LD56100DPU33R STMicroelectronics

LD56100 Datasheet 1 A very low dropout fast transient ultra-low noise linear regulator Features Input voltage from 1.8 to 5.5 V Ultra-low dropout voltage (120 mV typ. at 1 A load and V = 3.3 V) OUT Very low quiescent current (100 A typ. at no-load, 0.03 A typ. in off mode) Output voltage tolerance: 1% from -40 C to +85 C Ultra-low Noise: 13 V RMS Noise from 10 Hz to 100 kHz at V = 3.0 V OUT High PSRR (70 dB 1 kHz) Wide range of output voltages available on request: from 1.0 V up to 5.0 V in 50 mV step Logic-controlled electronic shutdown Internal soft-start Optional output voltage discharge feature Compatible with ceramic capacitor C = 1 F OUT Internal current limit foldback and thermal protections Available in DFN8 (1.2 x 1.6 mm) Operating temperature range: -40 C to 125 C Applications Mobile phones Tablets Battery-powered systems Maturity status link Camera supply LD56100 Description The LD56100 high accuracy voltage regulator provides 1 A of current from an input voltage ranging from 1.8 V to 5.5 V, with a typical dropout voltage of 120 mV. It is available in DFN8 (1.2 x 1.6 mm) package, allowing the maximum space saving. The device is stabilized with a ceramic capacitor on the output. The ultra-low drop voltage, low quiescent current and fast transient response, together with the internal soft-start circuit, make the LD56100 suitable for low power battery-operated applications. An enable logic control function puts the LD56100 in shutdown mode allowing a total current consumption lower than 0.1 A. Short-circuit protection with current limit foldback and thermal protection are also included. DS12423 - Rev 2 - June 2020 www.st.com For further information contact your local STMicroelectronics sales office.LD56100 Diagram 1 Diagram Figure 1. Block diagram V IN V OUT Bias generator EN E nable Thermal protection FB (*) Current Bandgap LCON protection reference GND Note: (*) The output discharge MOSFET is optional. DS12423 - Rev 2 page 2/22