High Efficiency 1MHz, Step up Regulator

EC4513

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3G16N-Rev.P001

General Description

The EC4513 is the high power and high efficiency boost

converter with an integrated 30V FET ideal for LCD panel backlighting

applications. 30V output voltage allows for 8 high

‐power LEDs in series,

and 3.5A inductor current limit allows for more LED strings connected in

parallel. The low 0.5V feedback voltage offers higher efficiency

in WLED driver applications. The wide input range from 2.7V to 21V

made EC4513 a perfect solution for various applications such as

LCD monitor and portable devices. The OVP pin monitors the

output voltage to protect IC during open load and FB pin short

circuit operations. The EC4513 provides the ALS pin to

simplify the interface to an ambient light sensor for automatic

dimming. The EC4513 is available in the thermally enhanced

DFN

‐10 lead 3mmx3mm package.

Features

●Wide Input Voltage Range from 2.7V to 21V

●High Current‐Limit up to 3.5A

●0.5V Reference Voltage with ±3% System Accuracy

●50mΩ Integrated N‐FET

●Fixed 1.2MHz Switching Frequency

●High Efficiency up to 95%

●Open‐LED Protection

●Under‐Voltage Lockout Protection

●ALS Control Input Pin

●Over‐Temperature Protection

●Low Shutdown Current: <1mA

●3mmx3mm DFN‐10 Package

●Lead Free and Green Devices Available

Applications

●Display Backlighting

●Automotive

●LCD Monitors

●Notebook Displays

●Portable Displays

Pin Assignments