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TPS84210RKGR Datasheet(Folha de dados) 5 Page - Texas Instruments

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Nome de Peças. TPS84210RKGR
descrição  2.95-V to 6-V Input, 2-A Synchronous Buck, Integrated Power Solution
Download  29 Pages
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Fbricantes  TI1 [Texas Instruments]
Página de início  http://www.ti.com
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 5 page
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PWRGD
VIN
PGND
PH
VOUT
RT/CLK
VADJ
STSEL
SS/TR
VSENSE+
TPS84210
PWRGD
Logic
+
+
VREF
Comp
Power
Stage
and
Control
Logic
Thermal Shutdown
Shutdown
Logic
VIN
UVLO
OSC w/PLL
INH/UVLO
AGND
OCP
TPS84210
www.ti.com
SLUSAN7A – SEPTEMBER 2011 – REVISED MARCH 2012
ELECTRICAL CHARACTERISTICS (continued)
Over -40°C to 85°C free-air temperature, VIN = 3.3 V, VOUT = 1.8 V, IOUT = 2A,
CIN1 = 47 µF ceramic, CIN2 = 220 µF poly-tantalum, COUT1 = 47 µF ceramic, COUT2 = 100 µF poly-tantalum (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Ceramic
47 (5)
CIN
External input capacitance
µF
Non-ceramic
220(5)
Ceramic
47 (6)
150
650(7)
µF
COUT
External output capacitance
Non-ceramic
100(6)
1000(7)
Equivalent series resistance (ESR)
25
m
(5)
A minimum of 47µF of ceramic capacitance is required across the input for proper operation. Locate the capacitor close to the device.
An additional 220µF of bulk capacitance is recommended. See Table 5 for more details.
(6)
The amount of required output capacitance varies depending on the output voltage (see Table 3 ). The amount of required capacitance
must include at least 47µF of ceramic capacitance. Locate the capacitance close to the device. Adding additional capacitance close to
the load improves the response of the regulator to load transients. See Table 3 and Table 5 for more details.
(7)
When using both ceramic and non-ceramic output capacitance, the combined maximum must not exceed 1200µF.
DEVICE INFORMATION
FUNCTIONAL BLOCK DIAGRAM
Copyright © 2011–2012, Texas Instruments Incorporated
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Product Folder Link(s): TPS84210




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