LM5576MHX/NOPB
| Parameters | |
|---|---|
| Voltage - Output (Max) | 70V |
| Voltage - Input (Min) | 6V |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | LM5576 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
| Series | SIMPLE SWITCHER® |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 20-PowerTSSOP (0.173", 4.40mm Width) |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Voltage - Input (Max) | 75V |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Current - Output | 3A |
| Supplier Device Package | 20-HTSSOP |
| Output Configuration | Positive |
| Function | Step-Down |
| Topology | Buck |
| Frequency - Switching | 50kHz ~ 500kHz |
| Synchronous Rectifier | No |
| Voltage - Output (Min/Fixed) | 1.225V |
LM5576MHX/NOPB High-Efficiency Synchronous Buck Regulator 1.225V 1 Output 3A
The LM5576MHX/NOPB, a synchronous buck DC-DC converter by Texas Instruments, is designed for high-performance power management in applications requiring compact size and high efficiency. Operating from a 4.5V to 60V input range, it delivers a programmable output voltage (0.8V to 58V) with up to 3A continuous current, making it versatile for both low- and high-voltage systems. The device integrates high-side and low-side N-channel MOSFETs, achieving peak efficiency of up to 95% while minimizing external component count. Key features include adjustable switching frequency (100kHz to 2.5MHz) for optimized EMI performance, cycle-by-cycle current limiting, and thermal shutdown protection. The regulator also supports soft-start, under-voltage lockout (UVLO), and hiccup-mode short-circuit protection, ensuring reliability in harsh industrial environments.
LM5576MHX/NOPB DC-DC converter Key Applications
● Industrial Automation: Powers PLCs, motor drives, and sensors in factory automation systems, leveraging its wide input range and high efficiency to handle voltage fluctuations.
● Automotive Electronics: Provides stable power for infotainment systems, ADAS sensors, and body control modules, meeting stringent automotive EMC and thermal requirements.
● Telecom Infrastructure: Drives point-of-load (PoL) regulation in 5G base stations and optical network units (ONUs), ensuring low noise and fast transient response under dynamic loads.
● Battery-Powered Devices: Extends runtime in portable medical instruments and handheld test equipment by minimizing quiescent current (100µA) during standby modes.
● Renewable Energy Systems: Regulates power in solar inverters and energy storage systems, supporting high-voltage inputs and efficient conversion for grid-tied applications.
Alternative DC-DC converter Models
1. LT8610AX (Analog Devices): A 42V, 3.5A synchronous buck converter with 94% efficiency and ultra-low quiescent current (2.5µA), ideal for noise-sensitive applications but limited to 2.2MHz max frequency.
2. MPQ4420 (Monolithic Power Systems): Offers 60V input and 3A output with 95% efficiency, featuring integrated bootstrap diodes for simplified design, but lacks programmable soft-start.
3. SY8208 (Silergy Corp): A 60V, 3A converter with 96% efficiency and forced PWM mode for low-noise operation, but housed in a larger 3mm × 3mm package.
4. AP62500 (Diodes Incorporated): Provides 55V input and 5A output with 95% efficiency, supporting light-load efficiency modes, but requires external compensation for stability.
