Overview
The LM46002PWPR is a synchronous step-down DC/DC converter produced by Texas Instruments. This device is part of the SIMPLE SWITCHER family and is designed to drive up to 2 A of load current from an input voltage ranging from 3.5 V to 60 V. It offers exceptional efficiency, output accuracy, and a small solution size, making it suitable for a wide range of applications. The LM46002PWPR is available in a 16-lead HTSSOP package, measuring 6.6 mm × 5.1 mm × 1.2 mm, with a 0.65-mm lead pitch.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 3.5 V to 60 V |
| Output Current | Up to 2 A |
| Output Voltage Range | 1 V to 28 V |
| Switching Frequency Range | 200 kHz to 2.2 MHz (default 500 kHz) |
| Package Type | 16-lead HTSSOP |
| Package Dimensions | 6.6 mm × 5.1 mm × 1.2 mm |
| Lead Pitch | 0.65 mm |
| Efficiency | High efficiency at light load (DCM and PFM) |
| EMI Compliance | Meets EN55022/CISPR 22 standards |
| Protection Features | Thermal shutdown, VCC undervoltage lockout, cycle-by-cycle current limit, output short-circuit protection |
Key Features
- Integrated synchronous rectification
- Adjustable frequency range: 200 kHz to 2.2 MHz (default 500 kHz)
- Frequency synchronization to external clock
- Internal compensation
- Stable with various types of capacitors (ceramic, polymer, tantalum, aluminum)
- Power-good flag
- Soft start into prebiased load with internal and extendable soft-start time
- Output voltage tracking capability
- Precision enable to program system UVLO
- Output short-circuit protection with hiccup mode
- Overtemperature thermal shutdown protection
Applications
- Industrial power supplies
- Telecommunications systems
- Sub-AM band automotive systems
- Commercial vehicle power supplies
- General-purpose wide VIN regulation
- High-efficiency point-of-load regulation
Q & A
- What is the input voltage range of the LM46002PWPR?
The input voltage range is from 3.5 V to 60 V. - What is the maximum output current of the LM46002PWPR?
The maximum output current is up to 2 A. - What is the default switching frequency of the LM46002PWPR?
The default switching frequency is 500 kHz. - Does the LM46002PWPR meet any EMI standards?
Yes, it meets EN55022/CISPR 22 EMI standards. - What are the key protection features of the LM46002PWPR?
The key protection features include thermal shutdown, VCC undervoltage lockout, cycle-by-cycle current limit, and output short-circuit protection. - Can the LM46002PWPR be used in automotive systems?
Yes, it can be used in sub-AM band automotive systems. - What is the package type and dimensions of the LM46002PWPR?
The package type is 16-lead HTSSOP, and the dimensions are 6.6 mm × 5.1 mm × 1.2 mm. - Does the LM46002PWPR support frequency synchronization?
Yes, it supports frequency synchronization to an external clock. - What types of capacitors are stable with the LM46002PWPR?
The device is stable with ceramic, polymer, tantalum, and aluminum capacitors. - Is there a power-good flag feature in the LM46002PWPR?
Yes, the device includes a power-good flag feature.
