- 您现在的位置：买卖IC网 > PDF目录44547 > LM2575D2TR4-5 (ON SEMICONDUCTOR) 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5 PDF资料下载
参数资料
| 型号： | LM2575D2TR4-5 |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 稳压器 |
| 英文描述： | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5 |
| 封装： | PLASTIC, D2PAK-5 |
| 文件页数： | 60/62页 |
| 文件大小： | 1103K |
| 代理商： | LM2575D2TR4-5 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页当前第60页第61页第62页
LM2575
3–119
MOTOROLA ANALOG IC DEVICE DATA
Figure 14. Typical Test Circuit
D1
1N5819
L1
330
H
Output
2
4
Feedback
Cout
330
F
/16 V
Cin
100
F/50 V
LM2575–5
1
5
3ON/OFF
Gnd
+Vin
Load
Vout
Regulated
Output
Vin
Unregulated
DC Input
8.0 V – 40 V
D1
1N5819
L1
330
H
Output
2
4
Feedback
Cout
330
F
/16 V
Cin
100
F/50 V
LM2575
Adjustable
1
5
3ON/OFF
Gnd
+Vin
Load
Vout
Regulated
Output
Unregulated
DC Input
8.0 V – 40 V
5.0 Output Voltage Versions
Adjustable Output Voltage Versions
Vout + Vref 1 )
R2
R1
R2
+ R1
Vout
V
ref
–1
Where Vref = 1.23 V, R1
between 1.0 k
and 5.0 k
Cin
100
F, 50 V, Aluminium Electrolytic
Cout
330
F, 16 V, Aluminium Electrolytic
D1
Schottky, 1N5819
L1
330
F, PE–52627 (for 5.0 V in, 3.3 V out,
use 100
H, PE–92108)
R2
R1
PCB LAYOUT GUIDELINES
As in any switching regulator, the layout of the printed
circuit board is very important. Rapidly switching currents
associated with wiring inductance, stray capacitance and
parasitic inductance of the printed circuit board traces can
generate voltage transients which can generate
electromagnetic interferences (EMI) and affect the desired
operation. As indicated in the Figure 14, to minimize
inductance and ground loops, the length of the leads
indicated by heavy lines should be kept as short as possible.
For best results, single–point grounding (as indicated) or
ground plane construction should be used.
On the other hand, the PCB area connected to the Pin 2
(emitter of the internal switch) of the LM2575 should be kept
to a minimum in order to minimize coupling to sensitive
circuitry.
Another sensitive part of the circuit is the feedback. It is
important to keep the sensitive feedback wiring short. To
assure this, physically locate the programming resistors near
to the regulator, when using the adjustable version of the
LM2575 regulator.
相关PDF资料 |
PDF描述 |
|---|---|
| LM2575HVT-5.0FLOWLB03/NOPB | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 |
| LM2575HVT-ADJFLOWLB03/NOPB | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 |
| LM2575T-ADJFLOWLB03/NOPB | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 |
| LM2575IKC | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 |
| LM2575-05IKC | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2575EP | 制造商:NSC 制造商全称:National Semiconductor 功能描述:SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
| LM2575HV | 制造商:NSC 制造商全称:National Semiconductor 功能描述:SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
| LM2575HVM12 | 制造商:Texas Instruments 功能描述:* |
| LM2575HVM-12 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
| LM2575HVM-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 |
发布紧急采购，3分钟左右您将得到回复。