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MAX5090CATE/V+ PDF预览

MAX5090CATE/V+

更新时间: 2024-11-19 20:38:59
品牌 Logo 应用领域
美信 - MAXIM 开关
页数 文件大小 规格书
17页 2064K
描述
Switching Controller

MAX5090CATE/V+ 技术参数

是否Rohs认证: 符合生命周期:Obsolete
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.75
模拟集成电路 - 其他类型:SWITCHING CONTROLLER峰值回流温度(摄氏度):NOT SPECIFIED
处于峰值回流温度下的最长时间:NOT SPECIFIEDBase Number Matches:1

MAX5090CATE/V+ 数据手册

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EVALUATION KIT AVAILABLE  
MAX5090A/B/C  
2A, 76V, High-Efficiency MAXPower  
Step-Down DC-DC Converters  
General Description  
Features  
Wide Input Voltage Range: 6.5V to 76V  
The MAX5090A/B/C easy-to-use, high-efficiency, high-  
voltage step-down DC-DC converters operate from an input  
voltage up to 76V, and consume only 310µA quiescent  
current at no load. This pulse-width-modulated (PWM)  
converter operates at a fixed 127kHz switching frequency at  
heavy loads, and automatically switches to pulse-skipping  
mode to provide low quiescent current and high efficiency  
at light loads. The MAX5090 includes internal frequency  
compensation simplifying circuit implementation. The  
device can also be synchronized with external system clock  
frequency in a noise-sensitive application. The MAX5090  
uses an internal low on-resistance and a high-voltage DMOS  
transistor to obtain high efficiency and reduce overall system  
cost. This device includes undervoltage lockout, cycle-  
by-cycle current limit, hiccup-mode output short-circuit  
protection, and overtemperature shutdown.  
Fixed (3.3V, 5V) and Adjustable (1.265V to 11V)  
Output-Voltage Versions  
2A Output Current  
Efficiency Up to 92%  
● Internal 0.26Ω High-Side DMOS FET  
310µA Quiescent Current at No Load  
19µA Shutdown Current  
Internal Frequency Compensation  
Fixed 127kHz Switching Frequency  
External Frequency Synchronization  
Thermal Shutdown and Short-Circuit Current Limit  
-40°C to +125°C Automotive Temperature Range  
6-Pin (5mm x 5mm) Thin QFN Package  
Capable of Dissipating 2.67W at +70°C  
The MAX5090 delivers up to 2A output current. External  
shutdown is included, featuring 19µA (typ) shutdown  
current. The MAX5090A/MAX5090B versions have fixed  
output voltages of 3.3V and 5V, respectively, while the  
MAX5090C features an adjustable 1.265V to 11V output  
voltage.  
Ordering Information  
OUTPUT  
VOLTAGE  
(V)  
TEMP  
PIN-  
PACKAGE  
PART  
RANGE  
The MAX5090 is available in a space-saving 16-pin  
thin QFN package (5mm x 5mm) and operates over the  
automotive temperature range (-40°C to +125°C).  
MAX5090AATE+ -40°C to +125°C 16 TQFN-EP*  
3.3  
MAX5090AATE -40°C to +125°C 16 TQFN-EP*  
MAX5090BATE+ -40°C to +125°C 16 TQFN-EP*  
MAX5090BATE -40°C to +125°C 16 TQFN-EP*  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
*EP = Exposed pad.  
3.3  
5.0  
5.0  
Applications  
Industrial  
Distributed Power  
Ordering Information continued at end of data sheet.  
Typical Operating Circuit  
Pin Configuration  
V
IN  
7.5V TO 76V  
TOP VIEW  
R
IN  
10  
12  
11  
10  
9
C
IN  
68µF  
C
BYPASS  
0.47µF  
V
OUT  
EP  
FB  
8
7
6
5
DRAIN 13  
DRAIN 14  
N.C. 15  
100µH  
5V/2A  
V
DRAIN  
IN  
LX  
SS  
ON/OFF  
MAX5090B  
C
C
BST  
0.22µF  
OUT  
100µF  
D1  
PDS5100H  
MA5090  
SYNC  
VD  
BST  
FB  
16  
N.C.  
SS  
SYNC  
SGND  
C
SS  
0.047µF  
VD  
1
2
3
4
PGND  
3.3µF  
TQFN  
19-3872; Rev 1; 9/14  

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