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参数资料
| 型号： | LM2576-3.3BT |
| 厂商： | MICREL INC |
| 元件分类： | 稳压器 |
| 英文描述： | 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 |
| 封装： | TO-220, 5 PIN |
| 文件页数： | 8/9页 |
| 文件大小： | 57K |
| 代理商： | LM2576-3.3BT |
M9999-082605-B
8
August 2005
LM2576
Micrel, Inc.
LM2575
+
100 F
+VIN
1
3
GND
5
ON/OFF
2
OUTPUT
4
FEEDBACK
L1
330 H
+
D1
MBR360
COUT
470F
R2
R1
VOUT
5.00V
7V - 40V
UNREGULATED
DC INPUT
CIN
L
O
A
D
CIN — 100F, 75V Aluminum Electrolytic
COUT — 470F, 15V Aluminum Electrolytic
D1 — Schottky, MBR360
L1 — 330H, 415-0926 (AIE)
R1 — 1k, 0.01%
R2 — 3.065k, 0.01%
5-pin TO-220 socket—2936 (Loranger Mfg. Co.)
4-pin TO-3 socket—8112-AG7 (Augat Inc.)
LM2575-5.0
+
100 F
+VIN
1
3
GND
5
ON/OFF
2
OUTPUT
4
FEEDBACK
L1
330 H
+
D1
11DQ06
COUT
220F
VOUT
5.00V
Note: Pin numbers are for TO-220 Package
7V - 40V
UNREGULATED
DC INPUT
CIN
CIN — 100F, 75V Aluminum Electrolytic
COUT — 330F, 15V Aluminum Electrolytic
D1 — Schottky, 11DQ06
L1 — 100H, 415-0926 (AIE)
5-pin TO-220 socket—2936 (Loranger Mfg. Co.)
4-pin TO-3 socket—8112-AG7 (Augat Inc.)
L
O
A
D
ON/OFF
COMPARATOR
FIXED GAIN
ERROR AMP
3 AMP
SWITCH
OUTPUT
DRIVER
+
-
+
-
VIN
FEED-
BACK
1.23V
BAND-GAP
REFERENCE
52 kHz
OSCILLATOR
RESET
THERMAL
SHUTDOWN
CURRENT
LIMIT
5
2
3
1
Note: Pin numbers are for the TO-220 package
INTERNAL
REGULATOR
ON/OFF
GND
ON/OFF
COMPARATOR
FIXED GAIN
ERROR AMP
3 AMP
SWITCH
OUTPUT
DRIVER
+
-
+
-
VIN
FEED-
BACK
1.23V
BAND-GAP
REFERENCE
52 kHz
OSCILLATOR
RESET
THERMAL
SHUTDOWN
CURRENT
LIMIT
5
2
3
1
4
INTERNAL
REGULATOR
ON/OFF
GND
3.1k
1.0k
4
Block Diagrams
As in any switching regulator, layout is very important. Rapidly switching currents associated with wiring inductance generate voltage transients
which can cause problems. For minimal stray inductance and ground loops, the length of the leads indicated by heavy lines should be kept as
short as possible. Single-point grounding (as indicated) or ground plane construction should be used for best results.
Fixed Regulator
Adjustable Regulator
Test Circuits and Layout Guidelines
Figure 1.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2576-5 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Easy Switcher 3.0A Step-Down Voltage Regulator |
| LM2576-5.0 | 制造商:FCI 制造商全称:First Components International 功能描述:SMIPLE SWITCHER 3.0A Step-Down Voltage Regulator |
| LM2576-5.0BT | 功能描述:IC REG BUCK 5V 3A TO220-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:20 系列:SIMPLE SWITCHER® 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:12V 输入电压:4 V ~ 60 V PWM 型:电压模式 频率 - 开关:52kHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 包装:管件 供应商设备封装:16-DIP 其它名称:*LM2575HVN-12LM2575HVN-12 |
| LM2576-5.0BT⒂ | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:52kHz Simple 3A Buck Voltage Regulator |
| LM2576-5.0BU | 功能描述:IC REG BUCK 5V 3A TO263-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:20 系列:SIMPLE SWITCHER® 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:12V 输入电压:4 V ~ 60 V PWM 型:电压模式 频率 - 开关:52kHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 包装:管件 供应商设备封装:16-DIP 其它名称:*LM2575HVN-12LM2575HVN-12 |
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