F Fe ea at tu ur re es s
Fixed 5V Output
VIN Range: 2.8V ～ 5.0V
Output Current: up to 100mA（V IN ≥2.8V）
up to 250mA（V IN ≥3.6V）
Constant Frequency Operation at All Loads
Low Noise Constant Frequency (400kHz)
Operation
Automatic Soft-Start Reduces Inrush
Current
Shutdown Current <1μA
Short-Circuit Protection
No Inductors
Available in Low Profile 6-Lead SOT23
Package
A Ap pp pl li ic ca at ti io on ns s
White LED Backlighting
Li-Ion Battery Backup Supplies
Local 3V to 5V Conversion
Smart Card Readers
D De es sc cr ri ip pt ti io on n
The SC1414 is a low noise, constant frequency
(400kHz) switched capacitor voltage doubler. It
produces a regulated output voltage from a
2.8V to 5.0V input. Low external parts count
(one flying capacitor and two small bypass
capacitors at VIN and VOUT) make the SC1414
ideally suited for small, battery-powered
applications.
The SC1414 have thermal shutdown capability
and can survive a continuous short circuit from
VOUT to GND. Built-in soft-start circuitry
prevents excessive inrush current during
start-up.
High switching frequency enables the use of
small ceramic capacitors. A low current
shutdown feature disconnects the load from VIN
and reduces quiescent current to <1uA.
The SC1414 is available in the SOT-23-6L
power packages.
PCMCIA Local 5V Supplies
