EEWORLDEEWORLDEEWORLD

Part Number

Search

PE53809S

Description
1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator
File Size484KB,28 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
Download Datasheet View All

PE53809S Overview

1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator

LM2575, NCV2575
1.0 A, Adjustable Output
Voltage, Step-Down
Switching Regulator
The LM2575 series of regulators are monolithic integrated circuits
ideally suited for easy and convenient design of a step−down
switching regulator (buck converter). All circuits of this series are
capable of driving a 1.0 A load with excellent line and load regulation.
These devices are available in fixed output voltages of 3.3 V, 5.0 V,
12 V, 15 V, and an adjustable output version.
These regulators were designed to minimize the number of external
components to simplify the power supply design. Standard series of
inductors optimized for use with the LM2575 are offered by several
different inductor manufacturers.
Since the LM2575 converter is a switch−mode power supply, its
efficiency is significantly higher in comparison with popular
three−terminal linear regulators, especially with higher input voltages.
In many cases, the power dissipated by the LM2575 regulator is so
low, that no heatsink is required or its size could be reduced
dramatically.
The LM2575 features include a guaranteed
±4%
tolerance on output
voltage within specified input voltages and output load conditions, and
±10%
on the oscillator frequency (±2% over 0°C to 125°C). External
shutdown is included, featuring 80
mA
typical standby current. The
output switch includes cycle−by−cycle current limiting, as well as
thermal shutdown for full protection under fault conditions.
Features
http://onsemi.com
1
5
TO−220
TV SUFFIX
CASE 314B
Heatsink surface connected to Pin 3
1
5
TO−220
T SUFFIX
CASE 314D
Pin
3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions
Adjustable Version Output Voltage Range of 1.23 V to 37 V
±4%
Maximum Over Line and Load Conditions
Guaranteed 1.0 A Output Current
Wide Input Voltage Range: 4.75 V to 40 V
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
Moisture Sensitivity Level (MSL) Equals 1
Pb−Free Packages are Available*
1.
2.
3.
4.
5.
V
in
Output
Ground
Feedback
ON/OFF
1
5
D
2
PAK
D2T SUFFIX
CASE 936A
Heatsink surface (shown as terminal 6 in
case outline drawing) is connected to Pin 3
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 25 of this data sheet.
Applications
Simple and High−Efficiency Step−Down (Buck) Regulators
Efficient Pre−Regulator for Linear Regulators
On−Card Switching Regulators
Positive to Negative Converters (Buck−Boost)
Negative Step−Up Converters
Power Supply for Battery Chargers
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 26 of this data sheet.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
©
Semiconductor Components Industries, LLC, 2009
June, 2009
Rev. 11
1
Publication Order Number:
LM2575/D
Problem with branch instruction B in ARM
Why is B limited to the range of plus or minus 32MB of the current instruction? Also, ARM instructions are word-aligned, and the lowest 2 bits of the address are fixed to 0. What does this mean? I loo...
linwj ARM Technology
Why does the voltage on the pin become 2.2V when the 3.3V power supply made of a voltage zener diode is used to power the microcontroller?
I changed R1 to 270 ohms. When it is 470 ohms, the output voltage is only 3.1V. 270 ohms is just 3.3V! But when it is connected to the VCC of the microcontroller, it becomes 2.2V. Do I need to add a v...
278023330 Microcontroller MCU
Looking for Keil crack limit to 8k or unlimited!
Many keil cracked software have restrictions (2k)! When writing programs, they are often limited, and the functions cannot be fully displayed when used!...
645715899 MCU
Embedded Engineers' Experience
[font=宋体]This article will explain in detail the concept of embedded, the similarities and differences between embedded development and how to make choices for engineers who are about to enter embedde...
jjkwz Embedded System
The Linux Foundation Celebrates 30 Years of Linux
https://linuxfoundation.org/en/linux30th/...
dcexpert DIY/Open Source Hardware
LPC1778 serial port baud rate adaptive problem
Does anyone know about this? Does it mean automatic baud rate detection?...
s1q23 NXP MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1419  46  656  2408  877  29  1  14  49  18 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号