參數(shù)資料
型號： TPS75225Q
廠商： Texas Instruments, Inc.
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
中文描述： 快速瞬態(tài)響應(yīng)2 -低壓差電壓調(diào)節(jié)器
文件頁數(shù)： 25/29頁
文件大?。?/td> 446K
代理商： TPS75225Q
TPS75201Q, TPS75215Q, TPS75218Q, TPS75225Q, TPS75233Q WITH RESET
TPS75401Q, TPS75415Q, TPS75418Q, TPS75425Q, TPS75433Q WITH POWER GOOD
FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS242B – MARCH 2000 – REVISED JUNE 2003
25
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
THERMAL INFORMATION
thermally enhanced TSSOP-20 (PWP – PowerPad
) (continued)
If the system implements a TPS75233QPWP regulator, where V
I
= 5 V and I
O
= 800 mA, the internal power
dissipation is:
PD(total)
VI
VO
IO
(5
3.3)
0.8
1.36 W
(9)
Comparing P
D(total)
with P
D(max)
reveals that the power dissipation in this example does not exceed the
calculated limit. When it does, one of two corrective actions should be made: raising the power-dissipation limit
by increasing the airflow or the heat-sink area, or lowering the internal power dissipation of the regulator by
reducing the input voltage or the load current. In either case, the above calculations should be repeated with
the new system parameters.
mounting information
The primary requirement is to complete the thermal contact between the thermal pad and the PWB metal. The
thermal pad is a solderable surface and is fully intended to be soldered at the time the component is mounted.
Although voiding in the thermal-pad solder-connection is not desirable, up to 50% voiding is acceptable. The
data included in Figures 26 and 27 is for soldered connections with voiding between 20% and 50%. The thermal
analysis shows no significant difference resulting from the variation in voiding percentage.
Figure 29 shows the solder-mask land pattern for
the PWP package. The minimum recommended
heat-sink area is also illustrated. This is simply a
copper plane under the body extent of the
package, including metal routed under terminals
1, 10, 11, and 20.
Figure 29. PWP Package Land Pattern
Location of Exposed
Thermal Pad on
PWP Package
Minimum Recommended
Heat-Sink Area
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS75225QPWP 功能描述:低壓差穩(wěn)壓器 - LDO Fast-Tran-Resp 2-A RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
TPS75225QPWPG4 功能描述:低壓差穩(wěn)壓器 - LDO Fast-Tran-Resp 2-A RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
TPS75225QPWPR 功能描述:低壓差穩(wěn)壓器 - LDO Fast-Tran-Resp 2-A RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
TPS75225QPWPREP 功能描述:低壓差穩(wěn)壓器 - LDO Mil Enh Fast Trans Resp Vltg Regs RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
TPS75225QPWPRG4 功能描述:低壓差穩(wěn)壓器 - LDO Fast-Tran-Resp 2-A RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
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