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| 型号： | LM2588T-12/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 1/38页 |
| 文件大小： | 0K |
| 描述： | IC REG MULTI CONFIG 12V TO220-7 |
| 标准包装： | 45 |
| 系列： | SIMPLE SWITCHER® |
| 类型： | 升压（升压），回扫，正向转换器 |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 12V |
| 输入电压： | 4 V ~ 40 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 100kHz ~ 200kHz |
| 电流 - 输出： | 5A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-7 成形引线 |
| 包装： | 管件 |
| 供应商设备封装： | TO-220-7 |
| 配用： | 551011367-051-ND - BOARD WEBENCH BUILD IT LM2586/88 |
| 其它名称： | *LM2588T-12 *LM2588T-12/NOPB LM2588T-12 |
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SNVS117D – APRIL 1998 – REVISED APRIL 2013
LM2588 SIMPLE SWITCHER ? 5A Flyback Regulator with Shutdown
Check for Samples: LM2588
1
FEATURES
DESCRIPTION
? Requires Few External Components
2345
? Family of Standard Inductors and
Transformers
The LM2588 series of regulators are monolithic
integrated circuits specifically designed for flyback,
step-up (boost), and forward converter applications.
The device is available in 4 different output voltage
?
NPN Output Switches 5.0A, Can Stand Off 65V
versions: 3.3V, 5.0V, 12V, and adjustable.
?
Wide Input Voltage Range: 4V to 40V
Requiring
a
minimum
number
of
external
?
?
?
?
?
?
?
?
Adjustable Switching Frequency: 100 kHz to
200 kHz
External Shutdown Capability
Draws Less Than 60 μ A When Shut Down
Frequency Synchronization
Current-mode Operation for Improved
Transient Response, Line Regulation, and
Current Limit
Internal Soft-start Function Reduces In-rush
Current During Start-up
Output Transistor Protected by Current Limit,
Under Voltage Lockout, and Thermal
Shutdown
System Output Voltage Tolerance of ±4% Max
Over Line and Load Conditions
components, these regulators are cost effective, and
simple to use. Included in the datasheet are typical
circuits of boost and flyback regulators. Also listed
are selector guides for diodes and capacitors and a
family of standard inductors and flyback transformers
designed to work with these switching regulators.
The power switch is a 5.0A NPN device that can
stand-off 65V. Protecting the power switch are current
and thermal limiting circuits, and an undervoltage
lockout circuit. This IC contains an adjustable
frequency oscillator that can be programmed up to
200 kHz. The oscillator can also be synchronized with
other devices, so that multiple devices can operate at
the same switching frequency.
Other features include soft start mode to reduce in-
rush current during start up, and current mode control
for improved rejection of input voltage and output
TYPICAL APPLICATIONS
load transients and cycle-by-cycle current limiting.
The device also has a shutdown pin, so that it can be
?
?
?
?
Flyback Regulator
Forward Converter
Multiple-output Regulator
Simple Boost Regulator
turned off externally. An output voltage tolerance of
±4%, within specified input voltages and output load
conditions, is ensured for the power supply system.
Connection Diagrams
7-Pin
Top View
Bent, 7-Pin
Side View
Figure 1. LM2588T-12 or LM2588T-ADJ
See Package Number NDZ0007B
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
3
4
5
Switchers Made Simple is a trademark of Texas Instruments.
SIMPLE SWITCHER is a registered trademark of Texas Instruments.
Switchers Made Simple is a registered trademark of dcl_owner.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright ? 1998–2013, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2588T-3.3 | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM2588T-3.3/NOPB | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM2588T-5.0 | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM2588T-5.0/NOPB | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM2588T50 | 制造商:Texas Instruments 功能描述:SWITCHING REG 5A 5.0V 2588 TO-220 |
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