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电源管理
Semtech SC284P
Dual Channel 2.5MHz, 2.0A Synchronous Buck with Automatic Power Save
The SC284P is a dual channel 2A synchronous step-down regulator designed to operate with an input voltage range of 2.75 to 5.5 Volts. Each channel offers seven pre-determined output voltages via three control pins programmable from 1.0 to 3.3 Volts. The control pins allow for on-the-fly voltage changes, enabling system designers to implement dynamic power savings. The SC284P is also capable of adjusting the output voltage via an external resistor divider.
概览
功能
- VIN Range — 2.75 – 5.5V
- VOUT Selectable — 1.0 - 3.3V
- Up to 2A Output Current for Each Channel
- Package with Ultra-Small Footprint : 3 x 3 x 0.6(mm)
- Switching Frequency — 2.5MHz
- Efficiency Up to 94%
- High Light-load Efficiency via Automatic PSAVE Mode
- Low Output Noise in CCM
- Excellent Transient Response
- Start Up into Pre-Biased Output
- 100% Duty-Cycle Low Dropout Operation
- Shutdown Current — <1μA
- Internal Soft-Start
- Input Under-Voltage Lockout
- Output Over-Voltage, Current Limit Protection
- Over-Temperature Protection
- VOUT Further Adjustable Using External Resistors
- PGOOD Feature
- Lead-free, Halogen-free, and RoHS/WEEE Compliant
应用
- Wireless Access Point/Router/Modem
- Femtocell
- Set-Top Box
- Point-Of-Sale
- Projector
封装
- MLPQ-UT20
订购代码
- SC284PULTRC: Lead Free, WEEE and RoHS Compliant, Halogen-free, 3,000 pcs, Tape and Reel only.
- SC284PEVB: Evaluation Board