| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
1,511 pcs
|
1511 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
1,433 pcs
|
1433 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Clock Sync | |
| Control Features | |
| Duty Cycle (Max) | |
| Frequency | |
| Function | |
| Mounting Type | |
| Number of Outputs | |
| Operating Temperature | |
| Output Configuration | |
| Output Phases | |
| Output Type | |
| Supplier Device Package | |
| Synchronous Rectifier | |
| Tape & Reel | |
| Topology | |
| Voltage |
The LTC7821IUH#TRPBF from Analog Devices is a hybrid step-down synchronous controller designed for high efficiency and low noise operation. It features a proprietary architecture that merges a soft switching charge pump topology with a synchronous step-down converter.
This controller supports a wide input voltage range from 10V to 72V, with an absolute maximum of 80V. The operating frequency is phase-lockable and can be set anywhere from 200kHz to 1.5MHz. Key electrical features include ±1% output voltage accuracy, RSENSE or DCR current sensing, and programmable operation modes such as CCM, DCM, or Burst Mode®.
The device is housed in a 32-pin QFN package (5mm x 5mm) with an exposed pad, suitable for surface mounting. It offers control features like current limit, enable, frequency control, power good, soft start, and tracking. The LTC7821IUH#TRPBF is designed for applications such as intermediate bus converters, high current distributed power systems, and telecom, datacom, and storage systems.
Additional features include soft switching for low noise, CLKOUT pin for multiphase operation, short circuit protection, and an EXTVCC input for improved efficiency. It also supports monotonic output voltage start-up and has an optional external reference.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.78 | $0.78 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 10V to 72V, with an absolute maximum rating of 80V.
The LTC7821IUH#TRPBF is available in a 32-QFN (5x5mm) or 32-WFQFN exposed pad package, both surface mount.
The operating junction temperature range is -40°C to 125°C.
The switching frequency is programmable from 200kHz to 1.5MHz and is phase-lockable.
Yes, it features soft switching for low noise operation.
The controller supports programmable continuous conduction mode (CCM), discontinuous conduction mode (DCM), or Burst Mode operation.
Current sensing can be done using either an RSENSE resistor or DCR of the inductor.