LM5576QMHX/NOPB
Active75V, 3A STEP-DOWN SWITCHING REGULATOR
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LM5576QMHX/NOPB
Active75V, 3A STEP-DOWN SWITCHING REGULATOR
Technical Specifications
Parameters and characteristics for this part
| Specification | LM5576QMHX/NOPB |
|---|---|
| Current - Output | 3 A |
| Frequency - Switching [Max] | 500 kHz |
| Frequency - Switching [Min] | 50 kHz |
| Function | Step-Down |
| Grade | Automotive |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | 20-PowerTSSOP |
| Package / Case | 0.173 in |
| Package / Case [custom] | 4.4 mm |
| Qualification | AEC-Q100 |
| Supplier Device Package | 20-HTSSOP |
| Synchronous Rectifier | False |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 75 V |
| Voltage - Input (Min) [Min] | 6 V |
| Voltage - Output (Max) [Max] | 70 V |
| Voltage - Output (Min/Fixed) | 1.225 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 4.90 | |
| 10 | $ 4.40 | |||
| 25 | $ 4.16 | |||
| 100 | $ 3.60 | |||
| 250 | $ 3.42 | |||
| 500 | $ 3.07 | |||
| 1000 | $ 2.59 | |||
| Digi-Reel® | 1 | $ 4.90 | ||
| 10 | $ 4.40 | |||
| 25 | $ 4.16 | |||
| 100 | $ 3.60 | |||
| 250 | $ 3.42 | |||
| 500 | $ 3.07 | |||
| 1000 | $ 2.59 | |||
| Tape & Reel (TR) | 2500 | $ 2.46 | ||
| Texas Instruments | LARGE T&R | 1 | $ 3.33 | |
| 100 | $ 2.92 | |||
| 250 | $ 2.04 | |||
| 1000 | $ 1.65 | |||
Description
General part information
LM5576-Q1 Series
The LM5576Q0 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 LM5576Q0 delivers 3A of continuous output current with an integrated 170mΩ 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 low-duty 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 LM5576Q0 ensures robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a power enhanced TSSOP-20 package featuring an exposed die attach pad for thermal dissipation. The LM5576Q0 is supported by the full suite of WEBENCH On-Line design tools.
The LM5576Q0 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 LM5576Q0 delivers 3A of continuous output current with an integrated 170mΩ 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 low-duty 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 LM5576Q0 ensures robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a power enhanced TSSOP-20 package featuring an exposed die attach pad for thermal dissipation. The LM5576Q0 is supported by the full suite of WEBENCH On-Line design tools.
Documents
Technical documentation and resources
