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LM5175是一款同步四开关降压 - 升压DC /DC控制器,能够输出电压稳定在输入电压,高于输入电压或者低于输入电压的某一电压值上.LM5175具有3.5V至42V的宽输入电压范围(最大值为60V),支持各类应用。
LM5175在降压和升压工作模式<_ p>
该器件还具有可编程的软启动功能,并且提供诸如逐周期电流限制,输入欠压锁定(UVLO),输出过压保护(OVP)和热关断等各类保护特性。此外,LM5175特有可选择的连续导通模式(CCM)或断续导通模式(DCM),可选平均输入或输出电流限制,可降低峰值电磁干扰(EMI)的可选扩展频谱,以及应对持续过载情况的可选断续模式保护。
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所有商标均为各自所有者的财产。
Topology |
Vin (Min) (V) |
Vin (Max) (V) |
Vout (Min) (V) |
Vout (Max) (V) |
Switch Current Limit (Min) (A) |
Duty Cycle (Max) (%) |
Switching Frequency (Min) (kHz) |
Switching Frequency (Max) (kHz) |
Iq (Typ) (mA) |
Features |
Iout (Max) (A) |
Operating Temperature Range (C) |
Rating |
Package Group |
LM5175 | LM25118 | LM25118-Q1 | LM5118 | LM5175-Q1 | LM5176 |
---|---|---|---|---|---|
Buck/Boost | Buck/Boost | Buck/Boost | Buck/Boost | Buck/Boost | Buck/Boost |
3.5 | 3 | 3 | 3 | 3.5 | 4 |
42 | 42 | 42 | 75 | 42 | 55 |
0.8 | 1.23 | 1.23 | 1.23 | 0.8 | 0.8 |
55 | 38 | 38 | 70 | 55 | 55 |
20 | 4 | 4 | 4 | 20 | 20 |
100 | 98 | 98 | 98 | 100 | 100 |
100 | 50 | 50 | 50 | 100 | 100 |
600 | 500 | 500 | 500 | 600 | 600 |
1.65 | 4.5 | 4.5 | 4.5 | 1.65 | 1.65 |
Adjustable Current Limit Enable Frequency Synchronization Power Good Pre-Bias Start-Up Synchronous Rectification UVLO Adjustable | Enable Frequency Synchronization | Enable Frequency Synchronization | Enable Frequency Synchronization | Adjustable Current Limit Enable Frequency Synchronization Power Good Pre-Bias Start-Up Synchronous Rectification UVLO Adjustable | Adjustable Current Limit Enable Frequency Synchronization Power Good Pre-Bias Start-Up Synchronous Rectification UVLO Adjustable |
20 | 10 | 10 | 10 | 20 | |
-40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
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HTSSOP VQFN | HTSSOP | HTSSOP | HTSSOP | HTSSOP | HTSSOP |