The LM76002/LM76003 regulator is an easy-to-use synchronous step-down DC-DC converter 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/LM76003 provides 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. This device requires few external components and has 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/LM76003 device is available in the WQFN
30-pin leadless package with wettable flanks.
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| Vin (Min) (V) |
| Vin (Max) (V) |
| Vout (Min) (V) |
| Vout (Max) (V) |
| Iout (Max) (A) |
| Regulated Outputs (#) |
| Switching Frequency (Min) (kHz) |
| Switching Frequency (Max) (kHz) |
| Iq (Typ) (mA) |
| Features |
| Control Mode |
| Duty Cycle (Max) (%) |
| Operating Temperature Range (C) |
| Rating |
| Package Group |
| Type |
| LM76002 | LM46001 | LM46002 | LM5160A | LM76003 | LMR16020 | LMR16030 | LMR36015 | TPS54260 |
|---|---|---|---|---|---|---|---|---|
| 3.5 | 3.5 | 3.5 | 4.5 | 3.5 | 4.3 | 4.3 | 4.2 | 3.5 |
| 60 | 60 | 60 | 65 | 60 | 60 | 60 | 60 | 60 |
| 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 0.8 |
| 57 | 28 | 28 | 60 | 57 | 50 | 50 | 57 | 58 |
| 2.5 | 1 | 2 | 2 | 3.5 | 2 | 3 | 1.5 | 2.5 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 300 | 200 | 200 | 50 | 300 | 200 | 200 | 400 | 100 |
| 2200 | 2200 | 2200 | 1000 | 2200 | 2500 | 2500 | 1000 | 2500 |
| 0.015 | 0.024 | 0.027 | 2.3 | 0.015 | 0.04 | 0.04 | 0.023 | 0.138 |
|
Enable Forced Pulse Width Modulation (FPWM) Mode Frequency Synchronization Light Load Efficiency Power Good Synchronous Rectification Wettable Flanks Package |
Enable Frequency Synchronization Light Load Efficiency Power Good Synchronous Rectification Tracking UVLO Adjustable |
Enable Frequency Synchronization Light Load Efficiency Power Good Synchronous Rectification Tracking |
Enable Light Load Efficiency Pre-Bias Start-Up Synchronous Rectification UVLO Adjustable |
Enable Forced Pulse Width Modulation (FPWM) Mode Frequency Synchronization Light Load Efficiency Power Good Synchronous Rectification Wettable Flanks Package |
Enable Frequency Synchronization Light Load Efficiency Power Good Pre-Bias Start-Up Tracking UVLO Adjustable |
Enable Frequency Synchronization Light Load Efficiency Power Good Pre-Bias Start-Up Tracking UVLO Adjustable |
Enable Forced Pulse Width Modulation (FPWM) Mode Light Load Efficiency Power Good Pre-Bias Start-Up Synchronous Rectification Wettable Flanks Package |
Enable Frequency Synchronization Light Load Efficiency Power Good Tracking UVLO Adjustable |
| Current Mode | Current Mode | Current Mode | Constant on-time (COT) | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode |
| 99 | 99 | 92 | 98 | 98 | 98 | 98 | ||
| -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 150 | -40 to 125 |
| Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| WQFN | 30 |
