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SC1101

Features: • Low cost / small size• Switch mode efficiency (90%)• 1% reference voltage accuracy• Over current protection• 500mA output drive• SO-8 packageApplication• Pentium® P55 Core Supply• Low Cost Microprocessor Supplies• Peripheral Car...

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SeekIC No. : 004485408 Detail

SC1101: Features: • Low cost / small size• Switch mode efficiency (90%)• 1% reference voltage accuracy• Over current protection• 500mA output drive• SO-8 packageApplicati...

SC1101 Data Sheet

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Part Number:
SC1101
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: 2024/11/13

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Product Details

Description



Features:

• Low cost / small size
• Switch mode efficiency (90%)
• 1% reference voltage accuracy
• Over current protection
• 500mA output drive
• SO-8 package




Application

• Pentium® P55 Core Supply
• Low Cost Microprocessor Supplies
• Peripheral Card Supplies
• Industrial Power Supplies
• High Density DC/DC Conversion




Pinout

Connection Diagram


Specifications

Parameter Symbol Maximum Units
Input Voltage VCC to GND -0.3 to +7 V
Ground Differential PGND to GND ± 1 V
Boost Input Voltage BST to GND -0.3 to +15 V
Operating Temperature TA 0 to +70 °C
Storage Temperature TJ -45 to +125 °C
Lead Temperature (Soldering) 10 seconds TL 300 °C
Thermal Resistance, Junction to Ambient JA 165 °C/W
Thermal Resistance, Junction to Case JC 40 °C/W



Description

The SC1101 is a versatile, low-cost, voltage-mode PWM controller designed for use in single ended DC/DC power supply applications. A simple, fixed-voltage buck regulator can be implemented using the SC1101 with a minimum of external components. Internal level shift and drive circuitry eliminates the need for an expensive p-channel, high-side switch. The small device footprint allows for compact circuit design.

SC1101 features include a temperature compensated voltage reference, triangle wave oscillator, current limit comparator, frequency shift over-current protection, and an internally compensated error amplifier. Pulse by pulse current limiting is implemented by sensing the differential voltage across an external resistor, or an appropriately sized PC board trace.

The SC1101 operates at a fixed frequency of 200kHz, providing an optimum compromise between efficiency, external component size, and cost




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