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TPS62231DRYT Fiches technique(PDF) 7 Page - Texas Instruments

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No de pièce TPS62231DRYT
Description  3 MHz Ultra Small Step Down Converter in 1x1.5 SON Package
Download  28 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS62231DRYT Fiches technique(HTML) 7 Page - Texas Instruments

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TYPICAL CHARACTERISTICS
Table of Graphs
0.1
1
10
100
1000
I
-OutputCurrent-mA
O
0
10
20
30
40
50
60
70
80
90
100
MODE=GND,
V
=2.5V,
L =2.2 H(LQM2HPN2R2MJ0)
C
=4.7 F
OUT
OUT
m
m
V
=5V
IN
V
=2.9V
IN
V
=3.6V
IN
V
=4.2V
IN
0
10
20
30
40
50
60
70
80
90
100
1
10
100
1000
I
-OutputCurrent-mA
O
V
=5V
IN
V
=2.9V
IN
V
=3.6V
IN
MODE=V ,
V
=2.5V,
L =2.2 H(LQM2HPN2R2MJ0)
C
=4.7 F
IN
OUT
OUT
m
m
V
=4.2V
IN
TPS62230
TPS62231
TPS62232
www.ti.com ..................................................................................................................................................................................................... SLVS941 – APRIL 2009
FIGURE
η
Efficiency
vs Load current
1, 2, 3, 4, 5, 6, 7
VO
Output voltage
vs Output current
8, 9, 10, 11, 12, 13
14, 15, 16, 17, 18, 19,
Switching frequency
vs Output current
20
IQ
Quiescent current
vs Ambient temperature
21
ISD
Shutdown current
vs Ambient temperature
22
PMOS Static drain-source on-state
vs Supply voltage and ambient temperature
23
resistance
rDS(ON)
NMOS Static drain-source on-state
vs Supply voltage and ambient temperature
24
resistance
PSRR
Power supply rejection ratio
vs Frequency
25
Typical operation
26, 27, 28
PFM
29
Line transient response
PWM
30
Mode transition PFM / forced PWM
31
AC - load regulation performance
32, 33, 34
Load transient response
35, 36, 37, 38
Start-up
39, 40
–
–
Figure 1. Efficiency PFM/PWM Mode 2.5V Output Voltage
Figure 2. Efficiency Forced PWM Mode 2.5V Output
Voltage
Copyright © 2009, Texas Instruments Incorporated
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Product Folder Link(s): TPS62230 TPS62231 TPS62232


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