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参数资料
| 型号： | LM2575IKTTR |
| 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, PSSO5 |
| 封装： | TO-263, PLASTIC, 5 PIN |
| 文件页数： | 10/12页 |
| 文件大小： | 195K |
| 代理商： | LM2575IKTTR |
www.ti.com
APPLICATION INFORMATION
Layout Guidelines
LM2575-xx
Fixed Output
CIN
100
F
+
+VIN
1
3
GND
5
D1
2
L1
330
H
COUT
330
F
+
4
L
O
A
D
VOUT
VIN
Unregulated
DC Input
CIN = 100 F, Aluminum Electrolytic
COUT = 330 F, Aluminum Electrolytic
D1 = Schottky
L1 = 330
H
Fixed Output Voltage Versions
LM2575
(ADJ)
CIN
100
F
+
+VIN
1
3
GND
5
ON/OFF
D1
11DQ06
OUTPUT
2
L1
330
H
COUT
330
F
+
FEEDBACK
4
L
O
A
D
VOUT
7-V to 60-V
Unregulated
DC Input
Adjustable Output Voltage Versions
VOUT = VREF(1 + R2/R1) = 5 V
Where,
VREF = 1.23 V
R1 = 2 kW
R2 = 6.12 kW
R2
R1
ON/OFF
OUTPUT
FEEDBACK
LM2575
1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATOR
SLVS569D – JANUARY 2005 – REVISED JULY 2005
With any switching regulator, circuit layout plays an important role in circuit performance. Wiring and parasitic
inductances, as well as stray capacitances, are subjected to rapidly switching currents, which can result in
unwanted voltage transients. To minimize inductance and ground loops, the length of the leads indicated by
heavy lines should be minimized. Optimal results can be achieved by single-point grounding (see Figure 2) or by
ground-plane construction. For the same reasons, the two programming resistors used in the adjustable version
should be located as close as possible to the regulator to keep the sensitive feedback wiring short.
A.
Pin numbers are for the KTT (TO-263) package.
Figure 2. Test Circuit and Layout Guidelines
7
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参数描述 |
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| 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 |
| LM2575M-12/NOPB | 功能描述:IC REG BUCK 12V 1A 24-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:SIMPLE SWITCHER® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:3.3V 输入电压:4.5 V ~ 24 V PWM 型:- 频率 - 开关:- 电流 - 输出:125mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 包装:Digi-Reel® 供应商设备封装:SOT-6 其它名称:MAX1836EUT33#TG16DKR |
| LM2575M-15 | 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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