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LMR10515 データシート(PDF) 1 Page - Texas Instruments

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部品番号 LMR10515
部品情報  LMR10515 SIMPLE SWITCHER 5.5Vin, 1.5A Step-Down Voltage Regulator in SOT-23 and WSON
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

LMR10515 データシート(HTML) 1 Page - Texas Instruments

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LMR10515
www.ti.com
SNVS728C – OCTOBER 2011 – REVISED APRIL 2013
LMR10515 SIMPLE SWITCHER® 5.5Vin, 1.5A Step-Down Voltage Regulator
in SOT-23 and WSON
Check for Samples: LMR10515
1
FEATURES
PERFORMANCE BENEFITS
23
Input Voltage Range of 3V to 5.5V
Extremely easy to use
Output Voltage Range of 0.6V to 4.5V
Tiny overall solution reduces system cost
Output Current up to 1.5A
DESCRIPTION
1.6MHz (LMR10515X) and 3 MHz (LMR10515Y)
The LMR10515 regulator is a monolithic, high
Switching Frequencies
frequency, PWM step-down DC/DC converter in a 5
Low Shutdown Iq, 30 nA Typical
pin SOT-23 and a 6 Pin WSON package. It provides
Internal Soft-Start
all the active functions to provide local DC/DC
conversion with fast transient response and accurate
Internally Compensated
regulation in the smallest possible PCB area. With a
Current-Mode PWM Operation
minimum of external components, the LMR10515 is
Thermal Shutdown
easy to use. The ability to drive 1.5A loads with an
internal 130 m
Ω PMOS switch results in the best
SOT-23 (2.92 x 2.84 x 1 mm) and WSON
power density available. The world-class control
(3 x 3 x 0.8 mm) Packaging
circuitry allows on-times as low as 30ns, thus
Fully Enabled for WEBENCH® Power Designer
supporting exceptionally high frequency conversion
over the entire 3V to 5.5V input operating range down
APPLICATIONS
to
the
minimum
output
voltage
of
0.6V.
The
LMR10515 is internally compensated, so it is simple
Point-of-Load Conversions from 3.3V, and 5V
to use and requires few external components.
Rails
Switching frequency is internally set to 1.6 MHz, or
Space Constrained Applications
3.0 MHz, allowing the use of extremely small surface
Battery Powered Equipment
mount inductors and chip capacitors. Even though the
operating frequency is high, efficiencies up to 93%
Industrial Distributed Power Applications
are easy to achieve. External shutdown is included,
Power Meters
featuring an ultra-low stand-by current of 30 nA. The
Portable Hand-Held Instruments
LMR10515 utilizes current-mode control and internal
compensation to provide high-performance regulation
over a wide range of operating conditions. Additional
features include internal soft-start circuitry to reduce
inrush current, pulse-by-pulse current limit, thermal
shutdown, and output over-voltage protection.
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.
2
WEBENCH is a registered trademark of Texas Instruments.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2011–2013, 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.


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