LMR14006_15 Datasheet, PDF (1/24 Pages) Texas Instruments – LMR14006 SIMPLE SWITCHER® 40 V 600 mA Buck Regulator With High Efficiency Sleep Mode

LMR14006
SNVSA10B – NOVEMBER 2013 – REVISED NOVEMBER 2014
LMR14006 SIMPLE SWITCHER^® 40 V 600 mA Buck Regulator With High Efficiency Sleep
Mode
1 Features
•1 Ultra Low 28 µA Standby Current in Sleep Mode
• Input Voltage Range 4 V to 40 V
• 1 µA Shutdown Current
• High Duty Cycle Operation Supported
• Output Current up to 600 mA
• 1.1 MHz and 2.1 MHz Switching Frequency
• Internal Compensation
• High Voltage Enable Input
• Internal Soft Start
• Over Current Protection
• Over Temperature Protection
• Small Overall Solution Size (TSOT-6L Package)
2 Applications
• Industrial Distributed Power Systems
• Automotive
• Battery Powered Equipment
• Portable Handheld Instruments
• Portable Media Players
3 Description
The LMR14006 is a PWM DC/DC buck (step-down)
regulator. With a wide input range of 4 V-40 V, it is
suitable for a wide range of application from industrial
to automotive for power conditioning from an
unregulated source. The regulator’s standby current
is 28 µA in sleep mode, which is suitable for battery
operating systems. An ultra low 1 µA current can
further prolong battery life in shutdown mode.
Operating frequency is fixed at 1.1 MHz (X version)
and 2.1 MHz (Y version) allowing the use of small
external components while still being able to have low
output ripple voltage. Soft-start and compensation
circuits are implemented internally, and these allow
the device to be used with minimized external
components. The LMR14006 is optimized for up to
600 mA load current which has a 0.765 V typical
feedback voltage. The device has built-in protection
features such as pulse by pulse current limit, thermal
sensing and shutdown due to excessive power
dissipation. The LMR14006 is available in a low
profile TSOT-6L package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMR14006
TSOT-6L
2.9mm × 1.6 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
VIN
Cin
VIN
SHDN
GND
LMR14006
CB
Cboot _L1
SW
D1
R1
FB
R2
Cout
Figure 1. Typical Application Schematic
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.