參數(shù)資料
型號(hào)： LM2575BWM
廠商： MICREL INC
元件分類： 穩(wěn)壓器
英文描述： 52kHz Simple 1A Buck Regulator
中文描述： 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDSO24
封裝： SOIC-24
文件頁數(shù)： 7/12頁
文件大?。?/td> 195K
代理商： LM2575BWM
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
LM2575BU 52kHz Simple 1A Buck Regulator
LM2575BT 52kHz Simple 1A Buck Regulator
LM2575BN Advanced LinCMOS(TM) Precision Chopper-Stabilized Operational Amplifier 8-PDIP
LM2575-5.0BU Advanced LinCMOS(TM) Precision Chopper-Stabilized Operational Amplifier 14-PDIP
LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2575BWM TR 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1A Step-Down SMPS Regulator RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
LM2575D2T-005 功能描述:直流/直流開關(guān)調(diào)節(jié)器 5V 1A Buck PWM RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
LM2575D2T-012 功能描述:直流/直流開關(guān)調(diào)節(jié)器 12V 1A Buck PWM RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
LM2575D2T-012G 功能描述:直流/直流開關(guān)調(diào)節(jié)器 12V 1A Buck PWM RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
LM2575D2T-015 功能描述:直流/直流開關(guān)調(diào)節(jié)器 15V 1A Buck PWM RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*