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LM60440DRPKR PDF预览

LM60440DRPKR

更新时间： 2024-11-25 11:08:03
品牌 Logo 应用领域
德州仪器 - TI 开关转换器
页数 文件大小 规格书
38页 1812K
描述
采用增强型 EMI QFN 封装、具有可湿性侧面和外部焊盘的 36V、4A 同步转换器 | RPK | 13 | -40 to 150

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LM60440DRPKR 技术参数

生命周期：Preview包装说明：,
Reach Compliance Code：compliant风险等级：5.77
其他特性：PFM CONROL ALSO POSSIBLE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：36 V最小输入电压：3.8 V
标称输入电压：12 VJESD-30 代码：R-XBCC-N13
功能数量：1端子数量：13
最高工作温度：150 °C最低工作温度：-40 °C
最大输出电流：4 A最大输出电压：24 V
最小输出电压：1 V封装主体材料：UNSPECIFIED
封装形状：RECTANGULAR筛选级别：AEC-Q100
表面贴装：YES切换器配置：BUCK
最大切换频率：1150 kHz温度等级：OTHER
端子形式：NO LEAD端子位置：BOTTOM
Base Number Matches：1

LM60440DRPKR 数据手册

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Support &  
Community  
Product  
Folder  
Order  
Now  
Tools &  
Software  
Technical  
Documents  
LM60440, LM60430  
SNVSBN5A –FEBRUARY 2020–REVISED JUNE 2020  
LM604x0 3.8-V to 36-V, 3-A, and 4-A Ultra-Small Synchronous Step-Down Converter  
1 Features  
3 Description  
The LM604x0 regulator is an easy-to-use,  
synchronous, step-down DC/DC converter that  
delivers best-in-class efficiency for rugged industrial  
applications. The LM60430 drives up to 3-A of load  
current, and the LM60440 is industry's smallest 4A  
step-down converter.  
1
•
Functional Safety-Capable  
–
Documentation available to aid functional  
safety system design  
•
•
Low EMI and switching noise  
–
–
Meets CISPR22 class 5 standard  
The LM604x0 is available in an ultra-miniature WQFN  
package with wettable flanks and a standard QFN  
pin-out with a thermal pad to enhance thermal  
performance. This enhanced QFN package features  
extremely small parasitic inductance and resistance,  
enabling very high efficiency while minimizing switch  
node ringing and dramatically reducing EMI.  
Enhanced QFN package minimizes parasitic  
inductance and switch node ringing  
Configured for rugged industrial applications  
–
Standard QFN footprint: single large thermal  
pad and all pins accessible from perimeter  
–
Pin compatible variants:  
–
–
LM60440 (36 V, 4 A)  
LM60430 (36 V, 3 A)  
The LM604x0 uses peak-current-mode control to  
automatically fold back frequency at light load to  
ensure exceptional efficiency across the entire load  
range. The low power dissipation paired with a  
thermally optimized QFN package enables a power  
dense solution size. In addition the device requires  
few external components and has a pinout designed  
for simple PCB layout. The small solution size and  
feature set of the LM604x0 are designed to simplify  
implementation for a wide range of end equipment.  
–
–
–
Junction temperature range –40°C to +150°C  
Frequency: 400 kHz, 1 MHz  
Output voltage range: 1 V to 24 V  
•
•
High efficiency power conversion at all loads  
–
–
–
Peak efficiency > 95%  
90% PFM efficiency at 10-mA, 12 VIN, 5 VOUT  
Low operating quiescent current of 25 µA  
This device is also available in an AEC-Q100-  
qualified version.  
Create a custom design using the LM60440 with  
the WEBENCH® Power Designer  
Device Information(1)  
PART NUMBER  
PACKAGE  
BODY SIZE (NOM)  
2 Applications  
LM60440  
WQFN-13  
3.00 mm × 2.00 mm  
•
•
•
Industrial PC and CPU (PLC controller)  
Servo drive and AC drive control module  
Medical and instrumentation applications  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
space  
space  
Efficiency versus Output Current  
VOUT = 5 V, 400 kHz  
Simplified Schematic  
BOOT  
100  
90  
VIN  
CIN  
VIN  
EN  
CBOOT  
L1  
VOUT  
COUT  
SW  
PGND  
VCC  
80  
PG  
FB  
70  
RFBT  
CVCC  
60  
8V  
12V  
RFBB  
AGND  
24V  
50  
0
0.5  
1
1.5  
2
2.5  
Output Current (A)  
3
3.5  
4
4.5  
Eff_  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
 
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