
Anpec Electronics
General Description
The APW7137 is a fixed switching frequency (1MHz typical), current-mode, step-up regulator with an integrated N-channel MOSFET. The device allows the usage of small inductors and output capacitors for portable devices. The current-mode control scheme provides fast transient response and good output voltage accuracy.
The APW7137 includes under-voltage lockout, current limit, and over-temperature shutdown preventing damage in the event of an output overload.
FEATUREs
· Wide 2.5V to 6V Input Voltage Range
· Built-in 0.6W N-Channel MOSFET
· Built-in Soft-Start
· High Efficiency up to 90%
· <1mA Quiescent Current During Shutdown
· Current-Mode Operation
- Stable with Ceramic Output Capacitors
- Fast Transient Response
· Current-Limit Protection
· Over-Temperature Protection with Hysteresis
· Available in a Tiny 5-Pin SOT-23 Package
· Lead Free and Green Devices Available (RoHS Compliant)
APPLICATIONs
· Cell Phone and Smart Phone
· PDA, PMP, MP3
· Digital Camera
· Boost Regulators