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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)： | 1/24頁 |
| 文件大?。?/td> | 443K |
| 代理商： | MAX1714 |
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
General Description
The MAX1714 pulse-width modulation (PWM) controller
provides the high efficiency, excellent transient
response, and high DC output accuracy needed for
stepping down high-voltage batteries to generate low-
voltage CPU core or chip-set/RAM supplies in notebook
computers.
Maxim’s proprietary Quick-PWM quick-response,
constant-on-time PWM control scheme handles wide
input/output voltage ratios with ease and provides
100ns “instant-on” response to load transients while
maintaining a relatively constant switching frequency.
The MAX1714 achieves high efficiency at a reduced
cost by eliminating the current-sense resistor found in
traditional current-mode PWMs. Efficiency is further
enhanced by an ability to drive very large synchronous-
rectifier MOSFETs.
Single-stage buck conversion allows these devices to
directly step down high-voltage batteries for the highest
possible efficiency. Alternatively, two-stage conversion
(stepping down the +5V system supply instead of the
battery) at a higher switching frequency allows the mini-
mum possible physical size.
The MAX1714 is intended for CPU core, chipset,
DRAM, or other low-voltage supplies as low as 1V. The
MAX1714A is available in a 20-pin QSOP package and
includes overvoltage protection. The MAX1714B is
available in a 16-pin QSOP package with no overvolt-
age protection. For applications requiring VID compli-
ance or DAC control of output voltage, refer to the
MAX1710/MAX1711 data sheet. For a dual output ver-
sion, refer to the MAX1715
data sheet.
Applications
Notebook Computers
CPU Core Supply
Chipset/RAM Supply as Low as 1V
1.8V and 2.5V I/O Supply
Features
o
Ultra-High Efficiency
o
No Current-Sense Resistor (Lossless I
LIMIT
)
o
Quick-PWM with 100ns Load-Step Response
o
1% V
OUT
Accuracy Over Line and Load
o
2.5V/3.3V Fixed or 1V to 5.5V Adjustable Output
Range
o
2V to 28V Battery Input Range
o
200/300/450/600kHz Switching Frequency
o
Overvoltage Protection (MAX1714A)
o
Undervoltage Protection
o
1.7ms Digital Soft-Start
o
Drives Large Synchronous-Rectifier FETs
o
2V ±1% Reference Output
o
Power-Good Indicator
M
High-Speed Step-Down Controller
for Notebook Computers
________________________________________________________________
Maxim Integrated Products
1
19-1536; Rev 1; 12/99
EVALUATION KIT MANUALS
Pin Configurations appear at end of data sheet.
Quick-PWM is a trademark of Maxim Integrated Products.
Future product—contact factory for availability.
-40°C to +85°C
-40°C to +85°C
PART
MAX1714AEEP
MAX1714BEEE
TEMP. RANGE
PIN-PACKAGE
20 QSOP
16 QSOP
Ordering Information
FOLLOW DATA SHEET
V
CC
SHDN
+5V INPUT
BATTERY
4.5V TO 28V
OUTPUT
1.25V TO 2V
ILIM
DL
LX
V+
BST
DH
PGND
(GND)
OUT
SKIP
V
DD
MAX1714
REF
PGOOD
FB
AGND
(GND)
( ) ARE FOR THE MAX1714B ONLY.
Minimal Operating Circuit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1714AEEP | High-Speed Step-Down Controller for Notebook Computers |
| MAX1714BEEE | High-Speed Step-Down Controller for Notebook Computers |
| MAX1715 | Ultra-High Efficiency, Dual Step-Down Controller for Notebook Computers |
| MAX1715EEI | Ultra-High Efficiency, Dual Step-Down Controller for Notebook Computers |
| MAX1717 | Replaced by TMS320VC5506 : Digital Signal Processors 132-BQFP |
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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