Products
Power Management
Semtech SC284A
Dual Channel 2.5MHz, 2.0A Synchronous Buck Regulator
The SC284A 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 o$ ers seven pre-determined output voltages via three control pins programmable from 1.0 to 3.3 Volts. The control pins allow for on-the-& y voltage changes, enabling system designers to implement dynamic power savings. The SC284A is also capable of adjusting the output voltage via an external resistor divider.
Overview
Features
- 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%
- 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
Applications
- Wireless Access Point/Router/Modem
- Femtocell
- Set-Top Box
- Point-Of-Sale
- Projector
Packaging
- 3 x 3 x 0.6(mm) MLPQ-UT20
Order Codes
- SC284AULTRC
- SC284AEVB