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The RTQ2103A is a full featured 6V, 2A, Advanced Constant-On-Time (ACOT) synchronous step-down converter with two integrated MOSFETs. The advanced COT operation allows transient responses to be optimized over a wide range of loads, and output capacitors to efficiently reduce external component count. The RTQ2103A provides up to 2.7MHz switching frequency to minimize the size of output inductor and capacitors. The RTQ2103A is available in the SOP-8 (Exposed Pad) package.

Applications

  • Mobile Phones and Handheld Devices
  • STB, Cable Modem, and xDSL Platforms
  • WLAN ASIC Power / Storage (SSD and HDD)
  • General Purpose for POL LV Buck Converter
  • Automotive Infotainment
  • Automotive Instrument Clusters & HUD
  • Car Connectivity
Key Spec.
RTQ2103A-QA
Status Active
Vin (min) (V) 3
Vin (max) (V) 6
Number of Outputs 1
Vout (min) (V) 0.45
Vout (max) (V) 3.3
Output Adj. Method Resistor
Iout (max) (A) 2
Current Limit (typ) (A) 3.2
Freq (typ) (kHz) 2700
Ext Sync No
Ron_HS (typ) (mOhm) 130
Ron_LS (typ) (mOhm) 105
Iq (typ) (mA) 0.03
Features 100% Duty Cycle;ACOT Control;AEC-Q100;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;Internal Compensation;OCP;OTP;PSM;Power Good;Stable with Ceramic Capacitor;UVP
Package Type PSOP-8
Features
  • AEC-Q100 Grade 1 Qualified
  • 3V to 6V Input Voltage Range
  • Advanced COT Control Loop Design
  • Fast Transient Response
  • Internal 130mΩ and 105mΩ Synchronous Rectifier
  • Highly Accurate VOUT Regulation Over Load/Line Range
  • Robust Loop Stability with Low-ESR COUT
  • Automotive Temperature Range -40°C to 125°C
Reference Design
TitleLast UpdateDownload
Richtek Load Transient Tool2022/07/25
Part NumberPackage TypePackage Qty.Free SampleDistributorStockBuy From Authorized Distributor
RTQ2103AGSP-QAPSOP-82,500 Request Digikey 4,426 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
Evaluation Board
Part NumberDistributorStockBuy From Authorized Distributor
EVB_RTQ2103AGSP-QA Digikey 5 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
Please confirm with our distributor or sales representative for actual stock status.
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