0
ACTIVE
Rating |
Catalog |
Topology |
Buck |
Iout (max) (A) |
10 |
Vin (max) (V) |
14 |
Vin (min) (V) |
8 |
Vout (max) (V) |
2 |
Vout (min) (V) |
0.5 |
Features |
Adjustable current limit, Enable, Frequency synchronization, Phase Interleaving, Power good, Pre-Bias Start-Up, Synchronous Rectification, UVLO adjustable |
Control mode |
Constant on-time (COT) |
Operating temperature range (°C) |
-40 to 125 |
Iq (typ) (A) |
0.005 |
Duty cycle (max) (%) |
25 |
VQFN-HR (RNJ)-20-14 mm² 4 x 3.5
The TPS54A20 is a two-phase, synchronous series capacitor buck converter designed for small size, low voltage applications from a 12-V input rail. This topology uniquely merges a switched capacitor circuit with a two phase buck converter. Advantages include automatic current balancing between the inductors, lower switching losses which enable high frequency (HF) operation, and voltage step-down through the series capacitor. Small, low profile inductors used with the TPS54A20 significantly reduce total solution area and height. An adaptive on-time control architecture provides fast transient response and accurate voltage regulation at up to 10-MHz operating frequency. Fixed frequency operation during steady state is maintained through the use of a phase lock loop (PLL) to lock switching signals to a reference oscillator.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
