Datasheet 搜索 > DC/DC转换器 > TI（德州仪器） > LM2575SX-ADJ/NOPB 数据手册 > LM2575SX-ADJ/NOPB 其他数据使用手册 1/28 页
￥ 7.347
LM2575SX-ADJ/NOPB 其他数据使用手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
DC/DC转换器
封装:
TO-263-6
描述:
TEXAS INSTRUMENTS LM2575SX-ADJ/NOPB 直流-直流开关降压稳压器, 可调, 4V-40V输入, 1.23V-37V输出, 1A输出, TO-263-5
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
典型应用电路图在P1P2P12
原理图在P2
封装尺寸在P24
型号编码规则在P3P4
功能描述在P1
技术参数、封装参数在P5P6P7P8
应用领域在P1P20
电气规格在P5P6P7P8P9P19
型号编号列表在P13P15
导航目录
LM2575SX-ADJ/NOPB数据手册
Page:
of 28 Go
若手册格式错乱，请下载阅览PDF原文件
April 2007
LM1575/LM2575/LM2575HV
SIMPLE SWITCHER
®
1A Step-Down Voltage Regulator
General Description
The LM2575 series of regulators are monolithic integrated
circuits that provide all the active functions for a step-down
(buck) switching regulator, capable of driving a 1A load with
excellent line and load regulation. These devices are avail-
able in fixed output voltages of 3.3V, 5V, 12V, 15V, and an
adjustable output version.
Requiring a minimum number of external components, these
regulators are simple to use and include internal frequency
compensation and a fixed-frequency oscillator.
The LM2575 series offers a high-efficiency replacement for
popular three-terminal linear regulators. It substantially re-
duces the size of the heat sink, and in many cases no heat
sink is required.
A standard series of inductors optimized for use with the
LM2575 are available from several different manufacturers.
This feature greatly simplifies the design of switch-mode pow-
er supplies.
Other features include a guaranteed ±4% tolerance on output
voltage within specified input voltages and output load con-
ditions, and ±10% on the oscillator frequency. External shut-
down is included, featuring 50 μA (typical) standby current.
The output switch includes cycle-by-cycle current limiting, as
well as thermal shutdown for full protection under fault con-
ditions.
Features
■
3.3V, 5V, 12V, 15V, and adjustable output versions
■
Adjustable version output voltage range,
1.23V to 37V (57V for HV version) ±4% max over
line and load conditions
■
Guaranteed 1A output current
■
Wide input voltage range, 40V up to 60V for HV version
■
Requires only 4 external components
■
52 kHz fixed frequency internal oscillator
■
TTL shutdown capability, low power standby mode
■
High efficiency
■
Uses readily available standard inductors
■
Thermal shutdown and current limit protection
■
P
+
Product Enhancement tested
Applications
■
Simple high-efficiency step-down (buck) regulator
■
Efficient pre-regulator for linear regulators
■
On-card switching regulators
■
Positive to negative converter (Buck-Boost)
Typical Application
(Fixed Output Voltage Versions)
1147501
Note: Pin numbers are for the TO-220 package.
SIMPLE SWITCHER
®
is a registered trademark of National Semiconductor Corporation
© 2007 National Semiconductor Corporation 11475 www.national.com
LM1575/LM2575/LM2575HV Series SIMPLE SWITCHER 1A Step-Down Voltage Regulator
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册，每天更新 5,000 多个 PDF 文件
