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LM2596TVADJG 数据手册 - ON Semiconductor（安森美）
制造商:
ON Semiconductor（安森美）
分类:
DC/DC转换器
封装:
TO-220-5
描述:
ON SEMICONDUCTOR LM2596TVADJG DC-DC Switching Buck (Step Down) Regulator, Adj., 4.5V-40Vin, 1.23V-37V/3A out, 150 kHz, TO-220-5 新
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LM2596TVADJG数据手册
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© Semiconductor Components Industries, LLC, 2008
November, 2008 − Rev. 0
1 Publication Order Number:
LM2596/D
LM2596
3.0 A, Step-Down Switching
Regulator
The LM2596 regulator is monolithic integrated circuit ideally suited
for easy and convenient design of a step−down switching regulator
(buck converter). It is capable of driving a 3.0 A load with excellent
line and load regulation. This device is available in adjustable output
version and it is internally compensated to minimize the number of
external components to simplify the power supply design.
Since LM2596 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.
The LM2596 operates at a switching frequency of 150 kHz thus
allowing smaller sized filter components than what would be needed
with lower frequency switching regulators. Available in a standard
5−lead TO−220 package with several different lead bend options, and
D
2
PAK surface mount package.
The other features include a guaranteed $4% tolerance on output
voltage within specified input voltages and output load conditions, and
$15% on the oscillator frequency. External shutdown is included,
featuring 80 mA (typical) standby current. Self protection features
include switch cycle−by−cycle current limit for the output switch, as
well as thermal shutdown for complete protection under fault
conditions.
Features
• Adjustable Output Voltage Range 1.23 V − 37 V
• Guaranteed 3.0 A Output Load Current
• Wide Input Voltage Range up to 40 V
• 150 kHz Fixed Frequency Internal Oscillator
• TTL Shutdown Capability
• Low Power Standby Mode, typ 80 mA
• Thermal Shutdown and Current Limit Protection
• Internal Loop Compensation
• Moisture Sensitivity Level (MSL) Equals 1
• Pb−Free Packages are Available
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
See detailed ordering and shipping information in the package
dimensions section on page 23 of this data sheet.
ORDERING INFORMATION
1
5
TO−220
TV SUFFIX
CASE 314B
1
5
Heatsink surface connected to Pin 3
TO−220
T SUFFIX
CASE 314D
Pin 1. V
in
2. Output
3. Ground
4. Feedback
5. ON
/OFF
D
2
PAK
D2T SUFFIX
CASE 936A
Heatsink surface (shown as terminal 6 in
case outline drawing) is connected to Pin 3
1
5
http://onsemi.com
See general marking information in the device marking
section on page 23 of this data sheet.
DEVICE MARKING INFORMATION
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