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 2.9V to 6V, 3-A Step-Down Converter with Integrated MOSFETs


Package | PIN: RGT | 16
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $3.54
10-24 $3.19
25-99 $2.97
100-249 $2.60
250-499 $2.44
500-749 $2.07
750-999 $1.75
1000+ $1.67


  • >95% Maximum Efficiency
  • Continuous 3-A Output Current
  • Hiccup Overcurrent Protection
  • Supports All MLCC Output Capacitor
  • SmoothPWM Auto-Skip Eco-mode for Light-Load Efficiency
  • Voltage Mode Control
  • Supports Master-Slave Interleaved Operation
  • Synchronization up to ±20% of Nominal Frequency
  • Conversion Voltage Range Between 2.9 V and 6 V
  • Soft-Stop Output Discharge During Disable
  • Adjustable Output Voltage Ranging Between 0.6 V and 0.84 V × VIN
  • Undervoltage, Overvoltage and Overtemperature Protection
  • Small 3 mm × 3 mm, 16-Pin VQFN Package
  • Open-Drain Power Good Indication
  • Internal Boot Strap Switch
  • Low RDS(on), 24 mΩ with 3.3-V Input and 19-mΩ with 5-V Input
  • Supports Pre-bias Start Up

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Texas Instruments  TPS53310RGTT

The TPS53310 provides a fully integrated 3-V to 5-V VIN integrated synchronous FET converter solution with 16 total components, in 200 mm2 of PCB area. Due to the low RDS(on) and TI's proprietary SmoothPWM™ Skip mode of operation, it enables 95.5% peak efficiency, and over 90% efficiency at loads as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power dense 3-A solution.

The TPS53310 features a 1.1-MHz switching frequency, SKIP mode operation support, pre-bias startup, internal softstart, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage and overtemperature protections and all ceramic output capacitor support. It supports supply voltage from
2.9 V to 3.5 V and conversion voltage from 2.9 V to
6 V, and output voltage is adjustable from 0.6 V to
0.84 V × VIN.

The TPS53310 is available in the 3 mm × 3 mm,
16-pin VQFN package (Green RoHs compliant and Pb free) and operates between –40°C and 85°C.