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The ISL80111, ISL80112, and ISL80113 are ultra low dropout

LDOs providing the optimum balance between performance, size

and power consumption in size constrained designs for data

communication, computing, storage and medical applications.

These LDOs are specified for 1A, 2A and 3A of output current and

are optimized for low voltage conversions.Operating with a VIN of

1V to 3.6V and with a legacy 3.3V to 5V on the BIAS, the VOUT is

adjustable from 0.8V to 3.3V. With a VIN PSRR greater than 40dB

at 100kHz makes these LDOs an ideal choice in noise sensitive

applications. The guaranteed ¡À1.6 VOUT accuracy overall

conditions lends these parts to suppling an accurate voltage to

the latest low voltage digital ICs.

An enable input allows the part to be placed into a low quiescent

current shutdown mode. A submicron CMOS process is utilized for

this product family to deliver best-in-class analog performance

and overall value for applications in need of input voltage

conversions typically below 2.5V. It also has the superior load

transient regulation unique to a NMOS power stage. These LDOs

consume significantly lower quiescent current as a function of

load compared to bipolar LDOs.

Features

? Ultra low dropout: 75mV at 3A, (typ)

? Excellent VIN PSRR: 70dB at 1kHz (typ)

? ¡À1.6 guaranteed VOUT accuracy for -40?C < TJ < +125?C

? Very fast load transient response

? Extensive protection and reporting features

? VIN range: 1V to 3.6V, VOUT range: 0.8V to 3.3V

? Small 10 Ld 3x3 DFN package

Applications

? Noise-sensitive instrumentation and medical systems

? Data acquisition and data communication systems

? Storage, telecommunications and server equipment

? Low voltage DSP, FPGA and ASIC core power supplies

? Post-regulation of switched mode power supplies