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KB3301

Features: `90% Efficiency` High Supply Capability to Deliver 5.0V 500mA with input 3.6V-4.2V` 14A Quiescent (switch-off) Supply Current` 500KHz Fixed Switching Frequency` Zero Shutdown Mode Supply Current` Providing Flexibility for Using Internal andExternal Power Switches` 1.0V Low Start-up Input...

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SeekIC No. : 004384105 Detail

KB3301: Features: `90% Efficiency` High Supply Capability to Deliver 5.0V 500mA with input 3.6V-4.2V` 14A Quiescent (switch-off) Supply Current` 500KHz Fixed Switching Frequency` Zero Shutdown Mode Supply C...

KB3301 Data Sheet

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Part Number:
KB3301
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: 2024/4/18

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Product Details

Description



Features:

`  90% Efficiency
` High Supply Capability to Deliver 5.0V 500mA
    with input 3.6V-4.2V
` 14A Quiescent (switch-off) Supply Current
` 500KHz Fixed Switching Frequency
` Zero Shutdown Mode Supply Current
` Providing Flexibility for Using Internal and
    External Power Switches
` 1.0V Low Start-up Input Voltage
` Small SOT-26 & SOT89-5 Package


Application

· LCD Panel
· DSC
· MP3
· Wireless Equipment
· Portable Instrument
· PDA


Pinout

Connection Diagram


Specifications

Paramenter Symbol RatingsV Unit
Supply Voltage Vin - 0.3V~7V V
LX Pin Switch Voltage VLX - 0.3~(VDD + 0.8V) V
Other I/O Pin Voltages Vss - 0.3V~� (VDD + 0.3V) V
Lx Pin Switch Current ILX 2.5 A
EXT Pin Driver Current IEXT 200 mA
Package Thermal Resistance SOT-26 Pd 145 /W
SOT-89-5 45
Operating Junction Temperature Tj 125
Storage Temperature Range Tstg −65 ~ 150



Description

The KB3301 is a small, high efficiency, and low voltage step-up DC/DC converter with an Adaptive Current Mode PWM control loop, includes an error amplifier, ramp  generator, comparator, switch pass element and driver in which providing a stable and high efficient operation over a wide range of load currents. It operates in stable waveforms without external compensation.

The low start-up input voltage below 0.8V makes KB3301 suitable for 1 to 4 battery cells applications of providi up to 300mA output current. The 500KHz high switching rate minimized the size of external components. Besides,the 14A low quiescent current together with high effic-iency maintains long battery lifetime.

The KB3301 is available in small package SOT-26 and SOT89-5

 




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