LM22678TJE-ADJ/NOPB Part Information
Details for LM22678TJE-ADJ/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
Part Description
The LM22678 switching regulator provides all of the functions necessary to implement an efficient highvoltage step-down (buck) regulator using a minimum of external components. This easy-to-use regulator incorporates a 42-V N-channel MOSFET switch that can provide up to 5 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. A precision enable input allows simplification of regulator control and system power sequencing. In shutdown mode the regulator draws only 25 µA (typical). Built-in soft-start (500 µs, typical) saves external components. The LM22678 device also has built-in thermal shutdown, and current limiting to protect against accidental overloads. The LM22678 device is a member of Texas Instruments' SIMPLE SWITCHER® family. The SIMPLE SWITCHER concept provides for an easy-touse 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
- Fully WEBENCHu00ae Enabled
- Integrated Boot-Strap Diode
- Integrated Soft-Start
- Internally Compensated Voltage Mode Control
- LM22678-Q1 is an Automotive-Grade Product that is AEC-Q100 Grade 1 Qualified (u201340u00b0C to +125u00b0C Operating Junction Temperature)
- Output Voltage Options: -ADJ (Outputs as Low as 1.285 V) -5.0 (Output Fixed to 5 V)
- PFM (Exposed Pad) Package
- Precision Enable Pin
- 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 | TO-263 |
| No. of Pins | 7Pins |
| Output Current | 5A |
| Output Voltage Min | 1.285V |
| Output Voltage Max | 37V |
| Switching Frequency | 500kHz |
| Operating Temperature Max | 125°C |
| Product Range | - |
| Automotive Qualification Standard | - |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (27-Jun-2018) |
| Adjustable Output Voltage Min | 1.285V |
| Base Number | 22678 |
| Frequency | 500kHz |
| Operating Temperature Min | -40°C |
| Operating Temperature Range | -40°C to +125°C |
| Primary Input Voltage | 42V |
| Supply Voltage Min | 4.7V |
| Termination Type | Surface Mount Device |
| Voltage Regulator Type | Step Down (Buck) |
Alternative Part Descriptions
- SIMPLE SWITCHER 5.0A,LM22678TJE-ADJ | RS Components
- STEP-DOWN REGULATOR, TO-263-7; Topology:Buck (Step Down); Input Voltage Min:4.5V; Input Voltage Max:42V; No. of Outputs:1Outputs; DC / DC Converter IC Case:TO-263 (D2PAK); No. of Pins:7Pins; Output Current:5A; Output Voltage Max:37V RoHS Compliant: Yes | Newark Electronics
- SIMPLE SWITCHER® 4.5V to 42V, 5A Step-Down Voltage Regulator with Precision Enable | Texas Instruments
- Switching Regulator IC [Texas Instruments] LM22678TJE-ADJ/NOPB Switching Regulator IC | Distrelec