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MAX15026CETD+W

更新时间： 2024-09-26 21:15:55
品牌 Logo 应用领域
美信 - MAXIM 开关
页数 文件大小 规格书
23页 409K
描述
Switching Controller,

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中文翻译

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MAX15026CETD+W 技术参数

生命周期：Active包装说明：,
Reach Compliance Code：unknown风险等级：5.71
模拟集成电路 - 其他类型：SWITCHING CONTROLLERBase Number Matches：1

MAX15026CETD+W 数据手册

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EVALUATION KIT AVAILABLE  
MAX15026  
Low-Cost, Small, 4.5V to 28V Wide Operating  
Range, DC-DC Synchronous Buck Controller  
General Description  
Features  
o 4.5V to 28V or 5V 1ꢀ0 ꢁnpꢂt ꢃꢂpply ꢄange  
The MAX15026 synchronous step-down controller oper-  
ates from a 4.5V to 28V input voltage range and gener-  
ates an adjustable output voltage from 85% of the input  
voltage down to 0.6V while supporting loads up to 25A.  
The device allows monotonic startup into a prebiased  
bus without discharging the output and features adap-  
tive internal digital soft-start.  
o ꢀ.6V to (ꢀ.85 x V ) Adjꢂstable Oꢂtpꢂt  
o Adjꢂstable 2ꢀꢀkHz to 2MHz ꢃwitching Freqꢂency  
o Ability to ꢃtart into a Prebiased Load  
o Lossless, Cycle-by-Cycle Valley Mode Cꢂrrent  
Limit with Adjꢂstable, Temperatꢂre-Compensated  
Threshold  
ꢁN  
o ꢃink-Mode Cꢂrrent-Limit Protection  
o Adaptive ꢁnternal Digital ꢃoft-ꢃtart  
The MAX15026 offers the ability to adjust the switching  
frequency from 200kHz to 2MHz with an external resis-  
tor. The MAX15026’s adaptive synchronous rectification  
eliminates the need for an external freewheeling  
Schottky diode. The device also utilizes the external  
low-side MOSFET’s on-resistance as a current-sense  
element, eliminating the need for a current-sense resis-  
tor. This protects the DC-DC components from damage  
during output overloaded conditions or output short-  
circuit faults without requiring a current-sense resistor.  
Hiccup-mode current limit reduces power dissipation  
during short-circuit conditions. The MAX15026 includes  
a power-good output and an enable input with precise  
turn-on/turn-off threshold, which can be used for input  
supply monitoring and for power sequencing.  
o
10 Accꢂrate Voltage ꢄeference  
o ꢁnternal Boost Diode  
o Adaptive ꢃynchronoꢂs ꢄectification Eliminates  
External Freewheeling ꢃchottky Diode  
o Hiccꢂp-Mode ꢃhort-Circꢂit Protection  
o Thermal ꢃhꢂtdown  
o Power-Good Oꢂtpꢂt and Enable ꢁnpꢂt for Power  
ꢃeqꢂencing  
o
50 Accꢂrate Enable ꢁnpꢂt Threshold  
o AEC-Q1ꢀꢀ Qꢂalified (MAX15ꢀ26B)  
Ordering Information  
PAꢄT  
TEMP ꢄANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
PꢁN-PACKAGE  
14 TDFN-EP*  
14 TDFN-EP*  
14 TDFN-EP*  
14 TDFN-EP*  
14 TDFN-EP*  
14 TDFN-EP*  
Additional protection features include sink-mode cur-  
rent limit and thermal shutdown.  
MAX15026BETD+  
MAX15026BETD/V+T  
MAX15026CETD+  
MAX15026BATD+  
MAX15026CATD+  
MAX15026DATD+  
Sink-mode current limit prevents reverse inductor cur-  
rent from reaching dangerous levels when the device is  
sinking current from the output.  
The MAX15026 is available in a space-saving and ther-  
mally enhanced 3mm x 3mm, 14-pin TDFN-EP pack-  
age. The MAX15026 operates over the extended -40°C  
to +85°C and automotive -40°C to +125°C temperature  
ranges.  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
*EP = Exposed pad. T = Tape and reel.  
/V denotes an automotive qualified part.  
MAX15026D recommended for new designs.  
The MAX15026C is designed to provide additional mar-  
gin for break-before-make times.  
Pin Configuration  
The MAX15026B/MAX15026C provide a soft-stop  
feature to ramp down the output voltage at turn-off. The  
soft-stop function is disabled in the MAX15026D.  
TOP VIEW  
V
IN  
1
2
3
4
5
6
7
14 DH  
13 LX  
+
Applications  
CC  
Set-Top Boxes  
PGOOD  
EN  
BST  
DL  
12  
11  
10  
9
LCD TV Secondary Supplies  
Switches/Routers  
MAX15026  
LIM  
DRV  
GND  
RT  
Power Modules  
COMP  
FB  
*EP  
DSP Power Supplies  
Points-of-Load Regulators  
8
TDFN  
(3mm x 3mm)  
*EP = EXPOSED PAD.  
For pricing, delivery, and ordering information, please contact Maxim Direct  
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.  
19-4108; Rev 5; 11/12  
1234567...23

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