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参数资料
| 型号： | LM2575IKTGR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5 |
| 封装： | POWER FLEX, PLASTIC, 5 PIN |
| 文件页数： | 1/13页 |
| 文件大小： | 188K |
| 代理商： | LM2575IKTGR |
LM2575
1A SIMPLE STEPDOWN SWITCHING VOLTAGE REGULATOR
SLVS569A JANUARY 2005 REVISED FEBRUARY 2005
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Fixed 3.3-V, 5-V, 12-V, and 15-V Options
With
±5% Regulation (Max) Over Line,
Load, and Temperature Conditions
D Adjustable Option With a Range of 1.23 V
to 37 V and
±4% Regulation (Max) Over
Line, Load, and Temperature Conditions
D Specified 1-A Output Current
D Wide Input Voltage Range . . . 4.75 V to 40 V
D Requires Only Four External Components
(Fixed Versions) and Uses Readily
Available Standard Inductors
D 52-kHz (Typ) Fixed Frequency Internal
Oscillator
D TTL Shutdown Capability, With 50-mA (Typ)
Standby Current
D High Efficiency . . . as High as 88% (Typ)
D Thermal Shutdown and Current Limit
Protection With Cycle-by-Cycle Current
Limiting
D Applications:
Simple High-Efficiency Step-Down
(Buck) Regulator
Pre-Regulator for Linear Regulators
On-Card Switching Regulators
Positive-to-Negative Converter
(Buck-Boost)
description/ordering information
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.
PRODUCT
PREVIEW
Copyright
2005, Texas Instruments Incorporated
1
2
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5
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7
8
16
15
14
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12
11
10
9
NC
OUTPUT
NC
GND
NC
FB
NC
VIN
NC
GND
NC
ON/OFF
N PACKAGE
(TOP VIEW)
KC (TO-220) PACKAGE
(TOP VIEW)
KTT (TO-263) PACKAGE
(TOP VIEW)
ON/OFF
FEEDBACK
GND
OUTPUT
VIN
5
4
3
2
1
2
3
4
5
GND
KTG PACKAGE
(TOP VIEW)
ON/OFF
FEEDBACK
GND
OUTPUT
VIN
1
2
3
4
5
ON/OFF
FEEDBACK
GND
OUTPUT
VIN
GND
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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.
PowerFLEX is a trademark of Texas Instruments.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2575IKTT | 制造商:TI 制造商全称:Texas Instruments 功能描述:1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR |
| LM2575IKTTR | 制造商:TI 制造商全称:Texas Instruments 功能描述:1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR |
| LM2575IN | 功能描述:直流/直流开关调节器 1A Simple Step-Down Switching Volt Reg 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 |
| LM2575INE4 | 功能描述:直流/直流开关调节器 1A Simple Step-Down Switching Volt Reg 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 |
| LM2575M-12 | 制造商:OC White Company 功能描述:Conv DC-DC Single Step Down 4V to 40V 24-Pin SOIC W |
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