The RT2857B is a high efficiency, monolithic synchronous step-down DC-DC converter that can deliver up to 6A output current from a 4.5V to 18V input supply. The RT2857B current-mode architecture with external compensation allows the transient response to be optimized over a wide range of loads and output capacitors. Cycle-by-cycle current limit provides prot.
Low RDS(ON) Power MOSFET Switches 26mΩ/19mΩ
Input Voltage Range : 4.5V to 18V
Adjustable Switching Frequency : 200kHz to 1.6MHz
Current-Mode Control
Synchronous to External Clock : 200kHz to 1.6MHz
Accurate Voltage Reference 0.6V ± 1%, Over −40°C to 85°C 0.6V ± 1.5%, Over −40°C to 150°C
Monotonic Start-Up into Pre-biased Outputs
Adjustable Soft-Start
Power Good Indicator
Over-Current Protection
Over-Temperature and Over-Voltage Protection
Input Under-Voltage Lockout
RoHS Compliant and Halogen Free
Applications
High Performance Point of Load Regulation
Noteb.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | RT2852BH |
Richtek |
Synchronous Step-Down Converter | |
2 | RT2853A |
Richtek |
Synchronous Step-Down Converter | |
3 | RT2853B |
Richtek |
Synchronous Step-Down Converter | |
4 | RT2855A |
Richtek |
Synchronous Step-Down Converter | |
5 | RT2855B |
Richtek |
Synchronous Step-Down Converter | |
6 | RT2856 |
Richtek |
Synchronous Step-Down Converter | |
7 | RT2856H |
Richtek |
Synchronous Step-Down Converter | |
8 | RT2859A |
Richtek |
Synchronous Step-Down Converter | |
9 | RT2859B |
Richtek |
Synchronous Step-Down Converter | |
10 | RT2800 |
Mimo |
MIMO Wireless Chipset | |
11 | RT2805A |
Richtek |
500kHz Current Mode Asynchronous Step-Down Converter | |
12 | RT2808A |
Richtek |
500kHz Current Mode Asynchronous Step-Down Converter |