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NCV891130PD33R2G PDF预览

NCV891130PD33R2G

更新时间： 2024-10-27 11:12:11
品牌 Logo 应用领域
安森美 - ONSEMI 稳压器
页数 文件大小 规格书
15页 777K
描述
1.2 A，2 MHz 低 Iq 双模式步降稳压器，用于汽车

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NCV891130PD33R2G 数据手册

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NCV891130  
Step-Down Regulator -  
Automotive, Low-Iq,  
Dual-Mode  
1.2 A, 2 MHz  
www.onsemi.com  
The NCV891130 is a Dual Mode regulator intended for Automotive,  
battery−connected applications that must operate with up to a 45 V  
input supply. Depending on the output load, it operates either as a PWM  
Buck Converter or as a Low Drop−Out Linear Regulator, and is suitable  
for systems with low noise and Low Quiescent Current requirements  
often encountered in automotive driver information systems. A reset  
pin (with fixed delay) simplifies interfacing with a microcontroller.  
The NCV891130 also provides several protection features expected  
in automotive power supply systems such as current limit, short circuit  
protection, and thermal shutdown. In addition, the high switching  
frequency produces low output voltage ripple even when using small  
inductor values and an all−ceramic output filter capacitor – forming a  
space−efficient switching regulator solution.  
8
1
SOIC−8  
EXPOSED PAD  
CASE 751AC  
MARKING DIAGRAM  
8
891130XX  
ALYW  
G
Features  
• 30 mA Iq in Light Load Condition  
• 1.2 A Maximum Output Current in PWM Mode  
• Internal N−channel Power Switch  
1
With XX = 33 for 3.3 V Output  
= 40 for 4.0 V Output  
= 50 for 5.0 V Output  
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
= Pb−Free Device  
• V Operating Range 3.7 V to 36 V  
IN  
A
L
Y
W
G
• Withstands Load Dump to 45 V  
• Logic Level Enable Pin can be Tied to Battery  
• Fixed Output Voltage of 5.0 V, 4.0 V or 3.3 V  
• 2 MHz Free−running Switching Frequency  
•
2 % Output Voltage Accuracy  
PIN CONNECTIONS  
• NCV Prefix for Automotive Requiring Site and Control Changes  
• These Devices are Pb−Free and are RoHS Compliant  
1
8
7
6
5
VIN  
SW  
Typical Applications  
• Audio  
• Infotainment  
• Instrumentation  
• Safety−Vision Systems  
2
3
4
DRV  
BST  
VOUT  
EN  
RSTB  
GND  
(Top View)  
CDRV  
DBST  
NCV891130  
L1  
VOUT  
COUT  
VIN  
VIN  
SW  
BST  
ORDERING INFORMATION  
See detailed ordering and shipping information on page 13 of  
this data sheet.  
CBST  
CIN  
RESET  
DFW  
DRV  
RSTB  
GND  
VOUT  
EN  
EN  
Figure 1. Typical Application  
© Semiconductor Components Industries, LLC, 2016  
1
Publication Order Number:  
August, 2019 − Rev. 1  
NCV891130/D  
1234567...15

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