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GENERAL DESCRTPTION
The PW5200A/ PW5200C is high efficiency synchronous, PWM step-up DC/DC converters optimized to provide a high efficient solution to medium power systems. The devices work with a 1.4MHz fixed frequency switching. These features minimize overall solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. Automatic PWM/PFM mode switching at light load saves power and improves efficiency.
The PW5200A/ PW5200C is capable of supplying an output voltage between 2.5V and 5V, the internal synchronous switch is desired to provide high efficiency without Schottky.
FEATURES?
l Up to 94% Efficiency
l Shut-down Current: <1μA
l Load Current: up to 500mA
l Input Voltage：PW5200A: 1V to 4.4V，PW5200C: 2V to 4.4V
l Output Voltage: 2.5V to 5V (up to 5V with Schottky)
l Low Switch On Resistance RDS(ON), Internal Switch: 0.35?
l 1.4MHz Fixed Frequency Switching
l Automatic PWM/PFM Mode Switching
l Low Profile SOT-23-6L Package
APPLICATIONS
l Digital cameras and MP3
l Palmtop computers / PDAs
l Cellular phones
l Wireless handsets and DSL modems
l PC cards
l Portable media players
