Dual LDO with Low Noise, Low IQ, and High PSRR

ISL9012 is a high performance dual LDO capable of sourcing 150mA current from Channel 1, and 300mA from Channel 2. The device has a low standby current and high-PSRR and is stable with output capacitance of 1μF to 10μF with ESR of up to 200mΩ.

Features

? Integrates two high performance LDOs

- VO1 - 150mA output

- VO2 - 300mA output

? Excellent transient response to large current steps

? Excellent load regulation: 1 voltage change across full range of load current

? High PSRR: 70dB @ 1kHz

? Wide input voltage capability: 2.3V to 6.5V

? Extremely low quiescent current: 45μA (both LDOs on)

? Low dropout voltage: typically 120mV @ 150mA

? Low output noise: typically 30μVRMS @ 100μA (1.5V)

? Stable with 1 to10μF ceramic capacitors

? Separate enable pins for each LDO

? POR output, with adjustable delay time indicates when the VO2 output is good

? Soft-start to limit input current surge during enable

? Current limit and overheat protection

? ±1.8 accuracy over all operating conditions

? Tiny 10 Ld 3x3mm DFN package

? -40°C to +85°C operating temperature range

? Pin compatible with Micrel MIC2212

? Pb-free (RoHS compliant)

Applications

? PDAs, Cell Phones and Smart Phones

? Portable Instruments, MP3 Players

? Handheld Devices including Medical Handhelds

ISL9012IRMMZ屬于集成電路（IC） > 線性 + 開關(guān)穩(wěn)壓器。瑞薩科技有限公司制造生產(chǎn)的ISL9012IRMMZ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(fù)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(gè)最小量，并且在工作時(shí)會(huì)將輸入端的任何多余電壓轉(zhuǎn)換為熱量。對于大多數(shù)應(yīng)用而言，雖然這種穩(wěn)壓器的效率低于開關(guān)模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應(yīng)用。