参数资料
型号: LM22673MR-5.0/NOPB
厂商: National Semiconductor
文件页数: 5/27页
文件大小: 0K
描述: IC REG BUCK 5V 3A 8PSOP
产品培训模块: SIMPLE SWITCHER® Regulators
LM315x & LM2267x SIMPLE SWITCHER® and WEBENCH
标准包装: 95
系列: SIMPLE SWITCHER®
类型: 降压(降压)
输出类型: 固定
输出数: 1
输出电压: 5V
输入电压: 4.5 V ~ 42 V
PWM 型: 电压模式
频率 - 开关: 500kHz
电流 - 输出: 3A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm Width)裸露焊盘
包装: 管件
供应商设备封装: 8-PSOP-EP
配用: 551600236-001-ND - WEBENCH BUILD IT LM2267X 8-PSOP
LM22673EVAL/NOPB-ND - BOARD EVALUATION FOR LM22673
其它名称: LM22673MR-5.0
LM22673MR-5.0-ND

SNVS586N – SEPTEMBER 2008 – REVISED APRIL 2013
Typical Performance Characteristics
Unless otherwise specified the following conditions apply: Vin = 12V, T J = 25°C.
Efficiency vs I OUT and V IN
V OUT = 3.3V
Figure 3.
Normalized Switching Frequency vs Temperature
Figure 5.
Current Limit vs Temperature
Figure 4.
Feedback Bias Current vs Temperature
Figure 6.
Normalized Feedback Voltage vs Temperature
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
Normalized R DS(ON) vs Temperature
PFM Package
SO Package
0.6
–50 –25
0
25
50
75
100 125
TEMPERATURE (°C)
Figure 7.
Figure 8.
Copyright ? 2008–2013, Texas Instruments Incorporated
Product Folder Links: LM22673
5
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