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參數(shù)資料
| 型號： | TPS84210RKGT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PQCC39 |
| 封裝： | 9 X 11 MM, 2.80 MM HEIGHT, GREEN, PLASTIC, BQFN-39 |
| 文件頁數(shù)： | 22/26頁 |
| 文件大?。?/td> | 875K |
| 代理商： | TPS84210RKGT |
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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
SLUSAN7
– SEPTEMBER 2011
ELECTRICAL CHARACTERISTICS (continued)
Over -40
°C to 85°C free-air temperature, VIN = 3.3 V, VOUT = 1.8 V, IOUT = 2A,
CIN1 = 47 F ceramic, CIN2 = 220 F poly-tantalum, COUT1 = 47 F ceramic, COUT2 = 100 F poly-tantalum (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Ceramic
47 (5)
CIN
External input capacitance
F
Non-ceramic
220(5)
Ceramic
47 (6)
150
650(7)
F
COUT
External output capacitance
Non-ceramic
100(6)
1000(7)
Equivalent series resistance (ESR)
25
m
(5)
A minimum of 47
F of ceramic capacitance is required across the input for proper operation. Locate the capacitor close to the device.
An additional 220
F 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 47
F 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 1200
F.
DEVICE INFORMATION
FUNCTIONAL BLOCK DIAGRAM
Copyright
2011, Texas Instruments Incorporated
5
Product Folder Link(s): TPS84210
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