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TPS62052DGSRG4 Fiches technique(PDF) 4 Page - Texas Instruments

No de pièce TPS62052DGSRG4
Description  800-mA SYNCHRONOUS STEP-DOWN CONVERTER
Download  25 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

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TPS62052, TPS62054
TPS62056, TPS62050, TPS62051
SLVS432E – SEPTEMBER 2002 – REVISED JUNE 2011
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
VI = 7.2 V, VO = 3.3 V, IO = 300 mA, EN = VI, TA = –40°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OUTPUT
Adjustable output voltage
VO
TPS62050, TPS62051
0.7
6.0
V
range
V(FB)
Feedback voltage
TPS62050, TPS62051
0.5
V
FB leakage current
TPS62050, TPS62051
0.02
0.1
µA
Feedback voltage tolerance
TPS62050, TPS62051
VI = 2.7 V to 10 V, 0 mA< IO< 600 mA
-3%
3%
TPS62052
VI = 2.7 V to 10 V, 0 mA< IO< 600 mA
-3%
3%
Fixed output voltage
TPS62054
VI = 2.7 V to 10 V, 0 mA< IO< 600 mA
-3%
3%
tolerance(1)
TPS62056
VI = 3.75 V to 10 V, 0 mA< IO< 600 mA
-3%
3%
Resistance of internal voltage divider for fixed-voltage
700
1000
1300
k
versions
Line regulation
VO = 3.3 V, VI = 5 V to 10 V, IO = 600 mA
5.2
mV/V
Load regulation
VI = 7.2 V; IO = 10 mA to 600 mA
0.0045
%/mA
VI = 5 V; VO = 3.3 V; IO = 300 mA
93%
η
Efficiency
VI = 3.6 V; VO = 2.5 V; IO = 200 mA
93%
Duty cycle range for main switches
100%
Minimum ton time for main switch
100
ns
Shutdown temperature
145
°C
IO = 200 mA, VI = 5 V, Vo = 3.3 V,
Start-up time
1
ms
Co = 22 µF, L = 10 µH
(1)
The worst case rDS(on) of the PMOS in 100% mode for an input voltage of 3.3 V is 0.75 Ω. This value can be used to determine the
minimum input voltage if the output current is less than 600 mA with the TPS62056.
4
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Copyright © 2002–2011, Texas Instruments Incorporated
Product Folder Links: TPS62052 TPS62054 TPS62056 TPS62050 TPS62051


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