EC9211 – High Efficiency 1.5MHz, Step up Regulator

General description

The EC9211 is a fixed switching frequency (1.5MHz typical), current-mode, step-upregulator with an integrated N-channel MOSFET. The device allows the usage of small inductors and output capacitors for portable devices. The current-mode control scheme provides fast transient response and good output voltage accuracy. The EC9211 includes under-voltage lockout, current limit, and over-temperature shutdown preventing damage in the event of an output overload.

Features

● Wide 2.7V to 6V Input Voltage Range
● Built ‐ in 0.2Ω  N ‐ Channel MOSFET
● Built ‐ in Soft ‐ Start
● High Efficiency up to 90%
● <1mA Quiescent Current During Shutdown ● Current ‐ Mode Operation ● Stable with Ceramic Output Capacitors ● Fast Transient Response ● Current ‐ Limit Protection ● Over ‐ Temperature Protection with Hysteresis ● Available in a SOT23 ‐ 6 Package ● Lead Free and Green Devices Available ● (RoHS Compliant)

Applications

●Cell Phone and Smart Phone
●PDA, PMP, MP3
●Digital Camera
●Boost Regulators

Pin Configurations

Ordering info

Typical Applications circuit

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