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1 A ultra low-dropout LDO with bias

Quantity $ per Unit Savings
1 - 9$0.691%
10 - 99$0.5618%
100 - 249$0.4633%
250 - 499$0.4338%
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In stock
Parameter NameParameter Value
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius85.0
Packing TypeTape And Reel
RoHs compliantEcopack2
Package NameWLCSP MSL1

The LD57100 is a high accuracy voltage regulator, which provides 1 A of current. It is equipped with an NMOS pass transistor, whose gate is biased by a dedicated pin, thus allowing the ultra-low drop performance even at very low input voltages.

It is available in Flip Chip6 (0.8x1.2 mm), maximizing the space saving. This device is stabilized with a small ceramic capacitor on the output. The ultra low drop, low quiescent current and short-circuit protection make the LD57100 suitable for low power battery-operated applications.

An enable logic control function puts the LD57100 in shutdown mode allowing a total current consumption lower than 0.1 µA. Thermal protection is also included.

Key features
  • Input voltage from VOUT to 5.5 V
  • Input bias supply pin from 3.0 V to 5.5 V
  • Ultra low-dropout voltage (40 mV typ. at 1 A load)
  • Low ground current (35 μA typ. at no load)
  • Output voltage tolerance: ±1% all over temperature range, ±0.5% at 25 °C
  • 1 A guaranteed output current
  • 50 mV output voltage step available from 0.4 V to 1.8 V
  • 100 mV output voltage step available from 1.9 V to 3.6 V
  • Adjustable version from 0.5 V to 3.0 V
  • Logic-controlled electronic shutdown
  • Internal current limit
  • Thermal shutdown
  • Output active discharge function
  • Available in Flip Chip6 (0.8x1.2 mm) package
  • Temperature range: -40 °C to 85 °C