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參數(shù)資料
| 型號： | MAX728ECK |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Octal Buffers And Line Drivers With 3-State Outputs 20-CDIP -55 to 125 |
| 中文描述： | 3.2 A SWITCHING REGULATOR, 120 kHz SWITCHING FREQ-MAX, PZFM5 |
| 封裝： | TO-220, 5 PIN |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 39K |
| 代理商： | MAX728ECK |
_______________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PDF資料 |
PDF描述 |
|---|---|
| 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,開關型DC-DC變換器) |
| MAX728 | 5V/3.3V/3V 2A Step-Down, PWM, Switch-Mode DC-DC Regulators(2A,5V,步降,PWM,開關型DC-DC變換器) |
| MAX729 | 5V/3.3V/3V 2A Step-Down, PWM, Switch-Mode DC-DC Regulators(2A,5V,步降,PWM,開關型DC-DC變換器) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX728ECM | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Voltage-Mode SMPS Controller |
| MAX728EKS | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Voltage-Mode SMPS Controller |
| MAX728HC/D | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Voltage-Mode SMPS Controller |
| MAX728HCCK | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Voltage-Mode SMPS Controller |
| MAX728HCCM | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Voltage-Mode SMPS Controller |
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