AP3408
AP3408 is 4MHz High Efficiency Synchronous Buck Converter manufactured by BCD Semiconductor.
Preliminary Datasheet
2A, 4MHz High Efficiency Synchronous Buck Converter
General Description
The AP3408 is a current mode, PWM synchronous buck DC/DC converter, capable of driving a 2A load with high efficiency, excellent line and load regulation. It operates in continuous PWM mode.
The AP3408 integrates synchronous P-channel and N-channel power MOSFET switches with low on-resistance. It is ideal for portable applications powered from a single Li-ion battery. 100% duty cycle and low on-resistance P-channel internal power MOSFET can maximize the battery life.
The switching frequency of AP3408 can be programmable from 300k Hz to 4MHz, which allows small-sized ponents, such as capacitors and inductors. A standard series of inductors from several different manufacturers are available. This feature greatly simplifies the design of switch-mode power supplies.
The AP3408 is available in DFN-3×3-10 and PSOP-8 packages.
Features
- Input Voltage Range: 2.6 to 5.5V
- Adjustable Output from 0.8 to 5V
- 0.8V Reference Voltage with ± 2% Precision
- Output Current: 2A
- High Efficiency up to 95%
- Low RDSON Internal Switches
- Programmable Frequency: 300k Hz to 4MHz
- Current Mode Control
- Forced Continuous-mode Operation
- 100% Duty Cycle
- Synchronizable Switching Frequency
- Power Good Output Voltage Monitoring
- Built-in Soft-start
- Built-in Short Circuit Protection
- Built-in Thermal Shutdown Protection
- Built-in Current Limit Function
Applications
- Portable Media Player
- Digital Still and Video Cameras
- Notebook
DFN-3×3-10
PSOP-8...
