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LM5176是一款同步4开关降压/升压直流/直流控制器,能够将输出电压稳定在等于,高于或低于输入电压的某一电压值上.LM5176在4.2V至55V(最大绝对值为60V)的宽输入电压范围内工作,可支持各种不同的应用。
LM5176在降压和升<工作模式下均采用电流模式控制,以提供出色的负载调节率和线性调节率。
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,LM5176采用可选的平均输入或输出电流限制,用于减少峰值EMI的可选扩频,以及持续过载情况下的可选间断模式保护。
所有商标均为其各自所有者的财产。
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 |
LM5176 | LM25118 | LM5118 | LM5175 | LM5175-Q1 |
---|---|---|---|---|
Buck/Boost | Buck/Boost | Buck/Boost | Buck/Boost | Buck/Boost |
4 | 3 | 3 | 3.5 | 3.5 |
55 | 42 | 75 | 42 | 42 |
0.8 | 1.23 | 1.23 | 0.8 | 0.8 |
55 | 38 | 70 | 55 | 55 |
20 | 4 | 4 | 20 | 20 |
100 | 98 | 98 | 100 | 100 |
100 | 50 | 50 | 100 | 100 |
600 | 500 | 500 | 600 | 600 |
1.65 | 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 | 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 |
10 | 10 | 20 | 20 | |
-40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
Catalog | Catalog | Catalog | Catalog | Automotive |
HTSSOP | HTSSOP | HTSSOP | HTSSOP VQFN | HTSSOP |