STMicroelectronics

LD57100 1 A Ultra LDO Voltage Regulator with Bias

STMicroelectronics' high-accuracy voltage regulator provides 1 A of current

Image of STMicroelectronics LD57100 1 A Ultra LDO Voltage Regulator with BiasSTMicroelectronics' LD57100 is a high-accuracy voltage regulator that provides 1 A of current. It is equipped with an NMOS pass transistor whose gate is biased by a dedicated pin, thus allowing ultra-low drop performance even at very low input voltages.

It is available in Flip Chip6 (0.8 mm x 1.2 mm), maximizing the space savings. 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.

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, on request, 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 (0.8 mm x 1.2 mm) package
  • Temperature range: -40°C to +85°C

LD57100 1 A Ultra LDO Voltage Regulator with Bias

ImageManufacturer Part NumberDescriptionOutput ConfigurationOutput TypeNumber of RegulatorsAvailable QuantityPriceView Details
IC REG LINEAR 3.3V 1A 6-FLIPCHIPLD57100J330RIC REG LINEAR 3.3V 1A 6-FLIPCHIPPositiveFixed1546 - Immediate$0.70View Details
Published: 2023-09-25