LM5574MTX 75V 0.5A Electronic IC Chips , Step Down Switching Regulator integrated semiconductor
electronic integrated circuit
,digital integrated circuits
LM5574MTX 75V 0.5A Electronic IC Chips , Step Down Switching Regulator integrated semiconductor
Stock List
| TPS2041BDBVR | 5000 | TI | 14+ | SOT23-5 |
| TPS5430DDAR | 5000 | TI | 16+ | SOP8 |
| UCLAMP0511P TCT | 5000 | SEMTECH | 16+ | MICREL |
| ULN2003ADRG3 | 5000 | TI | 15+ | SOP16 |
| SN75C1406N | 5002 | TI | 16+ | SOP-16 |
| B340A-13-F | 5008 | DOIDES | 15+ | SMA |
| REG1117-3.3 | 5008 | BB | 12+ | SOT223 |
| SST25VF032B-80-4I-S2AF | 5010 | SST | 16+ | SOP8 |
| TPS79730DCKR | 5018 | TI | 12+ | SC70-5 |
| 2SC3355 | 5100 | NEC | 16+ | TO-92 |
| DAC0808LCN | 5100 | NSC | 16+ | DIP16 |
| FDS4435 | 5100 | FAIRCHILD | 16+ | SOP-8 |
| LT1963EST-2.5 | 5100 | LT | 16+ | SOT-223 |
| X5045P | 5100 | XICOR | 16+ | DIP8 |
| DAC7554IDGS | 5110 | TI | 14+ | MSOP-10 |
| AM26LV32IDR | 5120 | TI | 16+ | SOP16 |
| CS51412EDR8G | 5120 | ON | 16+ | SOP8 |
| LM2940T-12 | 5120 | NS | 15+ | TO-220 |
| LM6132BIMX | 5120 | NS | 16+ | SOP8 |
| RC5057M | 5120 | FAIRCHILD | 15+ | SOP16 |
| SN75ALS180DR | 5120 | TI | 12+ | SOP-14 |
| UGN3503UA | 5120 | ALLEGRO | 16+ | TO-92 |
| BD241C | 5123 | FSC | 12+ | TO-220 |
| 25LC640-I/SN | 5200 | MICROCHIP | 16+ | SOP-8 |
| 60CTQ150PBF | 5200 | VISHAY | 16+ | TO-220 |
| 74HC4051D | 5200 | 16+ | SOP-16 | |
| 74LS08 | 5200 | TI | 16+ | SOP-14 |
| BC516 | 5200 | PHILIPS | 16+ | TO-92 |
| BGA614 | 5200 | 14+ | SOT-343 | |
| BYT11-600 | 5200 | ST | 16+ | DO-201 |
| CNY17F-3 | 5200 | VISHAY | 16+ | DIP6 |
| DS1307Z | 5200 | DALLAS | 15+ | SOP-8 |
| EN25F80-100QCP | 5200 | CFEON | 16+ | DIP8 |
| GBPC3504A | 5200 | VISHAY | 15+ | BOX |
| IRS2153DSTR | 5200 | IR | 12+ | SOP-8 |
| LM2592HVS | 5200 | NS | 16+ | TO-263 |
| LM317S | 5200 | NS | 12+ | TO-263 |
| NL17SZ07DFT | 5200 | ON | 16+ | SOT-353 |
| UC2844D | 5200 | TI | 16+ | SOP14 |
| HD14070BP | 5201 | HITACHI | 16+ | DIP14 |
| BC807 | 5210 | 16+ | SOT-23 | |
| K2718 | 5210 | TOSHIBA | 16+ | TO-220 |
| LM2576T-ADJ | 5210 | NSC | 14+ | TO-220 |
| UC3854DW | 5210 | TI | 16+ | SOP16 |
| L7909 | 5212 | ST | 16+ | TO-220 |
| LD1117S33CTR | 5215 | VISHAY | 15+ | SOT223 |
| PS2805-4 | 5250 | NEC | 16+ | SOP16 |
| X28HC64P-90 | 5292 | XICOR | 15+ | DIP |
| 74HC02 | 5300 | TI | 12+ | SOP-14 |
| ACM2012-900-2P | 5300 | TDK | 16+ | SMD |
| AD1582BRT | 5322 | AD | 12+ | SOT23 |
| LM35DM | 5331 | NS | 16+ | SOP8 |
LM5574MTX
75V, 0.5A Step-Down Switching Regulator integrated semiconductor
Features
■ Integrated 75V, 750mΩ N-channel MOSFET
■ Ultra-wide input voltage range from 6V to 75V
■ Adjustable output voltage as low as 1.225V
■ 1.5% feedback reference accuracy
■ Operating frequency adjustable between
50kHz and 500kHz with single resistor
■ Master or slave frequency synchronization
■ Adjustable soft-start
■ Emulated current mode control architecture
■ Wide bandwidth error amplifier
■ Built-in protection
General Description
The LM5574 is an easy to use SIMPLE SWITCHER® buck regulator which allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6 - 75V, the LM5574 delivers 0.5A of continuous output current with an integrated 750mΩ N-Channel MOSFET. The regulator utilizes an Emulated Current Mode architecture which provides inherent line regulation, tight load transient response, and ease of loop compensation without the usual limitation of lowduty cycles associated with current mode regulators. The operating frequency is adjustable from 50kHz to 500kHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple IC’s from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM5574 guarantees robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a TSSOP-16 package. The LM5574 is supported by the full suite of WEBENCH® On-Line design tools.
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