EC3276 Datasheet, PDF (1/12 Pages) E-CMOS Corporation – 2.2A/32V Synchronous Rectified Step-Down Converter

2.2A/32V Synchronous Rectified
Step-Down Converter
EC3276
General Description
Features
The EC3276 is a monolithic synchronous buck regulator. ^•
The device integrates two 90mΩ MOSFETs, and provides ^•
2.2A of continuous load current over a wide input voltage ^•
of 4.75V to 32V. Current mode
•
control provides fast transient
response
and ^•
cycle-by-cycle current limit.
•
An adjustable soft-start prevents inrush current at turn-on, ^•
and in shutdown mode the supply current drops to 1µA. ^•
This device, available in an SOP-8(Exposed PAD) ^•
package, provides a very compact solution with minimal ^•
2.2A Output Current
Wide 4.75V to 32V Operating Input Range
Integrated 90mΩ Power MOSFET Switches
Output Adjustable from 0.923V to 30V
Up to 93% Efficiency
Programmable Soft-Start
Stable with Low ESR Ceramic Output Capacitors
Fixed 600KHz Frequency
Cycle-by-Cycle Over Current Protection
Input Under Voltage Lockout
external components.
Applications
• Distributed Power Systems
• Networking Systems
• FPGA, DSP, ASIC Power Supplies
• Green Electronics/ Appliances
• Notebook Computers
Typical Application Circuit
Fig1. EC3276 with 5V Output, 470µF/16V Electrolytic Output Capacitor
E-CMOS Corp. (www.ecmos.com.tw)
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3G16N-Rev.P001