EC3292B Datasheet, PDF (1/14 Pages) E-CMOS Corporation – 18V/2A High Efficiency Synchronous Rectified Step-Down DC/DC Converter

18V/2A High Efficiency Synchronous Rectified
Step-Down DC/DC Converter
EC3292B
General Description
Features
The EC3292B is a high efficiency synchronous step-down
DC/DC converter series with 2A continuous output current
supplied. Included on the substrate with the features listed
is a high performance trans-conductance error amplifier
that provides tight voltage regulation and accuracy under
transient conditions. A built-in Under Voltage Lockout
(UVLO) circuit is provided to prevent start-up until the input
voltage reaches to 4.5V. In addition, it features over-
current protection and thermal shutdown. To improve the
light load efficiency, it is designed as the power saving
mode (PSM) to minimize the switching loss by reducing
the switching frequency. The EC3292B is available in
SOT23-6L package.
Application
◆ Input Voltage Supply Range from 4.5V to 18V
◆ Power Saving Mode (PSM) during the light Load
Operation
◆ High Efficiency up to 95%
◆ Adjustable Output Voltage from 0.6V to 12V
◆ 2A Continuous Output Current
◆ 500KHz Constant Frequency Operation
◆ Current Mode Operation
◆ Programmable Soft-Start
◆ Over-temperature Protection
◆ Over-current Protection
◆ Input Under Voltage Lockout (UVLO)
◆ 10µA Shutdown Current
◆ SOT23-6L Package
◆ RoHS Compliant (100% Green Available)
◆ Data comm. DSL CPE Graphics Cards
◆ Set-Top-Box, DVD
◆ Servers/Networking
◆ DSP and FPGA Power Supply
◆ Telecomm Equipments
◆ DC-DC Regulator Modules
◆ LCD Monitor and LCD TV
EC3292B
Figure 1. EC3292B Typical Operating Circuit
E-CMOS Corp. (www.ecmos.com.tw)
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5B04N-Rev.F001