ZXSC100

Features: • SuperSOT4™ switching transistor ZXT14N20DX:VCE(sat)45mV max@1A load• Efficiency maintained over a wide range of input voltages and load currents 82% efficiency @ VBATT=1V• Startup under full load• Minimum operating input voltage VBATT=0.926V• Adjusta...

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ZXSC100 Picture
SeekIC No. : 004552570 Detail

ZXSC100: Features: • SuperSOT4™ switching transistor ZXT14N20DX:VCE(sat)45mV max@1A load• Efficiency maintained over a wide range of input voltages and load currents 82% efficiency @ VBATT=...

floor Price/Ceiling Price

Part Number:
ZXSC100
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: 2024/3/28

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Product Details

Description



Features:

• SuperSOT4™ switching transistor ZXT14N20DX:VCE(sat)45mV max@1A load
• Efficiency maintained over a wide range of input voltages and load currents 82% efficiency @ VBATT=1V
• Startup under full load
• Minimum operating input voltage VBATT=0.926V
• Adjustable output voltage down to VBATT
• Quiescent current typically 150A referred to input voltage
• MSOP8 Package
• SO8 Package
• Demonstration boards available





Application

• Cordless Telephones
• MP3 Players
• PDA
• Pagers
• Battery Backup Supplies
• Electronic toothbrush
• GPS Receivers
• Digital Camera
• Palmtop Computers
• Hand Held Instruments
• Portable Medical Equipment
• Solar Powered Equipment
• LED Flashlight
• LED Backlight





Specifications

Part Number ZXSC100
Type Boost
Min and Max Input Voltage (V) 0.93 ~ 3.5
Output Voltage (V) Vin to Vm
Frequency (Hz) 200K Fixed
Efficiency (%) 82
Standby Quiescent Current (uA) typ 150


Supply Voltage ..................0.3 to 3.5V
Maximum Voltage Other Pins 0.3 to ........ VCC+0.3V
Power Dissipation
MSOP8 ........................ 500mW
SO8 ..........................780mW
Operating Temperature...............0 to 70
Storage Temperature .............. -55 to 125
Junction Temperature..................150





Description

The ZXSC100 series is designed for DC-DC applications where step-up voltage conversion from very low input voltages is required. These applications mainly operate from single nickel cadmium or nickel metal hydride battery cells.

The ZXSC100 devices are non-synchronous PFM, DC-DC controller ICs which drive an external transistor. Zetex SuperSOT4™ switching transistors, with saturation resistance as low as 13m, are recommended as the external switching element. These bipolar transistors are the best switching devices available for this type of DC-DC conversion, enabling high efficiency conversion with input voltages down to below 1 volt.

The circuit can start up under full load with regulation maintained down to an input voltage of only 0.926 volts. The solution configuration ensures optimum efficiency over a wider range of load currents, several circuit configurations are possible with power dissipation up to 2W. The step up output voltage is easily programmed with external resistors, the non-synchronous architecture and SuperSOT4™ device enabling an output voltage down to the input voltage level. For best performance the ZXSC100 quiescent current is a small 150A ensuring minimum battery drain in no load conditions.

For the best in space saving the ZXSC100 is offered in the MSOP8 package, however the devices are also available in SO8 packaging for applications where space saving is not so critical.

The IC and discrete combination offers the ultimate cost vs performance solution for single cell DC-DC conversion.






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