- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358819 > LM2575N-5.0 (NATIONAL SEMICONDUCTOR CORP) Advanced LinCMOS(TM) Precision Chopper-Stabilized Operational Amplifier 14-PDIP PDF資料下載
參數(shù)資料
| 型號： | LM2575N-5.0 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Advanced LinCMOS(TM) Precision Chopper-Stabilized Operational Amplifier 14-PDIP |
| 中文描述： | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 195K |
| 代理商： | LM2575N-5.0 |
www.ti.com
APPLICATION INFORMATION
Layout Guidelines
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.
LM2575-xx
Fixed Output
C
IN
100
μ
F
+
+V
IN
1
3
GND
5
D1
2
L1
330
μ
H
C
OUT
330
μ
F
+
4
L
O
A
D
V
OUT
V
IN
Unregulated
DC Input
C
IN
= 100
μ
F, Aluminum Electrolytic
C
OUT
= 330
μ
F, Aluminum Electrolytic
D1 = Schottky
L1 = 330
μ
H
Fixed Output Voltage Versions
LM2575
(ADJ)
C
IN
100
μ
F
+
+V
IN
1
3
GND
5
ON/OFF
D1
11DQ06
OUTPUT
2
L1
330
μ
H
C
OUT
330
μ
F
+
FEEDBACK
4
L
O
A
D
V
OUT
7-V to 60-V
Unregulated
DC Input
Adjustable Output Voltage Versions
V
OUT
= V
REF
(1 + R2/R1) = 5 V
Where,
V
REF
= 1.23 V
R1 = 2 k
R2 = 6.12 k
R2
R1
ON/OFF
OUTPUT
FEEDBACK
LM2575
1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATOR
SLVS569D–JANUARY 2005–REVISED JULY 2005
A.
Pin numbers are for the KTT (TO-263) package.
Figure 2. Test Circuit and Layout Guidelines
7
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2575HVM-ADJ | SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
| LM2575HVM-15 | SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
| LM2575HVM-12 | SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
| LM2575HVT-3.3 | SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
| LM2575HVT-15 | SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2575N50 | 制造商:Texas Instruments 功能描述:SWITCHING REG 1A 5.0V 2575 DIP16 |
| LM2575NADJ | 制造商:NATIONAL 功能描述:* |
| LM2575N-ADJ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| LM2575N-ADJ/NOPB | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| LM2575R | 制造商:HTC 制造商全稱:HTC Korea TAEJIN Technology Co. 功能描述:1A, 52kHz, Step-Down Switching Regulator |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。