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NCV97310MW33R2G

更新时间： 2024-01-15 09:06:23
品牌 Logo 应用领域
安森美 - ONSEMI /
页数 文件大小 规格书
25页 240K
描述
3 Buck Regulators

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NCV97310MW33R2G 数据手册

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NCV97310  
Automotive Battery-  
Connected Low-Iq Multi-  
Output Power Management  
Unit with 3 Buck Regulators  
www.onsemi.com  
Description  
The NCV97310 is a 3−output regulator consisting of a low−Iq  
battery−connected 3 A, 2 MHz non−synchronous switcher and two  
low−voltage 1.5 A, 2 MHz synchronous switchers; all using integrated  
power transistors.  
32  
1
The high−voltage switcher is capable of converting a 4.1 V to 18 V  
battery input to a 5 V or 3.3 V output at a constant 2 MHz switching  
frequency, delivering up to 3 A. In overvoltage conditions up to 36 V,  
the switching frequency folds back to 1 MHz; in load dump conditions  
up to 45 V the regulator shuts down.  
The output of the battery−connected buck regulator serves as the low  
voltage input for the 2 downstream synchronous switchers. Each  
downstream output is adjustable from 1.2 V to 3.3 V, with a 1.5 A  
average current limit and a constant 2 MHz switching frequency. Each  
switcher has an independent enable and reset pin, giving extra power  
management flexibility.  
QFN32  
MW SUFFIX  
CASE 488AM  
MARKING DIAGRAM  
1
NCV97310  
XX  
AWLYYWWG  
G
For low−Iq operating mode, the low−voltage switchers are disabled  
and the standby rail is supplied by a low−Iq LDO (up to 150 mA) with  
a typical Iq of 30 mA. The LDO regulator is in parallel to the  
high−voltage switcher, and is activated when the switcher is forced in  
standby mode.  
All 3 SMPS outputs use peak current mode control with internal  
slope compensation, internally−set soft−start, battery undervoltage  
lockout, battery overvoltage protection, cycle−by−cycle current  
limiting, hiccup mode short−circuit protection and thermal shutdown.  
An error flag is available for diagnostics.  
XX  
A
WL  
YY  
WW  
G
= 33 or 50  
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
= Pb−Free Package  
(Note: Microdot may be in either location)  
ORDERING INFORMATION  
See detailed ordering, marking and shipping information on  
page 24 of this data sheet.  
Features  
• 5.0 V and 3.3 V Versions Available  
• Cycle−by−cycle Current Limit Protections  
• Low Quiescent Current in Standby Mode  
• Programmable Spread Spectrum for EMI Reduction  
• Hiccup Overcurrent Protections (OCP)  
• Individual Reset Pins with Adjustable Delays  
• QFN Package with Wettable Flanks (pin edge plating)  
• NCV Prefix for Automotive and Other Applications  
Requiring Unique Site and Control Change  
Requirements; AEC−Q100 Qualified and PPAP  
Capable  
• 2 Microcontroller Enabled Low Voltage Synchronous  
Buck Converters  
• Large Conversion Ratio of 18 V to 3.3 V Battery  
Connected Switcher  
• Wide Input of 4.1 to 45 V with Undervoltage Lockout  
(UVLO)  
• Fixed Frequency Operation Adjustable from 2.0 to  
2.6 MHz  
• These Devices are Pb−Free, Halogen Free/BFR Free  
and are RoHS Compliant  
Typical Applications  
• Internal 1.5 ms Soft−starts  
• Infotainment, Body Electronics, Telematics, ECU  
© Semiconductor Components Industries, LLC, 2015  
1
Publication Order Number:  
September, 2015 − Rev. 4  
NCV97310/D  
1234567...25

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