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LM3310

Features: `Boost converter with a 2A, 0.18 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 ...

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SeekIC No. : 004395255 Detail

LM3310: Features: `Boost converter with a 2A, 0.18 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-st...

LM3310 Data Sheet

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Part Number:
LM3310
Supply Ability:
5000

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Product Details

Description



Features:

`Boost converter with a 2A, 0.18 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 LLP package




Application

·TFT Bias Supplies
·Portable Applications




Pinout

Connection Diagram




Specifications

VIN ................................................ ....................7.5V
SW Voltage......................................................... 21V
FB Voltage........................................................... VIN
VC Voltage (Note 2)........................... 1.265V ± 0.3V
SHDN Voltage .....................................................7.5V
FREQ.................................................................... VIN
AVIN.................................................................... 12V
Amplifier Inputs/Output ............................Rail-to-Rail
VGH Voltage ........................................................31V
VGHM Voltage .....................................................VGH
VFLK, VDPM, VDD Voltage................................... 7.5V
CE Voltage (Note 2) ..............................1.265 + 0.3V
RE Voltage ..........................................................VGH
Maximum Junction
Temperature......................................................150
Power Dissipation(Note 3) ............. Internally Limited
Lead Temperature ............................................ 300
Vapor Phase (60 sec.) .......................................215
Infrared (15 sec.) .............................................. 220
ESD Susceptibility (Note 4) Human Body Model......2kV




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 LLP package.






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