參數(shù)資料
型號(hào)： LM2575
廠商： ON SEMICONDUCTOR
英文描述： 1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator(1.0A,可調(diào)輸出電壓,降壓型開(kāi)關(guān)穩(wěn)壓器)
中文描述： 1.0甲，可調(diào)輸出電壓，降壓型開(kāi)關(guān)穩(wěn)壓器（1.0安培，可調(diào)輸出電壓，降壓型開(kāi)關(guān)穩(wěn)壓器）
文件頁(yè)數(shù)： 4/28頁(yè)
文件大?。?/td> 363K
代理商： LM2575
LM2575
http://onsemi.com
4
DEVICE PARAMETERS
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, V
in
= 12 V for the 3.3 V, 5.0 V, and Adjustable version, V
in
= 25 V
for the 12 V version, and V
in
= 30 V for the 15 V version. I
Load
= 200 mA. For typical values T
J
= 25
°
C, for min/max values T
J
is the
operating junction temperature range that applies [Note 2], unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
ALL OUTPUT VOLTAGE VERSIONS
Feedback Bias Current (V
out
= 5.0 V Adjustable Version Only)
T
J
= 25
°
C
T
J
= 40 to +125
°
C
I
b
nA
25
100
200
Oscillator Frequency Note 3
T
J
= 25
°
C
T
J
= 0 to +125
°
C
T
J
= 40 to +125
°
C
Saturation Voltage (I
out
= 1.0 A Note 4)
T
J
= 25
°
C
T
J
= 40 to +125
°
C
Max Duty Cycle (“on”) Note 5
f
osc
kHz
47
42
52
58
63
V
sat
V
1.0
1.2
1.3
DC
94
98
%
Current Limit (Peak Current Notes 4 and 3)
T
J
= 25
°
C
T
J
= 40 to +125
°
C
Output Leakage Current Notes 6 and 7, T
J
= 25
°
C
Output = 0 V
Output = 1.0 V
I
CL
A
1.7
1.4
2.3
3.0
3.2
I
L
mA
0.8
6.0
2.0
20
Quiescent Current Note 6
T
J
= 25
°
C
T
J
= 40 to +125
°
C
Standby Quiescent Current (ON/OFF Pin = 5.0 V (“off”))
T
J
= 25
°
C
T
J
= 40 to +125
°
C
ON/OFF Pin Logic Input Level (Test Circuit Figure 14)
V
out
= 0 V
T
J
= 25
°
C
T
J
= 40 to +125
°
C
V
out
= Nominal Output Voltage
T
J
= 25
°
C
T
J
= 40 to +125
°
C
I
Q
mA
5.0
9.0
11
I
stby
A
15
80
200
400
V
V
IH
2.2
2.4
1.4
V
IL
1.2
1.0
0.8
ON/OFF Pin Input Current (Test Circuit Figure 14)
ON/OFF Pin = 5.0 V (“off”), T
J
= 25
°
C
ON/OFF Pin = 0 V (“on”), T
J
= 25
°
C
3. The oscillator frequency reduces to approximately 18 kHz in the event of an output short or an overload which causes the regulated output
voltage to drop approximately 40% from the nominal output voltage. This self protection feature lowers the average dissipation of the IC by
lowering the minimum duty cycle from 5% down to approximately 2%.
4. Output (Pin 2) sourcing current. No diode, inductor or capacitor connected to output pin.
5. Feedback (Pin 4) removed from output and connected to 0 V.
6. Feedback (Pin 4) removed from output and connected to +12 V for the Adjustable, 3.3 V, and 5.0 V versions, and +25 V for the 12 V and
15 V versions, to force the output transistor “off”.
7. V
in
= 40 V.
A
I
IH
I
IL
15
0
30
5.0
相關(guān)PDF資料
PDF描述
LM2576D2T-12 EASY SWITCHER 3.0 A STEP.DOWN VOLTAGE REGULATOR
LM2576D2T-12 EASY SWITCHERE⑩ 3.0 A STEP-DOWN VOLTAGE REGULATOR
LM2576R 3.0A, 15V, Step-Down Switching Regulator
LM2577S-12 Pressure Transducer, Series 19 mm, Uncompensated, Pressure Range: 0 psi to 100 psi, Absolute, flush mount, 10 Vdc excitation
LM2577N-ADJ Pressure Transducer, Series 19 mm, Compensated, Pressure Range: 0 psi to 200 psi, Absolute, flush mount with flange, 10 Vdc excitation
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2575/D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Easy Switcher? 1.0 A Step-Down Voltage Regulator
LM2575_05 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:1.0 A, Adjustable Output Voltage, Step−Down Switching Regulator
LM2575_06 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATOR
LM2575_09 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:52kHz Simple 1A Buck Regulator
LM2575-05IKC 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR
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

*
*
*