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SC1531

Part Number	SC1531
Manufacturer	Semtech Corporation
Description	200mA & 250mA SmartLDOs
Published	Apr 8, 2005
Detailed Description	200mA & 250mA SmartLDOsTM POWER MANAGEMENT Description The SC1531(A) is designed to maintain a glitch-free 3.3V output w...
Datasheet	SC1531 PDF File

Overview

200mA & 250mA SmartLDOsTM POWER MANAGEMENT Description The SC1531(A) is designed to maintain a glitch-free 3.
3V output when at least one of two inputs, 5V (VIN) and 3.
3V (VAUX), is present.
SC1531(A) Features Glitch-free transition between input sources Internal logic selects input source Gate drive for external PMOS bypass switch 5V detection with hysteresis 1% regulated output voltage accuracy 200mA load current capability (250mA for SC1531A) Remote sense SO-8 package u u u u Whenever VIN exceeds a predetermined threshold value, u the internal 3.
3V linear regulator is enabled, and DR is u pulled high.
u When VIN falls below a lower threshold value, DR is pulled u low and the internal li...

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