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MP4350DQ-Z PDF预览

MP4350DQ-Z

更新时间: 2024-01-11 10:16:29
品牌 Logo 应用领域
芯源 - MPS 开关
页数 文件大小 规格书
14页 449K
描述
Switching Regulator, Current-mode, 3.5A, 4800kHz Switching Freq-Max, 3 X 3 MM, MO-229VEED-5, QFN-10

MP4350DQ-Z 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Not Recommended零件包装代码:SON
包装说明:HVSON,针数:10
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.18
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:20 V
最小输入电压:4.5 V标称输入电压:12 V
JESD-30 代码:S-XDSO-N10长度:3 mm
功能数量:1端子数量:10
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:3.5 A封装主体材料:UNSPECIFIED
封装代码:HVSON封装形状:SQUARE
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:1 mm
表面贴装:YES切换器配置:BUCK
最大切换频率:4800 kHz温度等级:INDUSTRIAL
端子形式:NO LEAD端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3 mmBase Number Matches:1

MP4350DQ-Z 数据手册

 浏览型号MP4350DQ-Z的Datasheet PDF文件第1页浏览型号MP4350DQ-Z的Datasheet PDF文件第2页浏览型号MP4350DQ-Z的Datasheet PDF文件第4页浏览型号MP4350DQ-Z的Datasheet PDF文件第5页浏览型号MP4350DQ-Z的Datasheet PDF文件第6页浏览型号MP4350DQ-Z的Datasheet PDF文件第7页 
MP4350 – 2.5A, 4MHz, 20V STEP-DOWN CONVERTER  
PIN FUNCTIONS  
Pin # Name Description  
Switch Node. This is the output from the high-side switch. A low forward drop Schottky diode to  
ground is required. The diode must be close to the SW pins to reduce switching spikes.  
Enable Input. Pulling this pin below the specified threshold shuts the chip down. Pulling it up  
above the specified threshold or leaving it floating enables the chip.  
Compensation. This node is the output of the error amplifier. Control loop frequency  
compensation is applied to this pin.  
Feedback. This is the input to the error amplifier. An external resistive divider connected  
between the output and GND which scales down VOUT equal to the internal +0.8V reference.  
Ground. It should be connected as close as possible to the output capacitor to shorten the high  
current switch paths.  
1, 2  
3
SW  
EN  
4
COMP  
FB  
5
6
GND  
FREQ  
Switching Frequency Program Input. Connect a resistor from this pin to ground to set the  
switching frequency.  
7
Input Supply. This supplies power to all the internal control circuitry, including the bootstrap  
regulator and the high-side switch. A decoupling capacitor to ground must be placed close to  
this pin to minimize switching spikes.  
Bootstrap. This is the positive power supply for the internal floating high-side MOSFET driver.  
Connect a bypass capacitor between this pin and SW pin.  
8, 9  
10  
VIN  
BST  
TYPICAL PERFORMANCE CHARACTERISTICS  
VIN = 12V, C1 = 10µF, C2 = 22µF, L = 10µH and TA = +25°C, unless otherwise noted.  
Efficiency vs  
Load Current  
Efficiency vs  
Load Current  
Oscillating Frequency  
vs Rfreq  
100  
90  
80  
70  
60  
50  
40  
100  
90  
80  
70  
60  
50  
40  
4000  
3500  
3000  
2500  
2000  
1500  
1000  
500  
V
=5V  
V
=12V  
IN  
IN  
V
=12V  
IN  
V
=2.5V  
V
=5V  
OUT  
2.0  
LOAD CURRENT (A)  
OUT  
2.0  
LOAD CURRENT (A)  
0
0
0.5  
1.0  
1.5  
2.5  
0
0.5  
1.0  
1.5  
2.5  
10  
100  
1000  
Steady State  
Steady State  
Steady State  
I
= 2A  
I
= 0.1A  
I
= 1A  
OUT  
OUT  
OUT  
V
V
V
OUT  
AC Coupled  
20mV/div.  
OUT  
OUT  
AC Coupled  
10mV/div.  
AC Coupled  
10mV/div.  
V
V
SW  
SW  
V
SW  
10V/div.  
10V/div.  
10V/div.  
I
L
1A/div.  
I
I
L
L
1A/div.  
1A/div.  
MP4350 Rev. 1.0  
5/26/2008  
www.MonolithicPower.com  
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.  
© 2008 MPS. All Rights Reserved.  
3

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