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TPS62730DRYT Fiches technique(PDF) 3 Page - Texas Instruments

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No de pièce TPS62730DRYT
Description  Step Down Converter with Bypass Mode for Ultra Low Power Wireless Applications
Download  28 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS62730DRYT Fiches technique(HTML) 3 Page - Texas Instruments

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TPS62732, TPS62733
TPS62730
www.ti.com
SLVSAC3C – MAY 2011 – REVISED DECEMBER 2012
RECOMMENDED OPERATING CONDITIONS
operating ambient temperature TA = –40 to 85°C (unless otherwise noted)
MIN
NOM
MAX
UNIT
Supply voltage VIN
1.9
3.9
V
Effective inductance
1.5
2.2
3
μH
Effective output capacitance connected to VOUT
1.0
10
μF
Operating junction temperature range, TJ
–40
125
°C
TA Operating free air temperature range
-40
85
ELECTRICAL CHARACTERISTICS
VIN = 3.0V, VOUT = 2.1V, ON/BYP = VIN, TA = –40°C to 85°C typical values are at TA = 25°C (unless otherwise noted), CIN =
2.2
μF, L = 2.2μH, COUT = 2.2μF, see parameter measurement information
PARAMETER
TEST CONDITIONS
MIN
TYP MAX
UNIT
SUPPLY
VIN
Input voltage range
1.9
3.9
V
ON/BYP = high, IOUT = 0mA. VIN = 3V
25
40
device not switching
IOUT = 0mA. device switching, VIN = 3.0V,
IQ
Operating quiescent current
μA
34
VOUT = 2.1V
ON/BYP = high, Bypass switch active, VIN =
23
VOUT = 2.1V
ISD
Shutdown current, Bypass Switch Activated(1)
ON/BYP = GND, leakage current into VIN
30
550
nA
ON/BYP = GND, leakage current into VIN,
110
TA = 60°C
ON/BYP
VIH TH
Threshold for detecting high ON/BYP
1.9 V
≤ VIN ≤ 3.9V , rising edge
0.8
1
V
VIL TH
Threshold for detecting low ON/BYP
1.9 V
≤ VIN ≤ 3.9V , falling edge
0.4
0.6
V
IIN
Input bias Current
0
50
nA
POWER SWITCH
High side MOSFET on-resistance
600
RDS(ON)
VIN = 3.0V
m
Low Side MOSFET on-resistance
350
Forward current limit MOSFET high-side
410
mA
ILIMF
VIN = 3.0V, open loop
Forward current limit MOSFET low side
410
mA
BYPASS SWITCH
RDS(ON) Bypass Switch on-resistance
VIN = 2.1V, IOUT = 20mA, TJmax = 85°C
2.9
3.8
VIN = 3V
2.1
VIT BYP
Automatic Bypass Switch Transition
ON/BYP =
TPS62730 (2.1V)
ON / falling VIN
2.14
2.20
2.3
Threshold (Activation / Deactivation)
high
OFF/ rising VIN
2.19
2.25
2.35
TPS62731 (2.05V)
ON / falling VIN
2.15
OFF / rising VIN
2.20
TPS62732 (1.9V)
ON / falling VIN
2.05
OFF / rising VIN
2.10
V
TPS62733 (2.3V)
ON / falling VIN
2.41
OFF/ rising VIN
2.48
TPS62734 (2.1V)
ON / falling VIN
2.23
OFF / rising VIN
2.28
TPS62735 (2.3V)
ON / falling VIN
2.23
OFF / rising VIN
2.33
(1)
Shutdown current into VIN pin, includes internal leakage
Copyright © 2011–2012, Texas Instruments Incorporated
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Product Folder Links: TPS62732 TPS62733 TPS62730


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