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reference designRTQ2105 | Demoboard RTQ2105GQWT-QA

Richtek RTQ2105 | Demoboard RTQ2105GQWT-QA

36VIN, 3A, High Efficiency Synchronous Step-Down Converter

Overview

TopologyOther Topology
Input voltage3-36 V
Switching frequency300-2200 kHz
Output 136 V / 3 A
IC revision00

Description

The RTQ2105GQWT-QA evaluation board showcases the regulator’s performance, delivering 3A output from a 3V to 36V input at 2.1MHz. Suitable for industrial and communication systems, it offers protection against shorted outputs, input under voltage, overcurrent, and thermal shutdown. The documentation includes a BOM, typical application,board overview, power-up procedure, performance summary, and hardware description to provide information on the board’s components, capabilities, and usage.

Features

  • AEC-Q100 Grade 1 Qualified
  • Wide Input Voltage Range
  • 4V to 36V (steady-state operation after VOUT settle)
  • 3V to 36V (Soft-start is finished)
  • Maximum Output Current : 3A
  • Peak Current Mode Control
  • Integrated 70mΩ Switch and 70mΩ Synchronous Rectifier
  • Low Quiescent Current : 40μA
  • Fast 60ns Minimum Switch On-Time
  • Ultra-Short 65ns Minimum Switch Off-Time
  • Adjustable and Synchronizable Switching : 300kHz to 2.2MHz
  • Selectable PSM/FPWM at Light Load
  • Optional Spread-Spectrum Frequency Modulation for Low EMI
  • Externally Adjustable Soft-Start
  • Power Good Indication
  • Enable Control
  • Adjustable Output Voltage with Cable Drop Compensation for VOUT = 5V applications
  • Constant Current (CC) and Constant Voltage (CV) Regulation
  • 0.8V ± 1.5% CV Reference Accuracy
  • Adjustable Current Limit
  • Adjacent Pin-Short Protection
  • Built-In UVLO, UVP, OTP

Typical applications

  • Industrial
  • Communication& Enterprie
  • Automotive& e-Mobility
  • consumer electronics

More information

Parts approved by Richtek

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Order Code
Data­sheet
Downloads
Status
Product series
L(µH)
Tol. L
IRP,40K(A)
IR,40K(A)
ISAT,30%(A)
fres(MHz)
ISAT,10%(A)
Mount
RDC typ.(mΩ)
Material
SamplesAvailability & Sample
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78439344022
SPECWE-XHMA SMD Power Inductor, 2.2 µH, ±20%

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-XHMA SMD Power Inductor
Inductance2.2 µH
Inductance±20% 
Performance Rated Current10.85 A
Rated Current8 A
Saturation Current @ 30%16.25 A
Self Resonant Frequency37 MHz
Saturation Current @ 10%7.5 A
MountSMT 
DC Resistance10.5 mΩ
MaterialHyperflux 
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