Semtech SC470

Features

• Constant on-time for fast dynamic response
• Programmable VOUT range = 0.5 – VCCA
• VBAT range = 1.8V – 25V
• DC current sense using low-side RDS(ON) sensing or RSENSE in source of low-side MOSFET for greater accuracy
• Resistor programmable on-time
• Cycle-by-cycle current limit
• Digital soft-start
• Combined EN and PSAVE functions
• Over-voltage/under-voltage fault protection
• and PGD output
• 20% OVP threshold for simpler dynamic voltage transition circuitry
• 5µA typical shutdown current
• Low quiescent power dissipation
• Industrial temperature range
• 0.85% DC accuracy
• Integrated gate drivers with soft-switching
• 14 lead TSSOP and 16 pin MLPQ (4mm x 4mm) packages

Applications

• Graphics Cards
• Embedded Graphics Processors
• High Performance Processors

Packaging

MLPQ-16, TSSOP-14

Order Codes

• SC470IMLTRT: Lead-free, RoHS and WEEE compliant, 2500 pcs. Tape & Reel (MLPQ-16)
• SC470ITSTRT: Lead-free, RoHS and WEEE compliant, 2500 pcs. Tape & Reel (TSSOP-14)