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| LMR14206XMK Datasheet, PDF (5/17 Pages) Texas Instruments – LMR14206 SIMPLE SWITCHER 42Vin, 0.6A Step-Down Voltage Regulator in SOT-23 | |||
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www.ti.com
LMR14206
SNVS733D â OCTOBER 2011 â REVISED APRIL 2013
Typical Performance Characteristics
Input UVLO vs. Temperature
SHDN Pin Current vs. SHDN Pin Voltage
Figure 3.
Switching Node and Output Voltage Waveforms
Figure 4.
Load Transient Waveforms
VIN = 12V, VOUT = 3.3V, IOUT = 200 mA
Top trace: VOUT, 10 mV/div, AC Coupled
Bottom trace: SW, 5V/div, DC Coupled
T = 1 µs/div
Figure 5.
Start-Up Waveform
VIN = 12V, VOUT = 3.3V, IOUT = 300 mA to 200 mA to 300 mA
Top trace: VOUT, 20 mV/div, AC Coupled
Bottom trace: IOUT, 100 mA/div, DC Coupled
T = 200 µs/div
Figure 6.
Switch Current Limit vs. SHDN Pin Voltage
(Soft-Start Implementation)
1.2
1.0
0.9
0.7
0.6
VIN = 12V, VOUT = 3.3V, IOUT = 50 mA
Top trace: VOUT, 1V/div, DC Coupled
Bottom trace: SHDN, 2V/div, DC Coupled
T = 40 µs/div
Figure 7.
0.4
1.1 1.7 2.3 2.8 3.4 4.0
SHDN PIN VOLTAGE (V)
Figure 8.
Copyright © 2011â2013, Texas Instruments Incorporated
Product Folder Links: LMR14206
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