Description

The LD59030 high accuracy voltage regulator provides 300 mA of maximum current

from an input voltage ranging from 1.5 V to 5.5 V, with a typical dropout voltage of

135 mV at VOUT = 3.3 V.

It is available in DFN4 1x1 package, allowing the maximum space saving.

The device works with a ceramic capacitor on the output. The ultra-low drop voltage,

low quiescent current and low noise features, together with the internal soft-start

circuit and output current fold-back protection, make the LD59030 suitable for low

power battery-operated applications.

An enable logic control function puts the LD59030 in shutdown mode allowing a total

current consumption lower than 0.03 μA.

Features

? Input voltage from 1.5 to 5.5 V

? Ultra low dropout voltage (135 mV typ. at 300 mA load)

? Very low quiescent current (28 μA typ. at no load, 0.03 μA typ. in off mode)

? Internal current fold-back

? Output voltage tolerance: ± 1 @ 25 °C

? 300 mA guaranteed output current

? High PSRR: 75 dB@1 kHz

? Wide range of output voltages available on request: from 0.8 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 COUT = 0.47 μF

? Thermal protection

? Available in DFN4 1x1

? Operating temperature range: -40 °C to 125 °C

LD59030DTPU12R屬于集成電路（IC） > 線性 + 開關穩(wěn)壓器。意法半導體（ST）集團制造生產(chǎn)的LD59030DTPU12R穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個最小量，并且在工作時會將輸入端的任何多余電壓轉換為熱量。對于大多數(shù)應用而言，雖然這種穩(wěn)壓器的效率低于開關模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應用。