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LM3310
www.ti.com SNVS341E – AUGUST 2005 – REVISED MAY 2013 LM3310 Step-Up PWM DC/DC Converter with Integrated Op-Amp and Gate Pulse
Modulation Switch
Check for Samples: LM3310 FEATURES DESCRIPTION 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. 1 2 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 …
