LM2698

Features: ·1.9A, 0.2W, internal switch (typical)·Operating voltage as low as 2.2V·600kHz/1.25MHz adjustable frequency operation·Switchers Made Simple® software·8-Lead MSOP packageApplication·3.3V to 5V, 5V to 12V conversion·Distributed Power·Set-Top Boxes·DSL Modems·Diagnostic Medical Instrume...

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LM2698 Picture
SeekIC No. : 004395004 Detail

LM2698: Features: ·1.9A, 0.2W, internal switch (typical)·Operating voltage as low as 2.2V·600kHz/1.25MHz adjustable frequency operation·Switchers Made Simple® software·8-Lead MSOP packageApplication·3.3...

floor Price/Ceiling Price

Part Number:
LM2698
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/3/10

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Product Details

Description



Features:

·1.9A, 0.2W, internal switch (typical)
·Operating voltage as low as 2.2V
·600kHz/1.25MHz adjustable frequency operation
·Switchers Made Simple® software
·8-Lead MSOP package



Application

·3.3V to 5V, 5V to 12V conversion
·Distributed Power
·Set-Top Boxes
·DSL Modems
·Diagnostic Medical Instrumentation
·Boost Converters
·Flyback Converters
·SEPIC Converters



Pinout

  Connection Diagram


Specifications

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
VIN ..............................................−0.3V VIN 12V
SW Voltage............................... −0.3V VSW 18V
FB Voltage ....................................−0.3V VFB 7V
VC Voltage.................................. 0.965 < VC < 1.565
SHDN Voltage (Note 2) ............−0.3V VSHDN 7V
FSLCT (Note 2) ......................−0.3V VFSLCT 12V
Maximum Junction..............................................150
Temperature
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
(Note 5)................................................................ 2kV
Machine Model.................................................... 200V



Description

The LM2698 is a general purpose PWM boost converter. The 1.9A, 18V, 0.2ohm internal switch enables the LM2698 to provide efficient power conversion to outputs ranging from 2.2V to 17V. It can operate with input voltages as low as 2.2V and as high as 12V. Current-mode architecture provides superior line and load regulation and simple frequency compensation over the device's 2.2V to 12V input voltage range. The LM2698 sets the standard in power density and is capable of supplying 12V at 400mA from a 5V input. The LM2698 can also be used in flyback or SEPIC topologies. The LM2698 SIMPLE SWITCHER® features a pin selectable switching frequency of either 600kHz or 1.25MHz. This promotes flexibility in component selection and filtering techniques. A shutdown pin is available to suspend the device and decrease the quiescent current to 5A. An external compensation pin gives the user flexibility in setting frequency compensation, which makes possible the use of small, low ESR ceramic capacitors at the output. Switchers Made Simple® software is available to insure a quick, easy and guaranteed design. The LM2698 is available in a low profile 8-lead MSOP package.




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