Step-Up PWM DC/DC Converter with Integrated Op-Amp and Gate Pulse Modulation Switch


Product details


Vin (Min) (V) 2.5 Vin (Max) (V) 7 Vout (Min) (V) 1.263 Vout (Max) (V) 20 Switch current limit (Typ) (A) 2 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 660 Switching frequency (Max) (kHz) 1280 Iq (Typ) (mA) 2.1 Features Enable Duty cycle (Max) (%) 91 Operating temperature range (C) -40 to 125 Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

WQFN (RTW) 24 16 mm² 4 x 4 open-in-new Find other Boost converters (integrated switch)


  • Boost Converter with a 2A, 0.18Ω Switch
  • Boost Output Voltage Adjustable up to 20V
  • Operating Voltage Range of 2.5V to 7V
  • 660kHz/1.28MHz Pin Selectable Switching Frequency
  • Adjustable Soft-Start Function
  • Input Undervoltage Protection
  • Over Temperature Protection
  • Integrated Op-Amp
  • Integrated Gate Pulse Modulation (GPM) Switch
  • 24-Lead WQFN Package

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The LM3310 is a step-up DC/DC converter integrated with an Operational Amplifier and a gate pulse modulation switch. The boost (step-up) converter is used to generate an adjustable output voltage and features a low RDSON internal switch for maximum efficiency. The operating frequency is selectable between 660kHz and 1.28MHz allowing for the use of small external components. An external soft-start pin enables the user to tailor the soft-start time to a specific application and limit the inrush current. The Op-Amp is capable of sourcing/sinking 135mA of current (typical). The gate pulse modulation switch can operate with a VGH voltage of 5V to 30V. The LM3310 is available in a low profile 24-lead WQFN package.

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Technical documentation

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Type Title Date
* Data sheet LM3310 Step-Up PWM DC/DC Converter w/Integrated Op-Amp & Gate Pulse Mod Switch datasheet (Rev. E) May 02, 2013
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application note Design of UVLO for LM27313 (Rev. B) Apr. 08, 2014

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