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参数资料
| 型号： | LM2575-12IN |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 4 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封装： | MS-001BB, PLASTIC, DIP-16 |
| 文件页数： | 1/12页 |
| 文件大小： | 195K |
| 代理商： | LM2575-12IN |
www.ti.com
FEATURES
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NC
OUTPUT
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GND
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FB
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VIN
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GND
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ON/OFF
N (PDIP) PACKAGE
(TOP VIEW)
KTT (TO-263) PACKAGE
(TOP VIEW)
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ON/OFF
FEEDBACK
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OUTPUT
VIN
APPLICATIONS
DESCRIPTION/ORDERING INFORMATION
LM2575
1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATOR
SLVS569D – JANUARY 2005 – REVISED JULY 2005
Fixed 3.3-V, 5-V, 12-V, and 15-V Options With
±5% Regulation (Max) Over Line, Load, and
Temperature Conditions
Adjustable Option With a Range of 1.23 V to
37 V and
±4% Regulation (Max) Over Line,
Load, and Temperature Conditions
Specified 1-A Output Current
Wide Input Voltage Range
…4.75 V to 40 V
Requires Only Four External Components
(Fixed Versions) and Uses Readily Available
Standard Inductors
52-kHz (Typ) Fixed-Frequency Internal
Oscillator
TTL Shutdown Capability With 50-
A (Typ)
Standby Current
High Efficiency
…as High as 88% (Typ)
Thermal Shutdown and Current-Limit
Protection With Cycle-by-Cycle Current
Limiting
Simple High-Efficiency Step-Down (Buck)
Regulator
Pre-Regulator for Linear Regulators
On-Card Switching Regulators
Positive-to-Negative Converter (Buck-Boost)
The LM2575 greatly simplifies the design of switching power supplies by conveniently providing all the active
functions needed for a step-down (buck) switching regulator in an integrated circuit. Accepting a wide input
voltage range and available in fixed output voltages of 3.3 V, 5 V, 12 V, 15 V, or an adjustable output version,
the LM2575 has an integrated switch capable of delivering 1 A of load current, with excellent line and load
regulation. The device also offers internal frequency compensation, a fixed-frequency oscillator, cycle-by-cycle
current limiting, and thermal shutdown. In addition, a manual shutdown is available via an external ON/OFF pin.
The LM2575 represents a superior alternative to popular three-terminal linear regulators. Due to its high
efficiency, it significantly reduces the size of the heat sink and, in many cases, no heat sink is required.
Optimized for use with standard series of inductors available from several different manufacturers, the LM2575
greatly simplifies the design of switch-mode power supplies by requiring a minimal addition of only four to six
external components for operation.
The LM2575 is characterized for operation over the virtual junction temperature range of –40
°C to 125°C.
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.
PRODUCTION DATA information is current as of publication date.
Copyright 2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
相关PDF资料 |
PDF描述 |
|---|---|
| LM2575-15MWC | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, UUC |
| LM2575-5.0MDC | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, UUC |
| LM2575-ADJMWC | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, UUC |
| LM2575HVMX-12/NOPB | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDSO24 |
| LM2575-15MDC | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, UUC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2575-12T | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Easy Switcher 1.0 A Step-Down Voltage Regulator(389.50 k) |
| LM2575-12TA5R | 制造商:FCI 制造商全称:First Components International 功能描述:1.0A Step - Down Voltage Switching Regulators 1A output current |
| LM2575-12TA5T | 制造商:FCI 制造商全称:First Components International 功能描述:1.0A Step - Down Voltage Switching Regulators 1A output current |
| LM2575-12TB5BT | 制造商:FCI 制造商全称:First Components International 功能描述:1.0A Step - Down Voltage Switching Regulators 1A output current |
| LM2575-12TB5T | 制造商:FCI 制造商全称:First Components International 功能描述:1.0A Step - Down Voltage Switching Regulators 1A output current |
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