SC46166 Datasheet, PDF (1/10 Pages) Silan Microelectronics Joint-stock – 300mA ,500KHZ HIGH EFFICIENCY STEP-UP DC/DC CONVERTER

SC46166
300mA ,500KHZ HIGH EFFICIENCY STEP-UP DC/DC CONVERTER
DESCRIPTION
The SC46166 is a compact, high efficiency, and low voltage
step-up DC/DC converter, includes an error amplifier, ramp
generator, current comparator, slope compensation, current sense
and driver. Peak current mode PWM control with internal
compensation reduces external parts count and provides a stable
and high efficient operation over a wide range of load currents.
The low start-up input voltage below 0.85V makes SC46166
suitable for 1 to 4 battery cells applications. A high switching
frequency of 500kHz minimizes overall solution footprint by allowing
the use of tiny, low profile inductors and ceramic capacitors. The
SC46166 shifts automatically to Power Saving Mode operation at
light loads, the 20uA low quiescent current together with high
efficiency maintains long battery lifetime. The device also features
low shutdown current of under 1μA.
SOT-23-6
SOT-89-5
FEATURES
APPLICATIONS
* 0.85V Low Start-up Input Voltage
* High Supply Capability to Deliver 3.3V 100mA with 1 Alkaline
Cell
* Automatic Power Saving Mode Operation with 20μA Quiescent
Supply Current
* Up to 90% Efficiency
* Output Range: 2.5V to 6V
* Shutdown Mode Supply Current : <1uA
* 500kHz Fixed Switching Frequency
* Over Temperature Protection
* 4KV HBM ESD
* Small SOT-23-6 & SOT-89-5 Package
* MP3 Players
* Digital Cameras
* PDA
* LCD Bias Supplies
* Portable Instrument
* Wireless Equipment
ORDERING INFORMATION
Device
SC46166
SC46166S
Package
SOT-23-6
SOT-89-5
Seal
46166
46166S
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.2
2008.07.04
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