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LM2576S-ADJ PDF预览

LM2576S-ADJ

更新时间: 2024-06-26 08:51:39
品牌 Logo 应用领域
友台半导体 - UMW /
页数 文件大小 规格书
10页 2236K
描述
DC-DC芯片

LM2576S-ADJ 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:D2PAK包装说明:TO-263, 5 PIN
针数:4Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.69Is Samacsys:N
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:40 V
最小输入电压:4 V标称输入电压:12 V
JESD-30 代码:R-PSSO-G5JESD-609代码:e0
长度:9.97 mm功能数量:1
端子数量:5最大输出电流:7.5 A
标称输出电压:1.23 V封装主体材料:PLASTIC/EPOXY
封装代码:TO-263封装等效代码:SMSIP5H,.6,67TB
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
座面最大高度:4.8 mm子类别:Switching Regulator or Controllers
最大供电电流 (Isup):12 mA表面贴装:YES
切换器配置:BUCK-BOOST最大切换频率:62 kHz
技术:BIPOLAR端子面层:TIN LEAD
端子形式:GULL WING端子节距:1.7 mm
端子位置:SINGLE处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:8.955 mmBase Number Matches:1

LM2576S-ADJ 数据手册

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R
UMW  
UMW LM2576  
Description  
The  
series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching  
LM2576  
regulator, capable of driving 3A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V,  
5V, 12V, 15V, and an adjustable output versions. Requiring a minimum number of external components, these regulators are simple to  
use and include internal frequency compensation and  
a
fixed-frequency oscillator. The LM2576  
series offers  
a
high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in some  
cases no heat sink is required. A standard series of inductors optimized for use with the LM2576 are available from several different  
manufacturers. This feature greatly simplifies the design of switch-mode power supplies. Other features include a guaranteed ± 4%  
tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External  
shutdown is included, featuring 50µA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as  
thermal shutdown for full protection under fault conditions.  
Note: TheLM2576HV is not produced yet.  
Applications  
Features  
Simple high-efficiency step-down (buck) regulator  
3.3V, 5V, 12V, 15V, and adjustable output versions  
Efficient pre-regulator for linear regulators  
On-card switching regulators  
Positive to negative converter (Buck-Boost)  
Adjustable version output voltage range  
1.23V to 37V (57V for HV version) ± 4% max over line  
and load conditions  
Guaranteed 3A output current  
Wide input voltage range, 40V up to57V for HV  
version  
Requires only 4 external components  
52 kHz fixed frequency oscillator  
TTL shutdown capability, low power standby mode  
High efficiency  
Uses readily available standard inductors  
Thermal shutdown and current limit protection  
Typical application Figure 1.(Fixed Output Voltage Versions)  
LM2576/  
LM2576HV -  
5.0  
FEEDBACK  
7V - 40V  
(57V for HV)  
UNREGULATED  
DC INPUT  
+VIN  
1
4
L1  
OUTPUT  
+5V  
2
REGULATED  
OUTPUT  
3A  
100  
H
5
ON/OFF  
+
GND  
3
C
OUT  
+
D1  
1000  
C
IN  
Package Types  
TO263-5L  
TO220B-5L  
TO220-5L  
www.umw-ic.com  
1
友台半导体有限公司  

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