參數(shù)資料
型號： MAX1966-MAX1967
廠商： Maxim Integrated Products, Inc.
英文描述： Low-Cost Voltage-Mode PWM Step-Down Controllers
中文描述： 低成本電壓模式PWM降壓型控制器
文件頁數(shù)： 1/15頁
文件大?。?/td> 404K
代理商： MAX1966-MAX1967
General Description
The MAX1966/MAX1967 are voltage-mode pulse-width-
modulated (PWM), step-down DC-DC controllers that
are ideal for a variety of cost-sensitive applications.
They drive low-cost N-MOSFETs for both the high-side
switch and synchronous rectifier and require no external
Schottky power diode or current-sense resistor. Short-
circuit and current-limit protection is provided by sens-
ing the drain-to-source voltage on the low-side FET.
Both devices can supply outputs as low as 0.8V and are
well suited for DSP cores and other low-voltage logic.
The MAX1966 has an input range of 2.7V to 5.5V while
the MAX1967 has an input range of 2.7V to 28V. In
ultra-low-cost designs, the MAX1966/MAX1967 can
provide efficiency exceeding 90% and can achieve
95% efficiency with optimized component selection.
The MAX1966/MAX1967 operate at 100kHz and ac-
commodate aluminum electrolytic capacitors and pow-
dered-iron core magnetics in minimum-cost designs.
They also provide excellent performance with high-per-
formance surface-mount components. The MAX1966 is
available in a low-cost 8-pin SO package. The MAX1967
is available in a 10-pin μMAX package.
Applications
Features
o
Cost-Optimized Design
o
No Schottky Diode or Current-Sense Resistor
Required
o
>95% Efficiency
o
Low-Cost External Components
o
All N-Channel FET Design
o
2.7V to 5.5V Input Range (MAX1966)
o
2.7V to 28V Input Range (MAX1967)
o
0.8V Feedback for Low-Voltage Outputs
o
100kHz Switching Frequency Accommodates
Low-Cost Components
o
Thermal Shutdown
o
Output Current-Limit and Short-Circuit Protection
M
Low-Cost Voltage-Mode PWM
Step-Down Controllers
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
GND
DL
VIN
1
2
8
7
DH
LX
COMP/EN
FB
BST
SO
TOP VIEW
3
4
6
5
MAX1966
Pin Configurations
Ordering Information
MAX1966
V
OUT
2.7V TO
5.5V INPUT
VIN
COMP/EN
GND
BST
DH
LX
DL
FB
Typical Operating Circuit
19-2286; Rev 1; 9/03
Pin Configurations continued at end of data sheet.
Set-Top Boxes
Graphic Card Supplies
xDSL Modems and
Routers
Cable Modems and
Routers
Telecom Power Supplies
Networking Power
Supplies
Termination Supplies
PART
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 SO
10 μMAX
MAX1966
ESA
MAX1967
EUB
相關PDF資料
PDF描述
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相關代理商/技術參數(shù)
參數(shù)描述
MAX1967EUB 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX1967EUB+ 功能描述:電壓模式 PWM 控制器 Voltage-Mode PWM Step-Down RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX1967EUB+T 功能描述:電壓模式 PWM 控制器 Voltage-Mode PWM Step-Down RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX1967EUB-T 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX19681EXW+D 制造商:Maxim Integrated Products 功能描述:12-BIT, 1.5GSPS HIGH-DYNAMIC PERFORMANCE DAC - Rail/Tube
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