参数资料
型号: LM22671QMRE-5.0
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 稳压器
英文描述: 0.9 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8
封装: PLASTIC, PSOP-8
文件页数: 11/18页
文件大小: 419K
代理商: LM22671QMRE-5.0
Connection Diagram
30076840
8-Lead Plastic PSOP-8 Package
NS Package Number MRA08B
Ordering Information
Output Voltage
Order Number
Package Type
NSC Package Drawing
Features
ADJ
LM22671MR-ADJ
PSOP-8 Exposed Pad
MRA08B
ADJ
LM22671MRE-ADJ
ADJ
LM22671MRX-ADJ
5.0
LM22671MR-5.0
5.0
LM22671MRE-5.0
5.0
LM22671MRX-5.0
ADJ
LM22671QMR-ADJ
PSOP-8 Exposed Pad
MRA08B
AEC-Q100 Grade 1 qualified.
Automotive Grade Production
Flow*
ADJ
LM22671QMRE-ADJ
ADJ
LM22671QMRX-ADJ
5.0
LM22671QMR-5.0
5.0
LM22671QMRE-5.0
5.0
LM22671QMRX-5.0
*Automotive Grade (Q) product incorporates enhanced manufacturing and support processes for the automotive market, including defect detection methodologies.
Reliability qualification is compliant with the requirements and temperature grades defined in the AEC-Q100 standard. Automotive grade products are identified
with the letter Q. For more information go to http://www.national.com/automotive.
Pin Descriptions
Pin
Name
Description
Application Information
1
BOOT
Bootstrap input
Provides the gate voltage for the high side NFET.
2
SS
Soft-start pin
An external capacitor and an internal 50 A current source set the time
constant for the rise of the error amplifier reference. Pin can be left floating
and internal soft-start will be default.
3
RT/SYNC Oscillator frequency adjust pin or
frequency synchronization
A resistor connected from this pin to GND adjusts the oscillator frequency.
This pin can also accept an input for synchronization from an external
clock. Pin can be left floating and internal setting will be default to 500 kHz.
4
FB
Feedback pin
Inverting input to the internal voltage error amplifier.
5
EN
Precision enable pin
When pulled low regulator turns off.
6
GND
System ground
Provide good capacitive decoupling between VIN and this pin.
7
VIN
Source input voltage
Input to the regulator. Operates from 4.5V to 42V.
8
SW
Switch pin
Attaches to the switch node.
www.national.com
2
LM22671/LM22671Q
相关PDF资料
PDF描述
LM22671QMR-5.0 0.9 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8
LM22675QMRX-ADJ 1.8 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8
LM22675QMRE-ADJ 1.8 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8
LM22675QMR-5.0 1.8 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8
LM22676QMRX-5.0 5.5 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8
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LM22671QMRX-5.0 制造商:NSC 制造商全称:National Semiconductor 功能描述:500 mA SIMPLE SWITCHER?, Step-Down Voltage Regulator with Features
LM22671QMRX-5.0/NOPB 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
LM22671QMRX-ADJ 制造商:NSC 制造商全称:National Semiconductor 功能描述:500 mA SIMPLE SWITCHER?, Step-Down Voltage Regulator with Features