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LM3243 Fiches technique(PDF) 10 Page - Texas Instruments

No de pièce LM3243
Description  LM3243 High-Current Step-Down Converter for 2G, 3G, and 4G RF Power Amplifiers
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

LM3243 Fiches technique(HTML) 10 Page - Texas Instruments

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20 s/DIV
2V/DIV
VOUT
2V/DIV
VSW
2V/DIV
EN
40 s/DIV
2V/DIV
VOUT
2V/DIV
VSW
1A/DIV
Inductor
Current
100 s/DIV
50 mV/DIV
VOUT
1V/DIV
VIN
20 s/DIV
2V/DIV
VOUT
1V/DIV
VSW
2V/DIV
EN
LM3243
SNVS782C – OCTOBER 2010 – REVISED AUGUST 2015
www.ti.com
Typical Characteristics (continued)
VIN = 3.6 V to 4.2 V
RLOAD = 6.8 Ω
VOUT = 1 V
VIN = 3.8 V
VOUT = 1 V
No load, EN = Low-to-High
Figure 13. Line Transient
Figure 14. Start-up in PFM Mode
VIN = 4.2 V
VOUT = 3.4 V
No load, EN = Low-to-High
VIN = 4.2 V
RLOAD = 6.8 Ω to VOUT Shorted
VOUT = 2.5 V
Figure 15. Start-up In PWM Mode
Figure 16. Timed-Current Limit
10
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