1MHz Boost Regulator with 18V
Integrated FET Switch in Tiny SOT-23
The EUP2570 switching regulator is a current-mode
boost converter operating at fixed frequency of 1MHz.
It is designed for small LCD bias supply and others
micropower step-up applications. The 18V switch
allows for output voltage as high as 17V. The
integrated 0.19Ω power switch and 2A current limit
will provide high efficiency over a wide range of load
conditions with high power density.
The EUP2570 integrated multiple protections, such as
OC, UVLO, OT, OVP, which will prevent damage in
the event of an output overload.
The EUP2570 is available in the tiny SOT23-5
package to provide the best solution for PCB space
saving and total BOM cost.
2.6V to 5.5V Input Range
18V Output Over Voltage Protection
Adjustable Output Voltage
Internal 0.19Ω 18V MOSFET Switch
1MHz Switching Frequency
2A Current Limit
Low-Profile Inductors and Capacitors
Peak Efficiency Up to 88%
Available in TSOT23-5 Package
RoHS Compliant and 100% Lead (Pb)-Free
LCD Panel Bias Supplies
Local Boost Regulator
Typical Application Circuit
Figure 1. EUP2570 Typical 12V Application
DS2570 Ver1.0 Feb. 2012