描述 Description

The LDL212 provides 1.2 A of maximum current

from an input voltage range from 2.5 V to 18 V,

with a typical dropout voltage of 350 mV @ 1.2 A.

The high power supply rejection ratio of 87 dB at

120 Hz, and more than 40 dB at 100 kHz, makes

the LDL212 suitable for direct regulation in SMPS

and secondary linear regulation in DC-DC

converters. The LDL212 goes to shutdown mode

due to the enable logic control function, reducing

the total current consumption. The device also

includes the current limit, SOA and thermal

protections.

特性 Features

? Input voltage from 2.5 V to 18 V

? 20 V AMR

? Any fixed output voltages, from 1.2 V to 12 V

in 100 mV steps (from 1.2 V to 6.6 V in

50 mV steps) available on request

? Adjustable version from 1.18 V to

VIN-VDROP(MAX)

? Guaranteed output current 1.2 A

? Typical dropout 350 mV@1.2 A

? Undervoltage lockout

? Enable function

? Internal thermal, current and power limitation

? High PSRR: 87 dB @ 120 Hz, 75 dB @

1 kHz

? Operating temperature range: -40 °C to

125 °C

? Packages SO-8 batwing plastic

micropackage, DFN6 (3x3) and DFN6 (2x2)

Applications

? Consumer

? Industrial

? SMPS

? Point-of-load

? DC-DC post-regulation