參數(shù)資料
型號(hào)： MAX728CCK
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： 5V/3.3V/3V 2A Step-Down, PWM, Switch-Mode DC-DC Regulators
中文描述： 3.2 A SWITCHING REGULATOR, 120 kHz SWITCHING FREQ-MAX, PZFM5
封裝： TO-220, 5 PIN
文件頁(yè)數(shù)： 1/4頁(yè)
文件大?。?/td> 39K
代理商： MAX728CCK
_______________General Desc ription
The MAX727/MAX728/MAX729 are monolithic, bipolar,
pulse-width modulation (PWM), switch-mode, step-down
DC-DC regulators. Each is rated at 2A. Very few external
components are needed for standard operation because
the power switch, oscillator, feedback, and control circuitry
are all on-chip. Employing a classic buck topology, these
regulators perform high-current step-down functions.
These regulators have excellent dynamic and transient
response characteristics, while featuring cycle-by-cycle cur-
rent limiting to protect against overcurrent faults and short-
circuit output faults. They also have a wide 8V to 40V input
range.
Each regulator is available in a 5-pin TO-220 package.
These devices have a preset 100kHz oscillator frequency
and a preset current limit of 2.6A. See the MAX724/
MAX726 data sheet for more applications information.
_______________________Applic ations
Distributed Power from High-Voltage Buses
High-Current, High-Voltage Step-Down Applications
Multiple-Output Buck Converter
M
5V /3.3V /3V 2A S tep-Down, PWM,
S witc h-Mode DC-DC Regulators
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
V
IN
V
SW
GND
V
C
SENSE
CASE IS CONNECTED TOGROUND. STANDARD PACKAGE HAS STAGGERED LEADS.
CONTACT FACTORY FOR STRAIGHT LEADS.
5-PIN TO-220
FRONT VIEW
MAX727
MAX728
MAX729
1
2
3
4
5
__________________Pin Configuration
VIN
VC
VSW
220
μ
F
GND
2.7k
0.01
μ
F
OUTPUT
5V AT 2A
SENSE
100
μ
H
MBR745
470
μ
F
INPUT
8V TO 40V
MAX727
STEP-DOWN CONVERTER
__________Typic al Operating Circ uit
19-0149; Rev 2; 9/95
___________________________Features
o
Input Range: Up to 40V
o
2A On-Chip Power Switch
o
Fixed Outputs: 5V (MAX727)
3.3V (MAX728)
3V (MAX729)
o
100kHz Switching Frequency
o
Excellent Dynamic Characteristics
o
Few External Components
o
8.5mA Quiescent Current
o
TO-220 Package
______________Ordering Information
PART
MAX727
CCK
MAX727ECK
MAX728
CCK
MAX728ECK
MAX729
CCK
MAX729ECK
-40°C to +85°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
5 TO-220
5 TO-220
5 TO-220
5 TO-220
5 TO-220
5 TO-220
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
相關(guān)PDF資料
PDF描述
MAX727ECK Octal Buffers And Line Drivers With 3-State Outputs 20-CDIP -55 to 125
MAX728ECK Octal Buffers And Line Drivers With 3-State Outputs 20-CDIP -55 to 125
MAX729CCK Octal Buffers And Line Drivers With 3-State Outputs 20-LCCC -55 to 125
MAX729ECK Octal Buffers And Line Drivers With 3-State Outputs 20-CDIP -55 to 125
MAX727 5V/3.3V/3V 2A Step-Down, PWM, Switch-Mode DC-DC Regulators(2A,5V,步降,PWM,開關(guān)型DC-DC變換器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX728CCM 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Voltage-Mode SMPS Controller
MAX728CKS 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Voltage-Mode SMPS Controller
MAX728CWE 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Voltage-Mode SMPS Controller
MAX728ECK 功能描述:直流/直流開關(guān)調(diào)節(jié)器 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MAX728ECM 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Voltage-Mode SMPS Controller
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