Datasheet
General Description
AP2972A is simple, easy to use, 2A synchronous step-down (Buck) convertor in SOT-23-6L package, with high efficiency and fast transient response. AP2972A operates over a wide input voltage range from 4.5V to 16V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. AP2972A adopts the active constant on time PWM architecture to achieve fast transient responses for high step down applications and high efficiency at light loads. In addition,it keeps in constant frequency of 500kHz under heavy load conditions to minimize the size of inductor and capacitor.Fault conditions also include cycle-by-cycle current limit,output under voltage protection, output over current protection, output short-circuit protection and thermal shutdown
Features
Integrated 130-mΩ and 120-mΩ FETs
4.5-16V input voltage range
2A load current capability
Active constant on time PWM architecture with 500kHz switching frequency
Internal soft-start limits the inrush current
2% 0.6V reference
Compact package: SOT-23-6L
Applications
Set Top Box
Portable TV
Access Point Router
Package/Order Information
Typical Circuit
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| Warranty |
1 Year |
| Lead time |
3-7 Days |
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