LP38513-ADJ Datasheet, PDF (1/18 Pages) National Semiconductor (TI) – 3A Fast-Transient Response Adjustable Low-Dropout Linear Voltage Regulator

LP38513-ADJ
www.ti.com
SNVS514C – JANUARY 2009 – REVISED APRIL 2013
LP38513-ADJ 3A Fast-Transient Response Adjustable Low-Dropout Linear Voltage
Regulator
Check for Samples: LP38513-ADJ
FEATURES
1
•2 2.25V to 5.5V Input Voltage Range
• Adjustable Output Voltage Range of 0.5V to
4.5V
• 3.0A Output Load Current
• ±2.0% Accuracy over Line, Load, and Full-
Temperature Range from -40°C to +125°C
• Stable with tiny 10 µF ceramic capacitors
• Enable pin
• Typically less than 1 µA of Ground pin current
when Enable pin is low
• 25dB of PSRR at 100 kHz
• Over-Temperature and Over-Current
Protection
• TO-263 THIN 5-Pin Surface Mount Package
APPLICATIONS
• Digital Core ASICs, FPGAs, and DSPs
• Servers
• Routers and Switches
• Base Stations
• Storage Area Networks
• DDR2 Memory
DESCRIPTION
The LP38513-ADJ Fast-Transient Response Low-
Dropout Voltage Regulator offers the highest-
performance in meeting AC and DC accuracy
requirements for powering Digital Cores. The
LP38513-ADJ uses a proprietary control loop that
enables extremely fast response to change in line
conditions and load demands. Output Voltage DC
accuracy at 2.5% over line, load and full temperature
range from -40°C to +125°C. The LP38513-ADJ is
designed for inputs from the 2.5V, 3.3V, and 5.0V rail,
is stable with 10 μF ceramic capacitors, and has an
adjustable output voltage. The LP38513-ADJ
provides excellent transient performance to meet the
demand of high performance digital core ASICs,
DSPs, and FPGAs found in highly-intensive
applications such as servers, routers/switches, and
base stations.
Typical Application Circuit
V_IN
ON
V_EN ^OFF
C_IN
10 PF
Ceramic
GND
IN
OUT
LP38513-ADJ
EN
ADJ
GND
V_OUT
R1
C_FF
C_OUT
10 PF
R2
Ceramic
GND
1
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2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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