Datasheet

TIME (2 Ps/DIV)
PFM MODE
V
SWITCH
(5V/Div)
V
OUT
(20 mV/Div)
Inductor Current
(100 mA/Div)
TIME (1 Ps/DIV)
PWM MODE
V
SWITCH
(5V/Div)
V
OUT
(20 mV/Div)
Inductor Current
(200 mA/Div)
I
LOAD
= 150 mA
V
OUT
(50 mV/Div)
I
LOAD
= 50 mA
TIME (100 Ps/DIV)
CURRENT LOAD STEP (50 mA - 350 mA)
I
LOAD
= 350 mA
V
OUT
(50 mV/Div)
I
LOAD
= 300 mA
TIME (100 ms/DIV)
CURREN
T LOAD ST
EP (100 mA
- 300 mA)
I
LOAD
= 100 mA
Inductor Current = 200 mA/Div
V
OUT
(50 mV/Div)
I
LOAD
= 0 mA
TIME (100 Ps/DIV)
CURRENT LOAD STEP (0 mA - 280 mA)
I
LOAD
= 280 mA
V
OUT
(50 mV/Div)
I
LOAD
= 350 mA
TIME (100 Ps/DIV)
CURRENT LOAD STEP (0 mA - 350 mA)
I
LOAD
= 0 mA
LM3670
www.ti.com SNVS250E –NOVEMBER 2004–REVISED FEBRUARY 2013
Typical Performance Characteristics (continued)
(unless otherwise stated: V
IN
= 3.6V, V
OUT
= 1.8V)
Load Transient Load Transient
I
LOAD
= 0mA to 280mA I
LOAD
= 0mA to 350mA
Figure 17. Figure 18.
Load Transient Load Transient
I
LOAD
= 50mA to 350mA I
LOAD
= 100mA to 300mA
Figure 19. Figure 20.
PFM Mode PWM Mode
V
SW
, V
OUT
, I
INDUCTOR
vs. Time V
SW
, V
OUT
, I
INDUCTOR
vs. Time
Figure 21. Figure 22.
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