TDA21570AUMA1

TDA21570AUMA1 is a high frequency, low-profile DC-DC converter. It is an integrated power stage, that contains a low quiescent current synchronous buck gate-driver IC which is co-packed with control and synchronous MOSFETs along with an active diode structure that achieves low Vsd similar to a Schottky with very little reverse recovery charge. The package is optimized for PCB layout, heat transfer, driver/MOSFET control timing, and minimal switch node ringing when layout guidelines are followed. The paired gate driver and MOSFET combination enable higher efficiency at lower output voltages required by cutting-edge CPU, GPU and DDR memory designs. The internal MOSFET sensing achieves superior current sense accuracy vs. best-in-class controller-based Inductor DCR sense methods.

• Integrated driver, active diode, control MOSFET Q1 and synchronous MOSFET Q2
• On-chip MOSFET current sensing and reporting at 5µA/A, DEEP SLEEP mode for power saving via EN= low
• Input voltage (VIN) range from 4.25V to 16V, VCC and VDRV supply range from 4.25V to 5.5V
• Output voltage range from 0.225V up to 5.5V at VIN=12V, output current capability of 70A
• Enhanced fault reporting and identification, VDRV under voltage lockout (UVLO)
• Bootstrap under-voltage protection, 8mV/°C temperature analogue output
• Over temperature protection and thermal shutdown, cycle-by-cycle over current Protection and flag
• Control MOSFET short (HSS) detection and flag, auto-replenishment on bootstrap capacitor
• Compatible with 3.3V tri-state PWM Input, Body-Braking™ load transient support
• PQFN package, temperature range from -40 to 125°C