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參數(shù)資料
| 型號(hào)： | MAX1714 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | High-Speed Step-Down Controller for Notebook Computers |
| 中文描述： | 高速、降壓型控制器，用于筆記本電腦 |
| 文件頁數(shù)： | 9/24頁 |
| 文件大?。?/td> | 443K |
| 代理商： | MAX1714 |
M
High-Speed Step-Down Controller
for Notebook Computers
_______________________________________________________________________________________
9
V
CC
V
IN
4.5V TO 28V
+5V
BIAS SUPPLY
C2
( ) = ARE FOR THE MAX1714B ONLY.
NOTE: IN THE MAX 1714B, AGND AND PGND ARE INTERNALLY CONNECTED TO THE GND PIN.
POWER-GOOD
INDICATOR
L1
V
OUT
SHDN
V+
D2
CMPSH-3
C6
3.3
μ
F
C7
0.1
μ
F
C4
0.22
μ
F
Q1
D1
R2
100k
Q2
C5
4.7
μ
F
R1
20
C1
SKIP
ON/OFF
CONTROL
LOW-NOISE
CONTROL
DL
LX
BST
DH
PGND
(GND)
OUT
FB
PGOOD
V
DD
MAX1714
+5V
+5V
TON
REF
AGND
(GND)
ILIM
Figure 1. Standard Application Circuit
Standard Application Circuit
The standard application circuit (Figure 1) generates a
low-voltage rail for general-purpose use in a notebook
computer (I/O supply, fixed CPU core supply, DRAM
supply). This DC-DC converter steps down a battery or
AC adapter voltage to voltages from 1.0V to 5.5V with
high efficiency and accuracy.
See Table 1 for a list of component selections for com-
mon applications. Table 2 lists component manufacturers.
Detailed Description
The MAX1714 buck controller is targeted for low-voltage
power supplies for notebook computers. Maxim‘s propri-
etary Quick-PWM pulse-width modulator in the MAX1714
is specifically designed for handling fast load steps
while maintaining a relatively constant operating fre-
quency and inductor operating point over a wide range
of input voltages. The Quick-PWM architecture circum-
vents the poor load-transient timing problems of fixed-
frequency current-mode PWMs while also avoiding the
problems caused by widely varying switching frequen-
cies in conventional constant-on-time and constant-off-
time PWM schemes.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX17140AETL+T | 制造商:Maxim Integrated Products 功能描述:DC-DC FOR TV - Tape and Reel |
| MAX17140ETL+ | 功能描述:電池管理 12Ch Battery Sensor w/SMBus Ladder RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX17140ETL+T | 功能描述:電池管理 12Ch Battery Sensor w/SMBus Ladder RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX17140EVKIT+ | 功能描述:電源管理IC開發(fā)工具 MAX17140 Eval Kit RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX17141ETG+ | 功能描述:轉(zhuǎn)換 - 電壓電平 V6 Level Shifter RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8 |
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