Dual Low Noise LDO
in 3mm×3mm MLF
TM
FEATURES
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300mA+300mA dual channel high accuracy
LDO
Ultra low output noise: 140
μ
V
RMS
Low ground current: 200
μ
A
Very low dropout: 150mV @300mA
Zero shutdown supply current
TTL-logic-controlled independent enable
input
Thermal and current limit protections
Ultra low droop load transient response
Ultra fast line transient response
Tiny 10pin 3mm x 3mm MLF (10L-TDLMF )
package
Fixed options 1.5V, 1.8V, 2.5V, 2.8V, 3.0V
and 3.3V
DESCRIPTION
The PL2211 is a dual CMOS low dropout linear
regulator with ultra-low-noise output, very low
dropout voltage and very low ground current.
The PL2211 operates from a 2.5V to 5.5V input
voltage range and delivers up to 300mA, with low
dropout of 150 mV at 300mA. The other features of
PL2211 include short-circuit protection and thermal-
shutdown protection.
Its dual channel and low noise feature is ideal for
microcontroller
and
DSP
based
handheld
applications.
Other key application areas for PL2211 also include
palmtop computers, PCMCIA cards and WLAN
cards.
The PL2211 has a special feature that if both EN
pin is enabled simultaneously the output of LDO2
delays 20us from output of LDO1 which helps to
minimize inrush startup current.
The PL2211 is available in tiny 10pin 3mm x 3mm
MLF (10L-TDLMF) package with fixed output
voltage versions.
APPLICATIONS
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Dual supply handheld products
Cellular and cordless phones
Wireless LAN cards
Digital camera
MP3 / MP4 / CD player
Pen drives
USB Hubs and USB 2.0
Mini PCI & PCI express cards
TYPICAL APPLICATION
July 2007
www.picsemi.com
© 2007 Power IC. All Rights Reserved.
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PICSEMI [ POWER IC LTD. ]
