參數(shù)資料
型號(hào)： MAX1714AEEP
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： High-Speed Step-Down Controller for Notebook Computers
中文描述： SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO20
封裝： 0.150 INCH, 0.025 INCH PITCH, MO-137AB, QSOP-20
文件頁(yè)數(shù)： 1/24頁(yè)
文件大小： 443K
代理商： MAX1714AEEP
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
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
MAX1717EEG Replaced by TMS320VC5506 : Digital Signal Processors 100-LQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1714AEEP+ 功能描述:電流型 PWM 控制器 Step-Down Controller for Notebook RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX1714AEEP+T 功能描述:電流型 PWM 控制器 Step-Down Controller for Notebook RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX1714AEEP-T 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX1714AEEP-TG068 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX1714AEVKIT 功能描述:電流型 PWM 控制器 Evaluation Kit for the MAX1714A RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
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