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TPS62420DRCRG4 Datasheet(PDF) 7 Page - Texas Instruments

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Part # TPS62420DRCRG4
Description  2.25MHz 600mA/1000mA Dual Step Down Converter In Small 3x3mm QFN Package
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS62420DRCRG4 Datasheet(HTML) 7 Page - Texas Instruments

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PARAMETER MEASUREMENT INFORMATION
SW1
FB1
SW2
ADJ2
DEF_1
VIN
EN_1
EN_2
MODE/
DATA
TPS62420
GND
R11
R12
L1
VIN2.5V-6V
C
10 F
IN
m
2.2 H
LPS4018
m
VOUT1
C
2x10 F
GRM21BR61A106K
OUT1
m
R21
R22
L2
VOUT2
C
2x10 F
GRM21BR61A106K
OUT2
m
C
33pF
ff2
2.2 H
LPS4018
m
TYPICAL CHARACTERISTICS
TABLE OF GRAPHS
TPS62420
SLVS676B – JUNE 2006 – REVISED OCTOBER 2006
FIGURE NO.
Efficiency VOUT1 = 1.1V
1
Efficiency VOUT1 = 1.575V
2
Efficiency VOUT2 = 1.8V
3
Efficiency VOUT2 = 3.3V
4
Efficiency
vs VIN
5, 6
DC Output Accuracy VOUT1 = 1.1V
7
DC Output Accuracy VOUT2 = 3.3V
8
FOSC
vs VIN
9
Iq for one converter
10
Iq for both converters, not switching
11
RDSON PMOS
vs VIN
12
RDSON NMOS
vs VIN
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 VIN = 3.6V, VOUT1 = 1.575V, VOUT2 = 1.8V
22
Typical Operation VIN = 3.6V, VOUT1 = 1.8V, VOUT2 = 3.0V
23
Typical Operation VIN = 3.6V, VOUT1 = 1.2V, VOUT2 = 1.2V
24
VOUT1 Change With Easy Scale
25
7
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