3.5V to 60V, 3.5A Synchronous Step-Down Voltage Converter
Product details
Parameters
Package | Pins | Size
Features
- Integrated synchronous rectification
- Input voltage 3.5 V to 60 V (65 V maximum)
- 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 (typical)
- tOFF-MIN = 95 ns (typical)
- 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
- Adjustable frequency range: 300 kHz to 2.2 MHz
- High-efficiency at light-load architecture (PFM)
- Protection features
- Cycle-by-cycle current limit
- Short-circuit protection with hiccup mode
- Overtemperature thermal shutdown protection
- Create a custom design using the LM76002/LM76003 with the WEBENCH® Power Designer
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Description
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 input undervoltage lockout, thermal shutdown, 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.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | LM76002/LM76003 3.5-V to 60-V, 2.5-A/3.5-A Synchronous Step-Down Voltage Regulator datasheet (Rev. A) | Sep. 05, 2019 |
Selection guide | Buck Converter Quick Reference Guide (Rev. B) | Apr. 08, 2021 | |
Technical article | Minimize the impact of the MLCC shortage on your power application | Mar. 29, 2019 | |
Technical article | Top three qualities to consider when designing a video doorbell power supply | Sep. 25, 2018 | |
Application note | Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems | Sep. 10, 2018 | |
Technical article | Effects of IC package on EMI performance | May 22, 2018 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- High Efficiency at light load
- Synchronous Rectification
- Internal Compensation
- Frequency Synchronization
- Auto Mode or FPWM mode
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
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Reference designs
Design files
Design files
Design files
-
download TIDA-010076 BOM.pdf (375KB) -
download TIDA-010076 Assembly Drawing.pdf (626KB) -
download TIDA-010076 PCB.pdf (4302KB) -
download TIDA-010076 CAD Files.zip (7364KB) -
download TIDA-010076 Gerber.zip (823KB)
Design files
-
download TIDA-010055 BOM Files.zip (310KB) -
download TIDA-010055 Assembly Files.zip (827KB) -
download TIDA-010055 Layer Plots.zip (2674KB) -
download TIDA-010055 CAD Files.zip (9038KB) -
download TIDA-010055 Gerber.zip (1157KB)
Design files
-
download PMP15026 BOM.pdf (26KB) -
download PMP15026 Assembly Files.zip (692KB) -
download PMP15026 PCB.pdf (691KB) -
download PMP15026 CAD Files.zip (807KB) -
download PMP15026 Gerber.zip (538KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
WQFN (RNP) | 30 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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