Low noise and low ripple step-down module

Texas Instruments TPSM82913 Synchronous step-down Converter module is a low noise, low ripple step-down module with integrated ferrite bead filter compensation. The module is a fixed frequency current mode converter module with filtering internal reference, which can achieve low noise output similar to low noise LDO.

TPSM82913 module adopts 2.2MHz or 1MHz switching frequency to realize low output voltage ripple, and integrates the μ2.2h inductor. The converter module is used in telecommunications infrastructure, test and measurement, aerospace and defense (radar and avionics), and medical applications.

Features

● Low output noise: < 20μVRMS (100Hz to 100kHz frequency range)
● Low output voltage ripple: < 10μVRMS (after ferrite bead)
● High PSRR: > 65dB (up to 100kHz)
● 2.2MHz or 1MHz fixed frequency peak current mode control
● (Optional) Synchronizing time with an external clock
● Integrated loop compensation supports second stage L-C filter with ferrite beads with 30dB attenuation (optional)
● Spread spectrum modulation (optional)
● Input voltage range: 3.0V to 17V
● Output voltage range: 0.8V to 5.5V
● RDS (on) = 20 m Ω
● Output voltage accuracy: ±1%
● Precision enable input support:
-   User defined undervoltage lock
-   Exact sort
● Adjustable soft start
● Good power output
● Output discharge (optional) :
-   Junction temperature range: -- 40°C to 125°C
-   - ET Version: - 55°C to 125°C
● Create custom designs with TPSM8291x and WEBENCH® Power Designer

Applications

● Telecommunication infrastructure
● Test and measurement
● Aerospace and Defense (Radar and Avionics)
● Medical treatment