Texas Instruments' LM76002 and LM76003 regulators are easy-to-use synchronous step-down DC-DC converters capable of driving up to 2.5 A (LM76002) or 3.5 A (LM76003) of load current from an input up to 60 V. The LM76002 and LM76003 provide exceptional efficiency and output accuracy in a very small solution size. Peak current-mode control is employed. Additional features such as adjustable switching frequency, synchronization, FPWM option, power-good flag, precision enable, adjustable soft start, and tracking provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load and optional external bias improve efficiency. These devices require few external components and have a pinout designed for simple PCB layout with best-in-class EMI (CISPR22) and thermal performance. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and short-circuit protection. The LM76002 and LM76003 devices are available in the WQFN 30-pin leadless package with wettable flanks.
Features |
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- Integrated synchronous rectification
- Input voltage 3.5 V to 60 V (65 V max.)
- Output current:
- LM76002: 2.5 A
- LM76003: 3.5 A
- Output voltage 1 V to 95% VIN
- 15 µA quiescent current in regulation
- Wide voltage conversion range
- tON-MIN = 65 ns (typ.)
- tOFF-MIN = 95 ns (typ.)
- Create a custom design using the LM76002/LM76003 with the WEBENCH® Power Designer
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- System-level features
- Synchronization to external clock
- Power-good flag
- Precision enable
- Adjustable soft start (6.3 ms default)
- Voltage tracking capability
- Pin-selectable FPWM operation
- High-efficiency at light-load architecture (PFM)
- Protection features
- Cycle-by-cycle current limit
- Short-circuit protection with hiccup mode
- Overtemperature thermal shutdown protection
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Applications |
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- Telecommunications infrastructure
- Asset and fleet management systems
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- Video surveillance
- Programmable logic controllers
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