25-11-2021 | Subsystems and systems
24-11-2021 | Connectors, switches and EMECH
25-11-2021 | Subsystems and systems
15-11-2021 | Connectors, switches and EMECH
19-11-2021 | Connectors, switches and EMECH
21-10-2021 | Test and Measurement
28-10-2021 | Test and Measurement
27-09-2021 | Test and Measurement
24-09-2021 | Test and Measurement
23-09-2021 | Subsystems and systems
16-02-2021 | Texas Instruments | Power
Texas Instruments TPS6291x devices are a series of high-efficiency, low-noise and low-ripple synchronous buck converters. These devices are well suited for noise-sensitive applications that typically use LDOs for post-conditioning, such as high-speed ADCs, clock and jitter cleaners, serializers, deserializers, and radar applications.
The device operates at a fixed switching frequency of 2.2MHz or 1MHz and can be synchronized with an external clock.
To further reduce output voltage ripple, the device incorporates loop compensation to operate with an optional second-stage ferrite bead LC filter. This provides an output voltage ripple below 10µVRMS.
The low-frequency noise level is similar to that of a low-noise LDO and is achieved by filtering the internal voltage reference using a capacitor connected to the NR/SS pin.
The optional spread spectrum modulation scheme extends the DC-DC switching frequency to a wider span, thereby reducing mixing spurs.