AT5503：降压转换器
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AT5503 | AT5503.pdf | - | Buck | 92 | - | 500 | 4.5 | 18 | 3 | ADJ | 1 |
Description
The AT5503 is a 500kHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 3A load with highefficiency, excellent line and load regulation. The AT5503 exhibits high efficiency at light load. The device integrates N-channel power MOSFET switch with low on-resistance. Current mode control provides fast transient response and cycle-by-cycle current limit. The AT5503 employs complete protection to ensure system security, including output Over Voltage Protection, input Under Voltage Lock Out, programmable soft-start, Over Temperature Protection and hiccup mode Short Circuit Protection.
Application
- Monitor
- TV
- STB
- Datacom
SO-8
- AT5503.pdf AT5503
