方案
按技术分类
Converters | NCV2575
概览
LM2575 系列降压开关稳压器是单片集成电路，适用于步降开关稳压器（降压转换器）的简便设计。此系列的所有电路都可以驱动 1.0 A 负载，且具有卓越的线路和负载调节。此类器件提供 3.3 V、5.0 V、12 V、15 V 固定输出电压和可调输出版本。此降压开关稳压器适用于最大程度减少外部部件数量，可简化电源设计。适用于 LM2575 的标准电感器系列由若干不同电感器制造商提供。因为 LM2575 转换器是一款开关模式电源，其能效比受欢迎的三端子线性稳压器要高很多，尤其对于更高输入电压更是如此。在很多情况下，LM2575 稳压器的功耗非常低，以至于无需进行散热，或者其尺寸可以大幅减小。LM2575 功能包括指定输入电压和输出负载条件下保证输出电压的 4% 允差范围，振荡器频率为 +/-10%（0C 至 125C 范围为 +/-2%）。包含了外部关断，典型待机电流为 80 uA。输出开关包括按循环的电流限制以及高温关断，实现故障条件下的完整保护。
应用
- Simple and High-Efficiency Step-Down (Buck) Regulators
- Efficient Pre-Regulator for Linear Regulators
- On-Card Switching Regulators
- Positive to Negative Converters (Buck-Boost)
- Negative Step-Up Converters
- Power Supply for Battery Chargers
特性
- 3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions
- Adjustable Version Output Voltage Range of 1.23 V to 37 V +/-4%
Maximum Over Line and Load Conditions - Guaranteed 1.0 A Output Current
- Wide Input Voltage Range: 4.75 V to 40 V
- Requires Only 4 External Components
- 52 kHz Fixed Frequency Internal Oscillator
- TTL Shutdown Capability, Low Power Standby Mode
- High Efficiency
- Uses Readily Available Standard Inductors
- Thermal Shutdown and Current Limit Protection
- Moisture Sensitivity Level (MSL) Equals 1
- Pb-Free Packages are Available
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NCV2575D2T-12R4G
Last Shipments
Pb
A
H
P
D2PAK-5
1
260
REEL
800
N
Step-Down
Current/Voltage Mode
4.75
40
12
1
85
52
Price N/A
More Details
NCV2575D2T-5R4G
Last Shipments
Pb
A
H
P
D2PAK-5
1
260
REEL
800
N
Step-Down
Current/Voltage Mode
4.75
40
5
1
85
52
Price N/A
More Details
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