Datasheet

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SW15V/Div
SW25V/Div
I
coil1
200mA/Div
I
coil2
200mA/Div
V
IN
3.6V,
V
OUT1
:1.575V
V
OUT2
:1.8V
I
OUT1
=I
OUT2
=200mA
Timebase-100ns/Div
VIN=3.8V
IOUT1max=400mA
SW11V/Div
EN1/EN25V/Div
VOUT1
500mV/Div
Icoil500mA/Div
Timebase-200 s/Divm
SW15V/Div
SW25V/Div
I
coil1
200mA/Div
I
coil2
200mA/Div
V
IN
3.6V,
V
OUT1
:1.8V
V
OUT2
:3.0V
I
OUT1
=I
OUT2
=200mA
Timebase-100ns/Div
SW15V/Div
SW25V/Div
I
coil1
200mA/Div
I
coil2
200mA/Div
V
IN
3.6V,
V
OUT1
:1.2V
V
OUT2
:1.2V
I
OUT1
=I
OUT2
=200mA
Timebase-100ns/Div
DETAILED DESCRIPTION
OPERATION
TPS62410
SLVS737 – FEBRUARY 2007
TYPICAL OPERATION V
IN
= 3.6V,
STARTUP TIMING ONE CONVERTER V
OUT1
= 1.575V, V
OUT2
= 1.8V
Figure 21. Figure 22.
TYPICAL OPERATION V
IN
= 3.6V, TYPICAL OPERATION V
IN
= 3.6V,
V
OUT1
= 1.8V, V
OUT2
= 3.0V V
OUT1
= 1.2V, V
OUT2
= 1.2V
Figure 23. Figure 24.
V
OUT1
CHANGE WITH EASYSCALE
The TPS62410 includes two synchronous step-down converters. The converters operate with typically 2.25MHz
fixed frequency pulse width modulation (PWM) at moderate to heavy load currents. If Power Save Mode is
enabled, the converters automatically enter Power Save Mode at light load currents and operate in PFM (Pulse
13
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