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LM3351

Features: Conversion of 3.3V to 5V, or 5V to 3.3VSmall Mini SO-8 packageNo inductor requiredApplicationAny mixed 5V and 3.3V systemLaptop computers and PDAsHandheld instrumentationPCMCIA cardsPinoutSpecificationsMaximum Input Voltage, Step-Down 5.5VMaximum Input Voltage, Step-Up 3.65VPower Dissipa...

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SeekIC No. : 004395263 Detail

LM3351: Features: Conversion of 3.3V to 5V, or 5V to 3.3VSmall Mini SO-8 packageNo inductor requiredApplicationAny mixed 5V and 3.3V systemLaptop computers and PDAsHandheld instrumentationPCMCIA cardsPinout...

LM3351 Data Sheet

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Part Number:
LM3351
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

 Conversion of 3.3V to 5V, or 5V to 3.3V
 Small Mini SO-8 package
 No inductor required


Application

 Any mixed 5V and 3.3V system
 Laptop computers and PDAs
 Handheld instrumentation
 PCMCIA cards


Pinout

Connection Diagram


Specifications

Maximum Input Voltage, Step-Down                       5.5V
Maximum Input Voltage, Step-Up                          3.65V
Power Dissipation (PD) (TA=25°C,                    500 mW
(Note 2))                                                                           
ja (Note 2)                                                      250°C/W
Tj Max (Note 2)                                                     150°C
Storage Temperature                          −65°C to +150°C
Lead Temperature (Soldering, 10                         260°C
secs)                                                                            
ESD Susceptibility (Note 3)                                        2kV
Not short circuit protected.


Description

The LM3351 is a CMOS charge-pump voltage converter which efficiently provides a 3.3V to 5V step-up, or 5V to 3.3V step-down. The LM3351 is pin for pin compatible with the LM3350 but consumes 66% less quiescent current. The LM3351 uses four small, low cost capacitors to provide the voltage conversion. It eliminates the cost, size and radiated EMI related to inductor based circuits, or the power loss of a linear regulator. Operating power conversion efficiency greater than 90% provides ideal performance for battery powered portable systems.

The architecture provides a fixed voltage conversion ratio of 3/2 or 2/3. Thus it can be used for other DC-DC conversions as well.




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