參數(shù)資料
型號： LM2576D2T-12
廠商： MOTOROLA INC
元件分類： 穩(wěn)壓器
英文描述： EASY SWITCHERE⑩ 3.0 A STEP-DOWN VOLTAGE REGULATOR
中文描述： 3 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5
封裝： PLASTIC, D2PAK-5
文件頁數(shù)： 2/26頁
文件大?。?/td> 278K
代理商： LM2576D2T-12
LM2576
http://onsemi.com
2
Figure 1. Block Diagram and Typical Application
7.0 V 40 V
Unregulated
DC Input
L1
100 H
GN
D
+V
in
1
C
in
100 F
3
ON/OFF
5
Output
2
Feedback
4
D1
1N5822
C
out
1000 F
Typical Application
(Fixed Output Voltage Versions)
Representative Block Diagram and Typical Application
Unregulated
DC Input
+V
in
1
C
out
Feedback
4
C
in
L1
D1
R2
R1
1.0 k
Output
2
GND
3
ON/OFF
5
Reset
Latch
Thermal
Shutdown
52 kHz
Oscillator
1.235 V
BandGap
Reference
Freq
Shift
18 kHz
Comparator
Fixed Gain
Error Amplifier
Current
Limit
Driver
1.0 Amp
Switch
ON/OFF
3.1 V Internal
Regulator
Regulated
Output
V
out
Load
Output
Voltage Versions
3.3 V
5.0 V
12 V
15 V
R2
( )
1.7 k
3.1 k
8.84 k
11.3 k
For adjustable version
R1 = open, R2 = 0
LM2576
5.0 V Regulated
Output 3.0 A Load
This device contains 162 active transistors.
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Maximum Supply Voltage
V
in
45
V
ON/OFF Pin Input Voltage
0.3 V
≤
V
≤
+V
in
V
Output Voltage to Ground (SteadyState)
1.0
V
Power Dissipation
Case 314B and 314D (TO220, 5Lead)
Thermal Resistance, JunctiontoAmbient
Thermal Resistance, JunctiontoCase
Case 936A (D
2
PAK)
Thermal Resistance, JunctiontoAmbient
Thermal Resistance, JunctiontoCase
P
D
R
JA
R
JC
P
D
R
JA
R
JC
T
stg
Internally Limited
65
5.0
Internally Limited
70
5.0
W
°
C/W
°
C/W
W
°
C/W
°
C/W
Storage Temperature Range
65 to +150
°
C
Minimum ESD Rating (Human Body Model: C = 100 pF, R = 1.5 k )
2.0
kV
Lead Temperature (Soldering, 10 seconds)
260
°
C
Maximum Junction Temperature
T
J
150
°
C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2576D2T-15 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:EASY SWITCHERE⑩ 3.0 A STEP-DOWN VOLTAGE REGULATOR
LM2576D2T-15G 功能描述:直流/直流開關(guān)調(diào)節(jié)器 15V 3A 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
LM2576D2T-3.3 功能描述:直流/直流開關(guān)調(diào)節(jié)器 3.3V 3A 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
LM2576D2T-3.3G 功能描述:直流/直流開關(guān)調(diào)節(jié)器 3.3V 3A 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
LM2576D2T-5 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Easy Switcher 3.0A Step-Down Voltage Regulator
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