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參數(shù)資料
| 型號： | MAX1533AETJ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers |
| 中文描述： | 3.3 A DUAL SWITCHING CONTROLLER, 575 kHz SWITCHING FREQ-MAX, QCC32 |
| 封裝： | 5 X 5 MM, 0.80 MM HEIGHT, MO-220WHHD-2, TQFN-32 |
| 文件頁數(shù)： | 30/38頁 |
| 文件大小： | 1427K |
| 代理商： | MAX1533AETJ |
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M
High-Efficiency, 5x Output, Main Power-Supply
Controllers for Notebook Computers
30
______________________________________________________________________________________
9a. This configuration constantly monitors the inductor
current, allowing accurate current-limit protection.
Alternatively, high-power applications that do not
require highly accurate current-limit protection may
reduce the overall power dissipation by connecting a
series RC circuit across the inductor (Figure 9b) with an
equivalent time constant:
where R
L
is the inductor’s series DC resistance. In this
configuration, the current-sense resistance equals the
inductor’s DC resistance (R
SENSE
= R
L
). Use the worst-
case inductance and R
L
values provided by the induc-
tor manufacturer, adding some margin for the
inductance drop over temperature and load.
Output Capacitor Selection
The output filter capacitor must have low enough equiv-
alent series resistance (ESR) to meet output ripple and
load-transient requirements, yet have high enough ESR
to satisfy stability requirements. The output capaci-
tance must be high enough to absorb the inductor
L
R
C
R
L
EQ
EQ
×
=
Figure 9. Current-Sense Configurations
MAX1533A
MAX1537A
C
OUT
INPUT (V
IN
)
INDUCTOR
C
IN
b) LOSSLESS INDUCTOR SENSING
CSL_
CSH_
GND
DL_
DH_
LX_
C
EQ
R
EQ
MAX1533A
MAX1537A
C
OUT
INPUT (V
IN
)
C
IN
N
H
N
L
N
H
N
L
L
D
L
D
L
a) OUTPUT SERIES RESISTOR SENSING
GND
DL_
DH_
LX_
CSL_
CSH_
R
SENSE
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1533AETJ+ | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 PS Controllers for for Notebooks RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| MAX1533AETJ+T | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 PS Controllers for for Notebooks RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| MAX1533ETJ | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| MAX1533ETJ+ | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 PS Controllers for for Notebooks RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| MAX1533ETJ+T | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 PS Controllers for for Notebooks RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
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