LMR14206 Regulator Datasheet

LMR14206 Datasheet PDF, Equivalent


Part Number

LMR14206

Description

0.6A Step-Down Voltage Regulator

Manufacture

etcTI

Total Page 21 Pages
PDF Download
Download LMR14206 Datasheet PDF


LMR14206
LMR14206
SNVS733D – OCTOBER 2011 – REVISED APRIL 2013
LMR14206 SIMPLE SWITCHER® 42Vin, 0.6A Step-Down Voltage Regulator in SOT-23
Check for Samples: LMR14206
All trademarks are the property of their respective owners.
1 Features
1 Input Voltage Range of 4.5V to 42V
• Output Voltage Range of 0.765V to 34V
• Output Vurrent up to 0.6A
• 1.25 MHz Switching Frequency
• Low Shutdown Iq, 16 µA Typical
• Short Circuit Protected
• Internally Compensated
• Soft-Start Function
• Thin 6-Pin SOT Package (2.97 x 1.65 x 1mm)
• Fully Enabled for WEBENCH® Power Designer
2 Performance Benefits
• Tight Accuracy for Powering Digital ICs
• Extremely Easy to Use
• Tiny Overall Solution Reduces System Cost
4 Description
The LMR14206 is a PWM DC/DC buck (step-down)
regulator. With a wide input range from 4.5V-42V,
they are suitable for a wide range of applications
such as power conditioning from unregulated
sources. They feature a low RDSON (0.9typical)
internal switch for maximum efficiency (85% typical).
Operating frequency is fixed at 1.25 MHz allowing the
use of small external components while still being
able to have low output voltage ripple. Soft-start can
be implemented using the shutdown pin with an
external RC circuit allowing the user to tailor the soft-
start time to a specific application.
The LMR14206 is optimized for up to 600 mA load
current with a 0.765V nominal feedback voltage.
Additional features include: thermal shutdown, VIN
under-voltage lockout, and gate drive under-voltage
lockout. The LMR14206 is available in a low profile 6-
pin SOT package.
3 Applications
• Point-of-Load Conversions from 5V, 12V, and 24V
Rails
• Space Constrained Applications
• Battery Powered Equipment
• Industrial Distributed Power Applications
• Power Meters
• Portable Hand-Held Instruments
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.

LMR14206
LMR14206
SNVS733D – OCTOBER 2011 – REVISED APRIL 2013
4.1
System Performance
Efficiency vs Load Current
VIN = 12V, VOUT = 1.2V and 3.3V
100
90
80
70
60
50
40
30
20
10
0
0.0
1.2Vout
3.3Vout
0.1 0.2 0.3 0.4 0.5
LOAD CURRENT (A)
0.6
VIN
CIN
LMR14206
VIN CB
SHDN SW
GND
FB
CBOOT
R1
R2
www.ti.com
Efficiency vs Load Current
VIN = 24V, VOUT = 1.2V and 3.3V
100
90
80
70
60
50
40
30
20
10
0
0.0
1.2Vout
3.3Vout
0.1 0.2 0.3 0.4 0.5
LOAD CURRENT (A)
0.6
L1 VOUT
D1
COUT
4.2 Connection Diagram
Figure 1.
LMR14206
CB 1
6 SW
GND 2
FB 3
PIN 1 ID 5 VIN
4 SHDN
2 Submit Documentation Feedback
Figure 2. 6-Pin SOT (Top View)
See DDC Package
Product Folder Links: LMR14206
Copyright © 2011–2013, Texas Instruments Incorporated


Features LMR14206 SNVS733D – OCTOBER 2011 – REVISED APRIL 2013 LMR14206 SIMPLE SWIT CHER® 42Vin, 0.6A Step-Down Voltage Re gulator in SOT-23 Check for Samples: LM R14206 All trademarks are the property of their respective owners. 1 Feature s •1 Input Voltage Range of 4.5V to 4 2V • Output Voltage Range of 0.765V t o 34V • Output Vurrent up to 0.6A • 1.25 MHz Switching Frequency • Low S hutdown Iq, 16 µA Typical • Short Ci rcuit Protected • Internally Compensa ted • Soft-Start Function • Thin 6- Pin SOT Package (2.97 x 1.65 x 1mm) • Fully Enabled for WEBENCH® Power Desi gner 2 Performance Benefits • Tight A ccuracy for Powering Digital ICs • Ex tremely Easy to Use • Tiny Overall So lution Reduces System Cost 4 Descripti on The LMR14206 is a PWM DC/DC buck (st ep-down) regulator. With a wide input r ange from 4.5V-42V, they are suitable f or a wide range of applications such as power conditioning from unregulated so urces. They feature a low RDSON (0.9Ω typical) internal switch for maximum efficiency (85% typic.
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