AP3433：Buck Converter
| Part Number | Data Sheet | SPICE Model | Type | Efficiency (%) | RDS(ON) (mΩ) | Frequency Typ (kHz) | MinimumInput Voltage (V) | MaximumInput Voltage (V) | Output Current (A) | Output Voltage (V) | Standby Quiescent Current Typ (µA) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AP3433 | AP3433.pdf | - | Buck | 94 | - | 300 | 2.95 | 5.5 | 3 | 0.827 to 0.9xVIN | 5 |
Description
The AP3433 is a current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 3A load with high efficiency, excellent line and load regulation. The device integrates two N-channel power MOSFETs with low on-resistance. Current mode control provides fast transient response and cycle-by-cycle current limit. The switching frequency of AP3433 can be programmable from 300kHz to 2MHz, which allows small-sized components, 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. Under voltage lockout is internally set at 2.6V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is control°C by the soft-start pin. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage.
Application
- Low-voltage, High-density Power Systems
- Point of Load Regulation for Consumer Applications such as Set Top Boxes, LCD Displays, CPE Equipment
Ordering Information
- AP3433FNTR-G1
U-QFN3030-16
- AP3433.pdf AP3433
