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LM536253QRNLRQ1 PDF预览

LM536253QRNLRQ1

更新时间: 2023-06-19 15:36:23
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
59页 3112K
描述
2.5A、36V 同步、2.1MHz、汽车类降压直流/直流转换器 | RNL | 22 | -40 to 150

LM536253QRNLRQ1 数据手册

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LM53625-Q1, LM53635-Q1  
SNVSAA7B – DECEMBER 2015 – REVISED JULY 2021  
LM53625/35-Q1, 2.5-A or 3.5-A, 36-V Synchronous, 2.1-MHz, Step-Down DC-DC  
Converter  
1 Features  
3 Description  
AEC-Q100 automotive qualified:  
The LM53625-Q1/LM53635-Q1 synchronous buck  
regulator is optimized for automotive applications,  
providing an output voltage of 5 V, 3.3 V, or  
an adjustable output. Advanced high-speed circuitry  
allows the LM53625-Q1/LM53635-Q1 to regulate from  
an input of 18 V to an output of 3.3 V at a fixed  
frequency of 2.1 MHz. Innovative architecture allows  
this device to regulate a 3.3-V output from an input  
voltage of only 3.55 V. All aspects of the LM53625-  
Q1/LM53635-Q1 are optimized for automotive and  
performance-driven industrial customers. An input  
voltage range up to 36 V, with transient tolerance  
up to 42 V, eases input surge protection design.  
The automotive-qualified Hotrod QFN package with  
wettable flanks reduces parasitic inductance and  
resistance while increasing efficiency, minimizing  
switch node ringing, and dramatically lowering  
electromagnetic interference (EMI). An open-drain  
reset output, with built-in filtering and delay, provides  
a true indication of system status. This feature  
negates the requirement for an additional supervisory  
component, saving cost and board space. Seamless  
transition between PWM and PFM modes and  
low quiescent current (only 15 µA for the 3.3 V  
option) ensure high efficiency and superior transient  
responses at all loads.  
– Device temperature grade 1: –40°C to +125°C  
ambient operating temperature range  
– Device HBM classification level 2  
– Device CDM classification level C6  
–40°C to +150°C junction temperature range  
15-µA quiescent urrent at no load (typical) with  
3.3-V output  
5.0-mm × 4.0-mm VQFN package with or without  
wettable flanks and 0.6-mm VIN spacing  
Low EMI and switch noise  
Spread spectrum option  
External frequency synchronization  
RESET output with internal filter and 3-ms release  
timer  
Pin-selectable forced PWM mode  
Built-in compensation, soft start, current limit,  
thermal shutdown, and UVLO  
0.6-V dropout at 3.5 A at 105°C TA  
±1% output voltage tolerance (–40°C to 125°C TJ)  
Available with fixed 5-V, 3.3-V or adjustable output  
2 Applications  
Telematics  
Head unit  
Instrumentation cluster  
Battery-powered applications  
Device Information  
DEVICE NAME  
LM53625-Q1  
PACKAGE(1)  
BODY SIZE  
VQFN-HR (22)  
5.00 mm × 4.00 mm  
LM53635-Q1  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
Typical Automotive Layout (22 mm x 12.5 mm)  
Typical Application Circuit  
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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