LM22673MRE-ADJ/NOPB Part Information
Details for LM22673MRE-ADJ/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
Part Description
The LM22673 switching regulator provides all of the functions necessary to implement an efficient high voltage step-down (buck) regulator using a minimum of external components. This easy to use regulator incorporates a 42 V N-channel MOSFET switch capable of providing up to 3 A of load current. Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control offers short minimum on-time, allowing the widest ratio between input and output voltages. Internal loop compensation means that the user is free from the tedious task of calculating the loop compensation components. Fixed 5 V output and adjustable output voltage options are available. A switching frequency of 500 kHz allows for small external components and good transient response. An adjustable soft-start feature is provided through the selection of a single external capacitor. In addition, the switch current limit can be programmed with a single external resistor, allowing solution optimization. The LM22673 device also has built-in thermal shutdown, and current limiting to protect against accidental overloads. The LM22673 device is a member of Texas Instruments' SIMPLE SWITCHER® family. The SIMPLE SWITCHER® concept provides for an easy to use complete design using a minimum number of external components and the TI WEBENCH® design tool. TI's WEBENCH® tool includes features such as external component calculation, electrical simulation, thermal simulation, and Build-It boards for easy design-in.
Part Downloads
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Part Features
- 100 mu2126 N-Channel MOSFET SO PowerPAD Package
- 120 mu2126 N-Channel MOSFET PFM Package
- Adjustable Current Limit
- Adjustable Soft-Start
- Fully Webenchu00ae Enabled
- Integrated Boot-Strap Diode
- Internally Compensated Voltage Mode Control
- LM22673-Q1 is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (u201340u00b0C to +125u00b0C Junction Temperature)
- Output Voltage Options: -ADJ (Outputs as Low as 1.285 V) -5.0 (Output Fixed to 5 V)
- PFM (Exposed Pad)
- SO PowerPAD (Exposed Pad)
- Stable with Low ESR Ceramic Capacitors
- Switching Frequency of 500 kHz
- Wide Input Voltage Range: 4.5 V to 42 V
- u00b11.5% Feedback Reference Accuracy
- u201340u00b0C to 125u00b0C Operating Junction Temperature Range
Part Specifications
| Topology | Buck (Step Down) |
| Input Voltage Min | 4.5V |
| Input Voltage Max | 42V |
| No. of Outputs | 1Outputs |
| DC / DC Converter IC Case | SOIC |
| No. of Pins | 8Pins |
| Output Current | 3A |
| Output Voltage Min | 1.285V |
| Output Voltage Max | 37V |
| Switching Frequency | 500kHz |
| Operating Temperature Max | 125°C |
| Product Range | - |
| Automotive Qualification Standard | - |
| RoHS Phthalates Compliant | Yes |
| MSL | MSL 3 - 168 hours |
| SVHC | No SVHC (27-Jun-2018) |
| Accuracy % | 1.5% |
| Adjustable Output Voltage Max | 1.311V |
| Adjustable Output Voltage Min | 1.259V |
| Base Number | 22673 |
| Frequency | 500kHz |
| Operating Temperature Min | -40°C |
| Operating Temperature Range | -40°C to +125°C |
| Output Current Max | 3A |
| Primary Input Voltage | 42V |
| Supply Voltage Min | 4.5V |
| Supply Voltage Typ | 12V |
| Switch Output Current Isw Max | 5.5A |
| Termination Type | Surface Mount Device |
| Voltage Regulator Type | Step Down (Buck) |
Alternative Part Descriptions
- SIMPLE SWITCHER® 4.5V to 42V, 3A Step-Down Voltage Reg. with Adjustable Soft-Start and Current Limit | Texas Instruments