Datasheet for RH1959:
- Manufacturer Part Number : RH1959
- Manufacturer : AD
- Description : Radiation Hardened 4.5A, 500kHz Step-Down Switching Regulator
- Series : RH1959
- Reference Price : USD 0
- Our Price : We have a better price, contact us by email
- Product Type : Switching Regulators
- Function : Step-Down (Buck) Regulators
- Current Suggest : Production
- Status : Contact ADI
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : RH1959
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
Contact us to check the best price and real time inventory quantity for RH1959. If you need any more information about RH1959, you can also send us by email. Our email is [email protected], we will reply you in 12 hours.
The RH1959 is a 500kHz monolithic buck mode switching regulator with a 4.5A integrated switch that will operate down to 1.21V. High switching frequency allows a considerable reduction in the size of external components. The topology is current mode for fast transient response and good loop stability.
A special high speed bipolar process and new design techniques achieve high efficiency at high switching frequency. Efficiency is maintained over a wide output current range by keeping quiescent supply current near 3.3mA and by utilizing a supply boost capacitor to saturate the power switch.
Full cycle-by-cycle short-circuit protection and thermal shutdown are provided. Standard surface mount external parts are used, including the inductor and capacitors. Optional shutdown and synchronization functions are available. Implementing shutdown reduces supply current to 30μA. Synchronization allows an external logic level signal to increase the internal oscillator from 580kHz to 1MHz.
Third Party Vendor Availability
Analog Devices partners with third party vendors who assemble and test packaged products with RH Dice inside.
| Part Number | Description |
| MSK5044RH | Switching Reg. Module,500kHz Fixed Frequency |
| MSK5048RH | Switching Reg. Module,500kHz With Ext Sync Opt |
| MSK5052RH | Switching Reg. Module,500kHz With Ext Sync Opt |
| MSK5059RH | Switching Reg. Monolithic (RH1959 IC Only) |
Applications
- POL Regulator Applications
- Satellite System Power Supply
- Microprocessor, FPGA Power Source
- High Efficiency Low Voltage Subsystem Power Supply
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.