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| 型号： | LM2576D2TR4-12 |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 稳压器 |
| 英文描述： | 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5 |
| 封装： | D2PAK-5 |
| 文件页数： | 1/28页 |
| 文件大小： | 275K |
| 代理商： | LM2576D2TR4-12 |
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Semiconductor Components Industries, LLC, 2005
September, 2005 Rev. 6
1
Publication Order Number:
LM2576/D
LM2576
3.0 A, 15 V, StepDown
Switching Regulator
The LM2576 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 3.0 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 LM2576 are offered by several
different inductor manufacturers.
Since the LM2576 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 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 LM2576
are available from several different manufacturers. This feature
greatly simplifies the design of switchmode power supplies.
The LM2576 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 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, 1.23 to 37 V ±4%
Maximum Over Line and Load Conditions
Guaranteed 3.0 A Output Current
Wide Input Voltage Range
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 HighEfficiency StepDown (Buck) Regulator
Efficient PreRegulator for Linear Regulators
OnCard Switching Regulators
Positive to Negative Converter (BuckBoost)
Negative StepUp Converters
Power Supply for Battery Chargers
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
Heatsink surface connected to Pin 3
TO220
T SUFFIX
CASE 314D
Pin
1.
Vin
2.
Output
3.
Ground
4.
Feedback
5.
ON/OFF
D2PAK
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 25 of this data sheet.
DEVICE MARKING INFORMATION
相关PDF资料 |
PDF描述 |
|---|---|
| LM2576TV-12G | 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PZFM5 |
| LM2596-12MWC | 7.5 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC |
| LM2596-ADJMWC | 7.5 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC |
| LM2596-ADJMDC | 7.5 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC |
| LM2601MDC | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2576D2TR4-3.3 | 功能描述:直流/直流开关调节器 3.3V 3A Buck PWM RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| LM2576D2TR4-3.3G | 功能描述:直流/直流开关调节器 3.3V 3A Buck PWM RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| LM2576D2TR4-3.3G-CUT TAPE | 制造商:ON 功能描述:LM2576 Series 40 V 3 A 52 kHz Step-Down Switching Regulator - D2PAK-5 |
| LM2576D2TR4-5G | 功能描述:直流/直流开关调节器 5V 3A Buck PWM RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| LM2576DP-12 | 制造商:HTC 制造商全称:HTC Korea TAEJIN Technology Co. 功能描述:3A, 52kHz, Step-Down Switching Regulator |
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