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TPS62730DRYT Datasheet(PDF) 6 Page - Texas Instruments

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Part # TPS62730DRYT
Description  Step Down Converter with Bypass Mode for Ultra Low Power Wireless
Download  25 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS62730DRYT Datasheet(HTML) 6 Page - Texas Instruments

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C
: Murata GRM155R60J225ME15D 2.2 F 0402 size
IN,
m
C
C
:
4 x Murata GRM155R61A104KA01D 100nF
1 x 2.2 F GRM155R60J225ME15D
1 x 1 F GRM155R61A105KE15D
L: Murata LQM21PN2R2NGC 2.2 H, FDK MIPSZ2012 2R2
OUT
Load
m
m
m
TPS6273x
VIN
ON/BYP
STAT
GND
VOUT
SW
V
OUT
V
1.9V - 3.9V
IN
C
2.2
IN
µF
C
2.2
OUT
µF
L 2.2 H
m
ON
BYP
R
STAT
10k
C
DEC
4x100nF
1x 1uF
1x 2.2uF
Additional Decoupling
capacitor bank
TPS62730
SLVSAC3
– MAY 2011
www.ti.com
PARAMETER MEASUREMENT INFORMATION
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
η
Efficiency
vs Output current
1
η
Efficiency
vs Input voltage
2
Output voltage
vs Output current
3
VOUT
Output Voltage
vs Input voltage
4
ISD
Shutdown current bypass mode
vs Input voltage
5
IQ
Operating quiescent current
vs Input voltage
6
Bypass Drain-source on-state resistance
vs Input voltage and ambient temperature
7
rDS(ON)
PMOS Static drain-source on-state resistance
vs Input voltage and ambient temperature
8
NMOS Static drain-source on-state resistance
vs Input voltage and ambient temperature
9
Automatic transition into bypass
Falling VIN
10
Automatic transition into bypass
Rising VIN
11
Switching frequency
vs IOUT vs VIN
12
VOUT
Output ripple voltage
vs IOUT vs VIN
13
PSRR
vs Frequency
14
Noise Density
vs Frequency
15
IOUT = 10 mA
16
IOUT = 1 mA
17
DC/DC mode operation
IOUT = 18 mA
18
IOUT = 50 mA
19
DC/DC mode operation line and load transient
20
performance
Automatic bypass transition with falling/rising input
21
voltage
DC/DC mode VOUT AC load regulation performance
22
Bypass mode operation VOUT AC behavior ON/BYP
23
= GND
Startup behavior
24
Spurious output noise
25
Battery current reduction
vs Battery voltage
26
Mode transition ON/BYP behavior
27
6
Copyright
© 2011, Texas Instruments Incorporated


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