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LM3253 Datasheet(PDF) 11 Page - Texas Instruments

No. de pieza LM3253
Descripción Electrónicos  High-Current Step-Down Converter for 2G/3G/4G RF Power Amplifiers
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

LM3253 Datasheet(HTML) 11 Page - Texas Instruments

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100 s/DIV
50 mV/DIV
VOUT
1V/DIV
VIN
20 s/DIV
2V/DIV
VOUT
1V/DIV
VSW
2V/DIV
EN
100 Ps/DIV
100 mV/
DIV
VOUT
IOUT
500 mA/
DIV
100 s/DIV
50 mV/DIV
VOUT
1V/DIV
VIN
100 Ps/DIV
20 mV/
DIV
VOUT
200 mA/
DIV
IOUT
100 Ps/DIV
50 mV/
DIV
VOUT
500 mA/
DIV
IOUT
LM3253
www.ti.com
SNVS791Q – FEBRUARY 2012 – REVISED MAY 2013
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Load Transient in PWM Mode
Load Transient in PWM Mode
VIN = 3.8V, VOUT = 2.5V, IOUT = 0mA to 300mA
VIN = 3.8V, VOUT = 3V, IOUT = 0mA to 700mA
Figure 14.
Figure 15.
Load Transient in PWM Mode
Line Transient
VIN = 4.2V, VOUT = 3V, IOUT = 0mA to 1.2A
VIN = 3.6V to 4.2V, VOUT = 2.5V, RLOAD = 6.8Ω
Figure 16.
Figure 17.
Line Transient
Startup in PFM Mode
VIN = 3.6V to 4.2V, VOUT = 1V, RLOAD = 6.8Ω
VIN = 3.8V, VOUT = 1V, No Load, EN = LOW to HIGH
Figure 18.
Figure 19.
Copyright © 2012–2013, Texas Instruments Incorporated
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