mode
100% Duty Cycle Operation
1% Feedback Accuracy
Adjustable Output from 0.6V
Cycle-by-cycle Over Current Protection
Short Circuit Protection with Hiccup Mode
Stable with LOW-ESR Output Ceramic Capacitors
Available in SOT23-5L Package
APPLICATIONS
LCD TV
Set Top Box
IP CAM
需要样品测试或详细资料请联系：18126521362（点击复制微信号）
