Linear Regulators & Controllers
  • SC4215H
    • Very Low Input /Very Low Dropout 2 Amp Linear Regulator With Enable
  • SC4216H
    • Very Low Input /Very Low Dropout 3 Amp Linear Regulator With Enable
  • SC4217
    • Very Low Input /Very Low Dropout 3 Amp Linear Regulator With Enable
  • SC561
    • Dual Output Low Noise LDO Linear Regulator
  • SC810
    • Single Input/Single Mode Single-cell Li-ion Battery Charger
  • SCDAS4F
    • Standard Recovery, High Current Center Tap and Doubler Rectifier Assemblies
Semtech SC1458

Semtech SC1458

Dual Output Low Noise LDO Linear Regulator

The SC1458 is a family of dual output, ultra-low dropout linear voltage regulators designed for use in battery powered wireless applications. Both versions of the SC1458 require an input voltage level between 2.5V and 5.5V. The SC1458A supplies 2.5V on OUTA and 1.8V on OUTB, while SC1458B supplies 2.85V on both outputs.

Features


  • Input Voltage Range — 2.5 to 5.5V
  • Output voltages — 2.8V and 1.8V (SC1458A), 2.85V and 2.85V (SC1458B)
  • Maximum output current — 300mA (each LDO)
  • Low 200mV maximum dropout at 200mA load
  • Quiescent current = 100μA (both LDOs enabled)
  • Shutdown current = 100nA
  • Output noise < 50μVRMS (SC1458B)
  • PSRR > 65dB at 1kHz (SC1458B)
  • Space saving package — MLPD-W6, 3mm x 3mm
  • Over-Temperature protection
  • Short-Circuit protection
  • Under-voltage lockout
  • Reset monitor for output A (SC1458A)

Applications


  • PDAs and Cellular Phones
  • GPS Devices
  • Palmtop Computers and Handheld Instruments
  • TFT/LCD Applications
  • Wireless Handsets
  • Digital Cordless Phones and PCS Phones
  • Personal Communicators
  • Two-Way Pagers
  • Wireless LAN

Packaging

MSOP-10

Order Codes

  • SC1458AWLTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape and Reel Only
  • SC1458BWLTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape and Reel Only