LMR16010 Datasheet, PDF (1/9 Pages) Texas Instruments – 1 A Step-Down Converter

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LMR16010
SNVSAH7 – DECEMBER 2015
LMR16010 SIMPLE SWITCHER^® 60 V, 1 A Step-Down Converter
1 Features
•1 4.5 V to 60 V Input Range
• 1 A Continuous Output Current
• Ultra-low 40 µA Operating Quiescent Current
• 155 mΩ High-Side MOSFET
• Minimum Switch-On Time: 90 ns
• Current Mode Control
• Adjustable Switching Frequency from 200 kHz to
2.5 MHz
• Frequency Synchronization to External Clock
• Internal Compensation for Ease of Use
• High Duty Cycle Operation Supported
• Precision Enable Input
• 1 µA Shutdown Current
• External Soft-start
• Thermal, Overvoltage and Short Protection
• 8-Pin HSOIC with PowerPAD™ Package
2 Applications
• Automotive Battery Regulation
• Industrial Power Supplies
• Telecom and Datacom Systems
• General Purpose Wide Vin Regulation
space
VIN up to 60 V
Simplified Schematic
CIN
RT
VIN
EN
BOOT
RT/SYNC
SW
PGOOD
FB
GND
CBOOT _L
D
RFBT
RFBB
VOUT
COUT
3 Description
The LMR16010 is a 60 V, 1 A SIMPLE SWITCHER^®
step down regulator with an integrated high-side
MOSFET. With a wide input range from 4.5 V to 60
V, it’s suitable for various applications from industrial
to automotive for power conditioning from
unregulated sources. The regulator’s quiescent
current is 40 µA in Sleep-mode, which is suitable for
battery powered systems. An ultra-low 1 μA current in
shutdown mode can further prolong battery life. A
wide adjustable switching frequency range allows
either efficiency or external component size to be
optimized. Internal loop compensation means that the
user is free from the tedious task of loop
compensation design. This also minimizes the
external components of the device. A precision
enable input allows simplification of regulator control
and system power sequencing. The device also has
built-in protection features such as cycle-by-cycle
current limit, thermal sensing and shutdown due to
excessive power dissipation, and output overvoltage
protection.
The LMR16010 is available in an 8-pin HSOIC
package with exposed pad for low thermal resistance.
Device Information ⁽¹⁾
PART NUMBER
PACKAGE BODY SIZE (NOM)
LMR16010PDDA
HSOIC (8) 4.89 mm x 3.90 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Efficiency vs Output Current
Vout = 5 V, fs = 600 KHz
100
90
80
70
60
50
40
0.0001
0.001
0.01
I_OUT (A)
V_IN = 12 V
V_IN = 24 V
0.1
1
D001
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. PRODUCT PREVIEW Information. Product in design phase of
development. Subject to change or discontinuance without notice.