方案
设计
Converters | NCV890200
概览
NCV890200 是一款固定频率、单片降压开关稳压器，适合必须由高达 36V 输入电源供电的汽车、与电池连接的应用。该稳压器适用于具有低噪声和小外形要求的系统，通常汽车驾驶员信息系统有此要求。NCV890200 能够在高于敏感 AM 波段的恒定开关频率下，将典型的 4.5 V 到 18 V 汽车输入电压范围转换为低至 3.3 V 的输出，无需昂贵的滤波器并应对 EMI 干扰。NCV890200 还具有汽车电源系统需要的多种保护功能，如电流限制、短路保护和高温关断。此外，即使使用较小的电感器值和全陶瓷输出滤波电容器，高开关频率也会产生较低的输出电压纹波，从而成为节省空间的开关稳压器方案。
应用
- Audio
- Infotainment
- Safety - Vision Systems
- Instrumentation
终端产品
- Automotive
特性
- Internal N-Channel Power Switch
- Low VIN Operation Down to 4.5 V
- High VIN Operation to 36 V
- Withstands Load Dump to 40 V
- 2 MHz Free-running Switching Frequency
- Logic level Enable Input Can be Directly Tied to Battery
- 2.2 A (min) Cycle-by-Cycle Peak Current Limit
- Short Circuit Protection enhanced by Frequency Foldback
- ±1.75% Output Voltage Tolerance
- Output Voltage Adjustable Down to 0.8 V
- 1.4 Millisecond Internal Soft-Start
- Thermal Shutdown (TSD)
- Low Shutdown Current
- NCV Prefix for Automotive and Other Applications Requiring Site and Change Controls
- This is a Pb-Free Device
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产品
NCV890200PDR2G
Active
Pb
A
H
P
SOIC-8 EP
2
260
REEL
2500
Y
Step-Down
Current Mode
4.5
40
Adjustable
2
-
2000
$1.035
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