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SC1409

Features: • Internal MOSFETs• Excellent efficiency >88%• 1% Voltage accuracy• Built-in over current protection• 1A Output current• 5A Standby current• Industrial temperature range• 300kHz/500kHz selectable frequencyApplication• Handheld equi...

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SeekIC No. : 004485462 Detail

SC1409: Features: • Internal MOSFETs• Excellent efficiency >88%• 1% Voltage accuracy• Built-in over current protection• 1A Output current• 5A Standby current• In...

SC1409 Data Sheet

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Part Number:
SC1409
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:

• Internal MOSFETs
• Excellent efficiency >88%
• 1% Voltage accuracy
• Built-in over current protection
• 1A Output current
• 5A Standby current
• Industrial temperature range
• 300kHz/500kHz selectable frequency




Application

• Handheld equipment
• PDA power supplies
• Notebook I/O power supplies
• Peripheral card supplies
• High density DC/DC conversion




Pinout

Connection Diagram


Specifications

Parameter Symbol Maximum Units
Supply Voltage VCC -0.3 to +7 V
Ground Differential PGND to GND ± 1 V
Input Voltage VIN -0.3 to +7 V
Operating Ambient Temperature Range TA -40 to +85 °C
Operating Junction Temperature Range TJ -40 to +125 °C
Storage Temperature TSTG -60 to +150 °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
ESD Rating (Human Body Model) ESD 2 kV



Description

The SC1409 is a versatile, voltage-mode switching regulator designed for use in battery operated power supply applications. A simple, fixed-voltage buck regulator can be implemented using the SC1409 with a minimum of external components. Internal MOSFETs and control circuitry minimize board space and design time. The small device footprint allows for compact circuit design.

SC1409 features include a temperature compensated voltage reference, triangle wave oscillator, hiccup mode current limit, an internally compensated error amplifier, overcurrent temperature protection, soft start, and under voltage lock out.

The SC1409 operates at a selectable, fixed frequency of 300kHz or 500kHz, or can be synchronized to an external clock within this range, providing an optimum compromise between efficiency, external component size, and cost.




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