參數(shù)資料
型號(hào)： LM2575
廠商： ON SEMICONDUCTOR
英文描述： 1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator(1.0A,可調(diào)輸出電壓,降壓型開關(guān)穩(wěn)壓器)
中文描述： 1.0甲，可調(diào)輸出電壓，降壓型開關(guān)穩(wěn)壓器（1.0安培，可調(diào)輸出電壓，降壓型開關(guān)穩(wěn)壓器）
文件頁(yè)數(shù)： 1/28頁(yè)
文件大?。?/td> 363K
代理商： LM2575
Semiconductor Components Industries, LLC, 2005
November, 2005 Rev. 8
1
Publication Order Number:
LM2575/D
LM2575
1.0 A, Adjustable Output
Voltage, StepDown
Switching Regulator
The LM2575 series of regulators are monolithic integrated circuits
ideally suited for easy and convenient design of a stepdown
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 switchmode power supply, its
efficiency is significantly higher in comparison with popular
threeterminal 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 A typical standby current. The
output switch includes cyclebycycle current limiting, as well as
thermal shutdown for full protection under fault conditions.
Features
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
PbFree Packages are Available*
Applications
Simple and HighEfficiency StepDown (Buck) Regulators
Efficient PreRegulator for Linear Regulators
OnCard Switching Regulators
Positive to Negative Converters (BuckBoost)
Negative StepUp Converters
Power Supply for Battery Chargers
*For additional information on our PbFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
See detailed ordering and shipping information in the package
dimensions section on page 24 of this data sheet.
ORDERING INFORMATION
1
5
TO220
TV SUFFIX
CASE 314B
1
5
1
5
Heatsink surface connected to Pin 3
TO220
T SUFFIX
CASE 314D
Pin
1.
2.
3.
4.
5.
V
in
Output
Ground
Feedback
ON/OFF
D
2
PAK
D2T SUFFIX
CASE 936A
Heatsink surface (shown as terminal 6 in
case outline drawing) is connected to Pin 3
See general marking information in the device marking
section on page 25 of this data sheet.
DEVICE MARKING INFORMATION
http://onsemi.com
相關(guān)PDF資料
PDF描述
LM2576D2T-12 EASY SWITCHER 3.0 A STEP.DOWN VOLTAGE REGULATOR
LM2576D2T-12 EASY SWITCHERE⑩ 3.0 A STEP-DOWN VOLTAGE REGULATOR
LM2576R 3.0A, 15V, Step-Down Switching Regulator
LM2577S-12 Pressure Transducer, Series 19 mm, Uncompensated, Pressure Range: 0 psi to 100 psi, Absolute, flush mount, 10 Vdc excitation
LM2577N-ADJ Pressure Transducer, Series 19 mm, Compensated, Pressure Range: 0 psi to 200 psi, Absolute, flush mount with flange, 10 Vdc excitation
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2575/D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Easy Switcher? 1.0 A Step-Down Voltage Regulator
LM2575_05 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:1.0 A, Adjustable Output Voltage, Step−Down Switching Regulator
LM2575_06 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATOR
LM2575_09 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:52kHz Simple 1A Buck Regulator
LM2575-05IKC 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR
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