Datasheet
LP38500-ADJ, LP38502-ADJ
www.ti.com
SNVS539F –NOVEMBER 2007–REVISED APRIL 2013
LP38500/2-ADJ, LP38500A/2A-ADJ 1.5A FlexCap Low Dropout Linear Regulator for 2.7V to
5.5V Inputs
Check for Samples: LP38500-ADJ, LP38502-ADJ
1
FEATURES
DESCRIPTION
TI's FlexCap LDO's feature unique compensation that
2
• FlexCap: Stable with Ceramic, Tantalum, or
allows the use of any type of output capacitor with no
Aluminum Capacitors
limits on minimum or maximum ESR. The LP38500/2
• Stable with 10 µF Input/output Capacitor
series of low-dropout linear regulators operates from
• Adjustable Output Voltage from 0.6V to 5V
a +2.7V to +5.5V input supply. These ultra low
dropout linear regulators respond very quickly to step
• Low Ground Pin Current
changes in load, which makes them suitable for low
• 25 nA Quiescent Current in Shutdown Mode
voltage microprocessor applications. Developed on a
• Ensured Output Current of 1.5A
CMOS process, (utilizing a PMOS pass transistor),
the LP38500/2 has low quiescent current that
• Available in DDPAK/TO-263, PFM, and WSON-8
changes little with load current.
Packages
Ground Pin Current: Typically 2 mA at 1.5A load
• Ensured V
ADJ
Accuracy of ±1.5% @ 25°C (A
current.
Grade)
• Ensured Accuracy of ±3.5% @ 25°C (STD)
Disable Mode: Typically 25 nA quiescent current
when the Enable pin is pulled low.
• Over-Temperature and Over-Current
Protection
Simplified Compensation: Stable with any type of
output capacitor, regardless of ESR.
• −40°C to +125°C Operating T
J
Range
• Enable Pin (LP38502)
Precision Output: "A" grade versions available with
1.5% V
ADJ
tolerance (25°C) and 3% over line, load
and temperature.
APPLICATIONS
• ASIC Power Supplies In:
– Printers, Graphics Cards, DVD Players
– Set Top Boxes, Copiers, Routers
• DSP and FPGA Power Supplies
• SMPS Regulator
• Conversion from 3.3V or 5V Rail
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2007–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.