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LM2575T-5
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LM2575T-5数据手册
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1A, 52kHz, Step-Down Switching Regulator LM2575
FEATURES
3.3V, 5.0V, 12V, 15V, and Adjustable Output Versions
Adjustable Version Output Voltage Range, 1.23 to 37V
+/- 4% AG10 Maximum Over Line and Load Conditions
Guaranteed 1A Output Current
Wide Input Voltage Range
Requires Only 4 External Components
52kHz 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 3
Applications
Simple High-Efficiency Step-Down(Buck) Regulator
Efficient Pre-Regulator for Linear Regulators
On-Card Switching Regulators
Positive to Negative Converter(Buck-Boost)
Negative Step-Up Converters
Power Supply for Battery Chargers
DESCRIPTION
ORDERING INFORMATION
The LM2575 series of regulators are monolithic integrated
circuits ideally suited for easy and convenient design of a
step-down switching regualtor(buck converter).
All circuits of this series are capable of driving a 1A load
with excellent line and load regulation. These devices are
available in fixed output voltages of 3.3V, 5.0V,12V, 15V,
and an adjustable output version.
These regulatiors were designed to minimize the number of externalcomponents 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 limear reguators, especially with higher input voltages.
available from several different manufacturers. This feature greatly simplifies the design of
switch-mode power supplies. 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℃ to 125 ℃).
External shutdown is included, featuring 80 ㎂(typical) standby current. The output switch includes
cycle-bycycle current limiting, as well as thermal shutdown for full protection under fault conditions.
2008 - Ver. 1.0
HTC
1
Device Marking Package
LM2575T-X.X LM2575T-X.X TO-220
In many cases, the power dissipated is so low that no heatsink is required or its size could
be reduced dramatically. A standard series of inductors optimized for use with the LM2575 are
LM2575TV-X.X LM2575T-X.X
LM2575R LM2575R-X.X TO-263
TO-220V
1. Vin 2. Output 3. Ground
4. Feedback 5. On/Off
1
5
1
5
1
5
TO-220 PKG
TO-263 PKG
TO-220V PKG

LM2575T-5 数据手册

HTC
13 页 / 0.6 MByte

LM2575 数据手册

TI(德州仪器)
1A,5V固定输出,降压电压稳压器
TI(德州仪器)
SIMPLE SWITCHER® 降压调节器,LM257x 系列### 直流/直流开关调节器,Texas Instruments用于高达 75V 的宽电压输入设计,以及易用性和灵活性之间的平衡。
TI(德州仪器)
Texas Instruments用于高达 75V 的宽电压输入设计,以及易用性和灵活性之间的平衡。
TI(德州仪器)
TEXAS INSTRUMENTS  LM2575S-5.0/NOPB  直流/直流转换器/开关式稳压器
TI(德州仪器)
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
TI(德州仪器)
SIMPLE SWITCHER® 降压调节器,LM257x 系列### 直流/直流开关调节器,Texas Instruments用于高达 75V 的宽电压输入设计,以及易用性和灵活性之间的平衡。
ON Semiconductor(安森美)
ON SEMICONDUCTOR  LM2575T-12G  直流-直流开关降压, 逐步递降稳压器, 可调, 4.75V-40V输入, 1A输出, 52kHz, TO-220-5
TI(德州仪器)
TEXAS INSTRUMENTS  LM2575HVT-ADJ/NOPB  直流/直流转换器/开关式稳压器
TI(德州仪器)
SIMPLE SWITCHER® 降压调节器,LM257x 系列### 直流/直流开关调节器,Texas Instruments用于高达 75V 的宽电压输入设计,以及易用性和灵活性之间的平衡。
TI(德州仪器)
LM1575 / LM2575 / LM2575HV SIMPLE SWITCHER 1A降压型稳压器 LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator
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