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参数资料
| 型号： | 5962-9167302QXA |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 3.2 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, MBFM2 |
| 封装： | TO-3, 4 PIN |
| 文件页数： | 1/29页 |
| 文件大小： | 658K |
| 代理商： | 5962-9167302QXA |
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LM1575/LM2575/LM2575HV Series
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
power supplies.
Other features include a guaranteed ±4% tolerance on out-
put voltage within specified input voltages and output load
conditions, and ±10% on the oscillator frequency. External
shutdown is included, featuring 50 A (typical) standby cur-
rent. The output switch includes cycle-by-cycle current limit-
ing, as well as thermal shutdown for full protection under
fault conditions.
Features
n 3.3V, 5V, 12V, 15V, and adjustable output versions
n Adjustable version output voltage range,
1.23V to 37V (57V for HV version) ±4% max over
line and load conditions
n Guaranteed 1A output current
n Wide input voltage range, 40V up to 60V for HV version
n Requires only 4 external components
n 52 kHz fixed frequency internal oscillator
n TTL shutdown capability, low power standby mode
n High efficiency
n Uses readily available standard inductors
n Thermal shutdown and current limit protection
n P
+ Product Enhancement tested
Applications
n Simple high-efficiency step-down (buck) regulator
n Efficient pre-regualtor for linear regulators
n On-card switching regulators
n Positive to negative converter (Buck-Boost)
Typical Application (Fixed Output Voltage Versions)
SIMPLE SWITCHER is a registered trademark of National Semiconductor Corporation.
DS011475-1
Note: Pin numbers are for the TO-220 package.
May 1999
LM1575/LM2575/LM2575HV
Series
SIMPLE
SWITCHER
1A
Step-Down
V
oltage
Regulator
1999 National Semiconductor Corporation
DS011475
www.national.com
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PDF描述 |
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相关代理商/技术参数 |
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|---|---|
| 5962-9167601HXA | 制造商:Micropac Industries Inc 功能描述:Optocoupler Logic-Out Open Collector DC-IN 1-CH 6-Pin 制造商:Micropac Industries, Inc. 功能描述:Optocoupler Logic-Out Open Collector DC-IN 1-CH 6-Pin |
| 59629167702MZA | 制造商:Integrated Device Technology Inc 功能描述:FIFO Mem Async Dual Depth/Width Uni-Dir 8K x 9 32-Pin LLCC |
| 5962-9167703MXA | 制造商:Integrated Device Technology Inc 功能描述:FIFO ASYNC DUAL DEPTH/WIDTH UNI-DIR 8KX9 28CDIP - Rail/Tube |
| 5962-9167703MYA | 制造商:Integrated Device Technology Inc 功能描述:FIFO ASYNC DUAL DEPTH/WIDTH UNI-DIR 8KX9 28CDIP - Rail/Tube |
| 5962-9167703MZA | 功能描述:先进先出 RoHS:否 制造商:IDT 电路数量: 数据总线宽度:18 bit 总线定向:Unidirectional 存储容量:4 Mbit 定时类型:Synchronous 组织:256 K x 18 最大时钟频率:100 MHz 访问时间:10 ns 电源电压-最大:3.6 V 电源电压-最小:6 V 最大工作电流:35 mA 最大工作温度:+ 85 C 封装 / 箱体:TQFP-80 封装: |
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