降压稳压器
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ETA(钰泰半导体)
降压稳压器
ETA3457
The ETA-M-3457FSM is a high-density power module for space sensitive applications.It is a very compact solution to offer 2.5A of continuous output current. The module operates from an input voltage range of 2.5V to 5.5V and provides output voltages from 0.6V to VIN, making the ETA-M-3457FSM ideal for low voltage power conversions. ETA-M-3457FSM adopts an adaptive COT control scheme that enables a very fast transient response and provides a very smooth transition when the output varies from light load to heavy load. During light load, ETA-M-3457FSM goes into a PFM mode that saves switching loss, achieving high efficiency. The adaptive COT control also maintains a constant switching frequency across line and load.
The ETA-M-3457FSM offers standard features: internal soft-start control circuitry reduces inrush current. Shortcircuit and thermal-overload protection improves design reliability.
The ETA-M-3457FSM integrates an inductor, power switches and a switching controller, running at a fixed frequency of 2MHz allows the use of small capacitors, thereby this compact solution is ideal for space sensitive systems.
ETA-M-3457FSM is available in a QFN-12 package.
FEATURES
Integrated Controller, Switches, Inductor
Up to 2.5A Max Output Current
Adaptive COT Control
Ultra-fast Load Transient Response
Low Radiated Emissions(EMI) Complies with EN55022 Class B standard
2MHz Frequency
High Efficiency PFM Mode at Light Load
50uA Quiescent Current
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
Only 4 External Components Needed: 2 Ceramic Capacitors and FB Divider Resistors
Available in QFN-12 Package
APPLICATIONS
Portable Products
Space-Limited Applications
Storage (SSD/HDD)
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