1.6A, 500KHz Synchronous
Step-up Converter
DESCRIPTION
The EUP2410 is a highly efficient, synchronous, fixed
frequency, current-mode step-up converter with output to
input disconnect. When EUP2410 is disabled, the internal
conduction path from SW to OUT is fully blocked and the
OUT pin is isolated from the battery. This output disconnect
feature reduces the shutdown current to typically only 50nA.
The 500KHz switching frequency allows for smaller external
components producing a compact solution for a wide range
of load currents. Highly integration and internal
compensation network minimizes as 5 external components,
N-Channel switch and P-Channel Synchronous switch
integration will greatly improve converter efficiency.
Internal soft-start function also reduce inrush current. The
EUP2410 regulates the output voltage up to 6V from either a
2-cell NiMH/NiCd or a single-cell Li-Ion battery.
The EUP2410 is offered in a thin SOT23-5 package.
EUP2410
FEATURES
Over 90% Efficiency
1.6A Typical Switch Current Limit
500KHz Fixed Switching Frequency
Output to Input Disconnect at Shutdown Mode
Internal Synchronous Rectifier
Internal Soft-Start
Internal Compensation
50nA Shutdown Current
Thermal Shutdown
5-Pin TSOT-23 Package
RoHS compliant and 100% lead(Pb)-free
APPLICATIONS
GPS PND
Handheld Digital Audio
Digital Still and Video Cameras
White LED Flash
Typical Application Circuit
Figure1.
DS2410
Ver 1.0
Apr. 2009
1
EUTECH [ EUTECH MICROELECTRONICS INC ]
