Overview
The LM76002RNPR, part of the LM76002/LM76003 series, is a high-performance synchronous step-down DC-DC converter produced by Texas Instruments. This device is designed to handle a wide input voltage range of 3.5 V to 60 V (with a maximum of 65 V) and can deliver an output current of up to 2.5 A. It is known for its exceptional efficiency, output accuracy, and compact solution size, making it ideal for various industrial and commercial applications.
The LM76002RNPR features integrated synchronous rectification, peak current-mode control, and a range of system-level features such as synchronization to an external clock, power-good flag, precision enable, adjustable soft-start, and voltage tracking capability. The device is available in a WQFN 30-pin leadless package with wettable flanks, ensuring good thermal performance and ease of PCB layout.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage (PVIN to PGND) | 3.5 | - | 65 | V |
| Output Current (IOUT) | 0 | - | 2.5 | A |
| Output Voltage (VOUT) | 1 | - | 95% of VIN | V |
| Quiescent Current in Regulation | - | 15 µA | - | µA |
| Minimum Switch On-Time (tON-MIN) | 65 | 95 | - | ns |
| Minimum Switch Off-Time (tOFF-MIN) | 95 | 130 | - | ns |
| Internal Oscillator Frequency (fOSC) | 440 | 500 | 560 | kHz |
| Junction Temperature (TJ) | -40 | - | 150 | °C |
Key Features
- Integrated synchronous rectification for high efficiency.
- Wide input voltage range: 3.5 V to 60 V (65 V maximum).
- Output current up to 2.5 A for LM76002 and 3.5 A for LM76003.
- Output voltage adjustable from 1 V to 95% of VIN.
- Adjustable switching frequency: 300 kHz to 2.2 MHz.
- Synchronization to external clock and pin-selectable FPWM operation.
- Precision enable, adjustable soft-start, and voltage tracking capability.
- Protection features include cycle-by-cycle current limit, short-circuit protection with hiccup mode, and overtemperature thermal shutdown protection.
- High-efficiency at light-load architecture (PFM) and automatic frequency foldback.
- Compact WQFN 30-pin leadless package with wettable flanks for good thermal performance.
Applications
- Telecommunications infrastructure.
- Asset and fleet management systems.
- Video surveillance systems.
- Programmable logic controllers (PLCs).
Q & A
- What is the input voltage range of the LM76002RNPR?
The input voltage range is from 3.5 V to 60 V, with a maximum of 65 V.
- What is the maximum output current of the LM76002RNPR?
The maximum output current is 2.5 A.
- What is the adjustable output voltage range?
The output voltage is adjustable from 1 V to 95% of the input voltage (VIN).
- Does the LM76002RNPR support synchronization to an external clock?
- What are the key protection features of the LM76002RNPR?
The key protection features include cycle-by-cycle current limit, short-circuit protection with hiccup mode, and overtemperature thermal shutdown protection.
- What is the typical quiescent current in regulation?
The typical quiescent current in regulation is 15 µA.
- What is the package type of the LM76002RNPR?
The device is available in a WQFN 30-pin leadless package with wettable flanks.
- What are some common applications of the LM76002RNPR?
- Does the LM76002RNPR support adjustable switching frequency?
- What is the junction temperature range of the LM76002RNPR?
