SP4446

High Output Voltage: Up to 30V
High Efficiency
Low Quiescent Current: ~20uA
Miniature Package: (5-lead SOT-23)
Single Battery Cell Operation
Programmable Output Voltage
1Ω Switch (150mV at 150mA)

LCD Bias
Tuner Pin Voltage
White LED Driver
High Voltage Bias
Digital Cameras
Cell Phone
Battery Backup
Handheld Computers

V_IN ....................................................................... 15V
SW Voltage .............................................. -0.4 to 34V
FB Voltage .......................................................... 2.5V
All other pins ................................ -0.3 to VCC + 0.3V
Current into FB ................................................. ±1mA
T_J Max .............................................................. 125°C
Operating Temperature Range ............ -40°C to 85°C
Peak Output Current < 10us SW .................... 500mA
Storage Temperature ...................... -65°C to +150°C
Power Dissipation. ......................................... 200mW
Lead Temperature (Soldering, 10 sec) ............ 300°C
ESD Rating ................................................... 2kV HBM

The SP4446 is a micro power Boost Regualtor in a 5-lead SOT-23 package. It is a current limited, fixed off time regulator configured for use in boost mode applications. The operating voltage can be less than 3V and is capable of generating voltages as high as 30 Volts. The SP4446 is to be supplied in a SOT-23-5 and permits the construction of complete regulators that occupy < 0.2 square inches of board space.