LX8213 Datasheet, PDF (1/11 Pages) Microsemi Corporation – 300mA Low Noise CMOS LDO Regulator

PRODUCTION DATASHEET
LX8213
®
300mA Low Noise CMOS LDO Regulator
TM
DESCRIPTION
KEY FEATURES
The LX8213 LDO regulator is part of
Microsemi’s family of positive voltage
regulator ICs using CMOS technology. The
device provides a compact and cost effective
solution featuring low power consumption
over a wide supply voltage range, high output
voltage accuracy, low dropout, excellent line
and load regulation, fast transient response,
and low noise.
The LX8213 operates over a wide input
voltage range of 2.5V to 6V, and consumes
only 60uA typical quiescent current at no load
and a low 0.1uA shutdown current. Output
voltage options include fixed 1.2V, 3.3V, or
an adjustable output voltage which may be
set from 1.2V to 5.5V. The LDO delivers up
to 300mA of output current, with a foldback
current limit of approximately 400mA. At
300mA load, dropout voltage measures only
170mV for a 3.3V output.
Tight load and line regulation is achieved
over the full output current and supply range.
The high bandwidth control loop provides fast
transient response to reduce output voltage
deviation using low cost external ceramic
capacitors in the 1uF range.
The LX8213 also exhibits low output
noise with only 60uV_RMS over a 100kHz
bandwidth. Power supply rejection exceeds
65dB at 100Hz.
Other features of LX8213 include an
active low shutdown input with a 3MΩ
internal pull-down for low cost power
sequencing, internal soft-start circuitry to
prevent inrush current, short circuit current
limit, and thermal overload protection.
The LX8213 operates over -40˚C to
+85˚C ambient temperature range and is
available in a tiny 5 pin SOT-23 ROHS
compliant package.
ƒ 2.5V to 6V Wide Input Voltage
Range
ƒ Fixed Output at 1.2V or 3.3V
ƒ Adjustable Output Voltage Range
from 1.2V to 5.5V
ƒ Low Quiescent Current of Typical
60uA
ƒ Low Dropout Voltage of Typical
170mV at 3.3V 300mA
ƒ Stable with Low ESR 1uF
Input/Output Bypass Ceramic
Capacitors
ƒ Ultra Low Shutdown Current of
Typical 0.1uA
ƒ Low Output Noise of Typical
60uV_RMS at VOUT=1.2V
ƒ Fast Transient Response
ƒ Shutdown Control Input
ƒ Foldback Current Limit
ƒ 50mA Short Circuit Limit
ƒ Over Temperature Protection
ƒ Standard Package SOT-23
ƒ RoHS Compliant
APPLICATIONS
ƒ Battery Operated Systems
ƒ Set-Top Box
ƒ LCD TV’s
ƒ Routers
ƒ Video Cards
ƒ Hand Held Instruments
T_A (°C)
-40 to +85
PACKAGE ORDER INFO
SE
Plastic SOT-23 5-pin
RoHS Compliant / Pb-free
LX8213-00ISE (Adjustable) Marking “ADYWL”
LX8213-12ISE (1.2V Fixed Output) Marking “AKYWL”
LX8213-33ISE (3.3V Fixed Output) Marking “ALYWL”
*Marking explanation:
A D YWL
Output Reference.
‘AD’ – Adjustable Output
‘AK’ – 1.2V Fixed Output
‘AL’ – 3.3V Fixed Output
‘Y’
Numerical single
digit year
reference.
(‘0’, ‘1’, ‘2’….’9')
‘W’
Bi-weekly code.
(‘A’ for 1^st-2^nd
week,…….,’Z’ for 51^th-
52^th week)
‘L’
Numerical single
digit sub-build lot
identity.
(‘0’, ‘1’, ‘2’,….’9')
THERMAL DATA
θ_JA = 250 °C/W
THERMAL RESISTANCE-
JUNCTION TO AMBIENT
Junction Temperature Calculation:
T_J = T_A + (P_D x θ_JA).
The θ_JA numbers are guidelines for
the thermal performance of the
device/pc-board system. All of the
above assume no ambient airflow.
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX8213-xxISE-TR)
Copyright © 2009
Rev. 1.1, 2009-03-24
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
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