Voltage Regulator. LMR10510 Datasheet

LMR10510 Regulator. Datasheet pdf. Equivalent

Part LMR10510
Description Step-Down Voltage Regulator
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LMR10510
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LMR10510
SNVS727C – OCTOBER 2011 – REVISED JUNE 2019
LMR10510 5.5-VIN, 1-A Step-Down Voltage Regulator
in SOT-23 and WSON Packages
1 Features
1 Input Voltage Range of 3 V to 5.5 V
• Output Voltage Range of 0.6 V to 4.5 V
• Output Current up to 1 A
• 1.6-MHz (LMR10510X) and 3-MHz (LMR10510Y)
Switching Frequencies
• Low Shutdown IQ, 30 nA Typical
• Internal Soft Start
• Internally Compensated
• Current-Mode PWM Operation
• Thermal Shutdown
• SOT-23 (2.92 × 2.84 × 1 mm) and WSON
(3 × 3 × 0.8 mm) Packaging
• Tiny Overall Solution Reduces System Cost
• Create a custom design using the LMR10510 with
the WEBENCH® Power Designer
2 Applications
• Point-of-Load Conversions from 3.3-V- and 5-V
Rails
• Space Constrained Applications
• Battery Powered Equipment
• Industrial Distributed Power Applications
• Power Meters
• Portable Hand-Held Instruments
3 Description
The LMR10510 regulator is a monolithic, high
frequency, PWM step-down DC/DC converter in a 5-
pin SOT-23 and a 6-pin WSON package. It provides
all the active functions to provide local DC/DC
conversion with fast transient response and accurate
regulation in the smallest possible PCB area. The
LMR10510 is internally compensated, so it is simple
to use and requires few external components. The
ability to drive 1-A loads with an internal 130-m
PMOS switch results in the best power density
available. The world-class control circuitry allows on-
times as low as 30 ns, thus supporting exceptionally
high frequency conversion over the entire 3-V to 5.5-
V input operating range down to the minimum output
voltage of 0.6 V.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMR10510
SOT-23 (5)
WSON (6)
2.90 mm × 1.60 mm
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
space
space
space
Simplified Application
EN
FB
R3
VIN
C1
LMR10510 GND
VIN
SW
L1
D1
VOUT
R1
C2
C3
R2
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.



LMR10510
LMR10510
SNVS727C – OCTOBER 2011 – REVISED JUNE 2019
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Description, continued .......................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 Recommended Operating Ratings............................ 4
7.3 Electrical Characteristics........................................... 5
7.4 Typical Performance Characteristics ........................ 6
8 Detailed Description .............................................. 9
8.1 Overview ................................................................... 9
8.2 Functional Block Diagram ....................................... 10
8.3 Feature Description................................................. 11
9 Application and Implementation ........................ 12
9.1 Application Information............................................ 12
9.2 Typical Application ................................................. 12
10 Layout................................................................... 20
10.1 Layout Guidelines ................................................. 20
10.2 Layout Example .................................................... 20
10.3 Thermal Definitions ............................................... 20
10.4 WSON Package .................................................... 22
11 Device and Documentation Support ................. 23
11.1 Device Support .................................................... 23
11.2 Receiving Notification of Documentation Updates 23
11.3 Community Resources.......................................... 23
11.4 Trademarks ........................................................... 23
11.5 Electrostatic Discharge Caution ............................ 23
11.6 Glossary ................................................................ 23
12 Mechanical, Packaging, and Orderable
Information ........................................................... 24
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (April 2013) to Revision C
Page
• Editorial changes only; add WEBENCH links and top navigator icon for reference design................................................... 1
Changes from Revision A (April 2013) to Revision B
Page
• Changed layout of National Semiconductor data sheet to TI format...................................................................................... 1
2
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