Datasheet

SW1
FB1
SW2
ADJ2
DEF_1
VIN
EN_1
EN_2
MODE/
DATA
TPS62420
GND
R11
R12
L1
VIN2.5V-6V
C
10 F
IN
m
2.2 H
LPS4018
m
V
OUT1
C 2x10 F
GRM21BR61A106K
OUT1
m
R21
R22
L2
V
OUT2
C 2x10 F
GRM21BR61A106K
OUT2
m
C
33pF
ff2
2.2 H
LPS4018
m
TPS62420, TPS62421
www.ti.com SLVS676C –JUNE 2006–REVISED JUNE 2010
PARAMETER MEASUREMENT INFORMATION
TYPICAL CHARACTERISTICS
TABLE OF GRAPHS
FIGURE NO.
Efficiency V
OUT1
= 1.1V 1
Efficiency V
OUT1
= 1.575V 2
Efficiency V
OUT2
= 1.8V 3
Efficiency V
OUT2
= 3.3V 4
Efficiency vs V
IN
5, 6
DC Output Accuracy V
OUT1
= 1.1V 7
DC Output Accuracy V
OUT2
= 3.3V 8
F
OSC
vs V
IN
9
I
q
for one converter 10
I
q
for both converters, not switching 11
R
DSON
PMOS vs V
IN
12
R
DSON
NMOS vs V
IN
13
Light Load Output Voltage Ripple in Power Save Mode 14
Output Voltage Ripple in Forced PWM Mode 15
Output Voltage Ripple in PWM Mode 16
Forced PWM/ PFM ModeTransition 17
Load Transient Response PFM/PWM 18
Load Transient Response PWM Operation 19
Line Rransient Response 20
Startup Timing One Converter 21
Typical Operation V
IN
= 3.6V, V
OUT1
= 1.575V, VOUT2 = 1.8V 22
Typical Operation V
IN
= 3.6V, V
OUT1
= 1.8V, V
OUT2
= 3.0V 23
Typical Operation V
IN
= 3.6V, V
OUT1
= 1.2V, V
OUT2
= 1.2V 24
V
OUT1
Change With Easy Scale 25
Dynamic Voltage Positioning 26
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Product Folder Link(s): TPS62420 TPS62421