ST8568 500mA High-PSRR Low-Dropout (LDO) Linear Regulator

Name: ST8568 500mA High-PSRR Low-Dropout (LDO) Linear Regulator
Brand: STST
SKU: ST8568

ST8568

The ST8568 is a 500mA high-PSRR, low-dropout linear regulator (LDO) with 70dB ripple rejection at 1kHz, low 47uVrms output noise and only 300mV dropout at 300mA load. It draws 35uA typical quiescent current and 0.1uA in shutdown, and a built-in 1.5K discharge resistor quickly discharges the output when CE is low. The output is customizable from 1.0V to 4.5V in 0.1V steps with ±2% accuracy, with current limit and foldback short-circuit protection, in SOT-23-3, SOT-23-5, SC-70-5 and DFN1x1-4 packages for cellular phones and battery-powered equipment.

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Specifications

VIN2.0V~6V

VOUT1.0~4.5V (customizable in 0.1V steps)

Accuracy±2%

PSRR70dB@1kHz

IQ35uA (typ)/0.1uA (shutdown)

IOUT(MAX)500mA

PackageSOT-23-3, SOT-23-5, SC-70-5, DFN1x1-4

Product details

Overview

The ST8568 series are positive-output, low-power, low-dropout linear regulators. The output voltage is customizable from 1.0V to 4.5V in 0.1V steps, and the devices operate over a wide 2.0V to 6V input range. The ST8568 integrates a high-accuracy voltage reference, error amplifier, current limit circuit and output driver, and offers excellent load and line transient response and good temperature characteristics to assure the stability of the chip and the power system; trimming technology guarantees output voltage accuracy within ±2%. The ST8568 is available in lead-free SOT-23-3, SOT-23-5, SC-70-5 and DFN1x1-4 packages.

Features

Output voltage range: 1.0V ~ 4.5V (customizable in 0.1V steps)
Low power consumption: 35uA quiescent current (typ.)
Low output noise: 47uVrms
Shutdown mode current: 0.1uA
Low dropout: 300mV at 300mA (typ.)
High ripple rejection: 70dB at 1kHz (typ.)
Low temperature coefficient: ±100ppm/°C
Line regulation: 0.05%/V
Built-in 1.5K discharge resistor when CE is low
Output accuracy: ±2%
Output current limit and foldback short-circuit protection