Products
Power Management
Semtech SC189
2.5MHz, 1.5A Synchronous Step Down Switching Regulator in MLPD2X2
The SC189 is a high efficiency, synchronous step-down regulator providing up to 1.5A output current in either an ultra-small 2mm x 2mm, low profile package or a low cost SOT23-5 package.
Overview
Features
- VIN Range: 2.9-5.5V
- VOUT Options: 1.0 - 3.3V
- Up to 1.5A Output Current
- Ultra-Small Footprint, <1mm Height Solution
- 2.5MHz Switching Frequency
- Efficiency Up to 93%
- Low Output Noise Across Load Range
- Excellent Transient Response
- Start Up into Pre-Bias Output
- 100% Duty-Cycle Low Dropout Operation
- <1μA Shutdown Current
- Internal Soft Start
- Input Under-Voltage Lockout
- Output Over-Voltage, Current Limit Protection
- Over-Temperature Protection
- Available in SOT23-5 package and 2mm x 2mm x 0.6mm thermally enhanced MLPD-UT6 package
- -40 to +85°C Temperature Range
- Fully WEEE and RoHS Compliant
Applications
- Bluetooth Radios
- DSC and PMPs
- GPS Devices
- xDSL Systems
- POL Regulators
- Portable HDD
- Wireless LAN
Packaging
- MLPD-UT6
- SOT23-5
Order Codes
- SC189xULTRT: (MLPD-UT6 package), Lead-Free, WEEE and RoHS Compliant, 3,000 pcs, Tape and Reel Only
- SC189xSKTRT: (SOT23-5 package), Lead-Free, WEEE and RoHS Compliant, 3,000 pcs, Tape and Reel Only
- SC189xEVB: SC189x Evaluation Board for MLPD-UT6 - Standard Size
- SC189xEVB-1: SC189x Evaluation Board for MLPD-UT6 - Small Size
- SC189xEVB-2: SC189x Evaluation Board for SOT23-5 - Standard Size
- SC189xEVB-3: SC189x Evaluation Board for SOT23-5 - Small Size
Diagrams and Specs
Block Diagram
Click diagram to enlarge