English
Language : 

LM3253_16 Datasheet, PDF (11/25 Pages) Texas Instruments – High-Current Step-Down Converter
LM3253
www.ti.com
SNVS791Q – FEBRUARY 2012 – REVISED MAY 2013
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Load Transient in PWM Mode
VIN = 3.8V, VOUT = 2.5V, IOUT = 0mA to 300mA
Load Transient in PWM Mode
VIN = 3.8V, VOUT = 3V, IOUT = 0mA to 700mA
VOUT
20 mV/
DIV
VOUT
50 mV/
DIV
IOUT
100 Ps/DIV
Figure 14.
200 mA/
DIV
Load Transient in PWM Mode
VIN = 4.2V, VOUT = 3V, IOUT = 0mA to 1.2A
VOUT
100 mV/
DIV
IOUT
100 Ps/DIV
Figure 16.
500 mA/
DIV
Line Transient
VIN = 3.6V to 4.2V, VOUT = 1V, RLOAD = 6.8Ω
VOUT
50 mV/DIV
VIN
1V/DIV
100 s/DIV
Figure 18.
IOUT
100 Ps/DIV
Figure 15.
500 mA/
DIV
Line Transient
VIN = 3.6V to 4.2V, VOUT = 2.5V, RLOAD = 6.8Ω
VOUT
VIN
50 mV/DIV
1V/DIV
100 s/DIV
Figure 17.
Startup in PFM Mode
VIN = 3.8V, VOUT = 1V, No Load, EN = LOW to HIGH
VSW
VOUT
EN
20 s/DIV
Figure 19.
2V/DIV
1V/DIV
2V/DIV
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: LM3253
Submit Documentation Feedback
11