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參數(shù)資料
| 型號： | PIP201-12M-3 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | DC-to-DC converter powertrain |
| 中文描述： | 200 A SWITCHING REGULATOR, PQCC68 |
| 封裝： | 10 X 10 MM, 0.85 MM HEIGHT, PLASTIC, SOT-687-1, HVQFN-68 |
| 文件頁數(shù)： | 12/20頁 |
| 文件大小： | 345K |
| 代理商： | PIP201-12M-3 |
Philips Semiconductors
PIP201-12M-3
DC-to-DC converter powertrain
Product data
Rev. 03 — 19 November 2003
12 of 20
9397 750 11942
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
printed-circuit board is approximately 5 K/W. In order to take full advantage of the low
thermal resistance of this package, the printed-circuit board must be designed so that
heat is conducted away efficiently from the package. This can be achieved by
maximizing the area of copper around each pad, and by incorporating thermal vias to
conduct the heat to inner and/or bottom layers of the printed-circuit board.
An example of a thermal via pattern is shown in
Figure 13
. In a typical application,
with no forced air cooling, the use of thermal vias typically reduces the thermal
resistance from 25 K/W to 20 K/W. The additional use of a small fan can reduce this
further to approximately 15 K/W.
The thermal resistance of a particular design can be measured by passing a known
current through the source-drain diode of the lower MOSFET. The direction of current
flow is into V
SSO
and out of V
O
. The volt drop between V
SSO
and V
O
is then measured
and used to calculate the power dissipation in the PIP201-12M. The case
temperature of the PIP201-12M can be measured using an infra-red thermometer.
The thermal resistance can then be calculated using the following equation:
T
T
–
I
V
F
×
(3)
where T
case
is the measured case temperature (
°
C), T
amb
is the ambient
temperature (
°
C), I is the MOSFET current (A), and V
F
is the voltage drop between
V
SSO
and V
DDO
(V).
Where more than one phase is used, for example the circuit of
Figure 11
, the thermal
resistance of each PIP201-12M should be measured with current flowing in all
phases.
12. Test information
Figure 14
shows the test circuit used to measure power loss in the PIP201-12M. The
output voltage is measured using an averaging circuit. This eliminates losses in the
output inductor and the PCB tracks. The calculated power loss, using this method,
All holes 0.5 mm diameter with 1 mm spacing.
Fig 13. Printed-circuit board thermal via pattern.
03ag36
PAD1
PAD2
PAD3
R
th j
pcb
–
(
)
------------------------------
K W
(
)
=
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIP201-12M-3,518 | 功能描述:IC REG BUCK SYNC ADJ 20A 68HVQFN RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:20 系列:SIMPLE SWITCHER® 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:12V 輸入電壓:4 V ~ 60 V PWM 型:電壓模式 頻率 - 開關(guān):52kHz 電流 - 輸出:1A 同步整流器:無 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 包裝:管件 供應(yīng)商設(shè)備封裝:16-DIP 其它名稱:*LM2575HVN-12LM2575HVN-12 |
| PIP202-12M | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DC to DC converter powertrain |
| PIP202-12M-2 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DC-to-DC converter powertrain |
| PIP202-12M-2 /T3 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 TAPE7 MOSFET RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| PIP202-12M-2,518 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 TAPE7 MOSFET RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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