LM22679-Q1 Series
SIMPLE SWITCHER® 4.5V to 42V, 5A Step-Down Voltage Regulator with Adjustable Soft-Start & Current Li
Manufacturer: Texas Instruments
Catalog
SIMPLE SWITCHER® 4.5V to 42V, 5A Step-Down Voltage Regulator with Adjustable Soft-Start & Current Li
| Part | Grade | Frequency - Switching | Supplier Device Package | Voltage - Input (Max) [Max] | Output Configuration | Mounting Type | Voltage - Output (Min/Fixed) | Operating Temperature [Min] | Operating Temperature [Max] | Synchronous Rectifier | Package / Case | Current - Output | Voltage - Input (Min) [Min] | Qualification | Topology | Function | Number of Outputs | Output Type | Voltage - Output (Max) | Output Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Texas Instruments | Automotive | 500 kHz | TO-263-7 Thin | 42 V | Positive | Surface Mount | 5 V | -40 °C | 125 ¯C | TO-263-7 Thin | 5 A | 4.5 V | AEC-Q100 | Buck | Step-Down | 1 | 1.81 mOhm | |||
Texas Instruments | Automotive | 500 kHz | TO-263-7 Thin | 42 V | Positive | Surface Mount | 5 V | -40 °C | 125 ¯C | TO-263-7 Thin | 5 A | 4.5 V | AEC-Q100 | Buck | Step-Down | 1 | 1.81 mOhm | |||
Texas Instruments | 500 kHz | TO-263-7 Thin | 42 V | Positive | Surface Mount | 1.285 V | -40 °C | 125 ¯C | TO-263-7 Thin | 5 A | 4.5 V | Buck | Step-Down | 1 | 37 V | Adjustable | ||||
Texas Instruments | 500 kHz | TO-263-7 Thin | 42 V | Positive | Surface Mount | 5 V | -40 °C | 125 ¯C | TO-263-7 Thin | 5 A | 4.5 V | Buck | Step-Down | 1 | 1.81 mOhm | |||||
Texas Instruments | 500 kHz | TO-263-7 Thin | 42 V | Positive | Surface Mount | 5 V | -40 °C | 125 ¯C | TO-263-7 Thin | 5 A | 4.5 V | Buck | Step-Down | 1 | 1.81 mOhm | |||||
Texas Instruments | Automotive | 500 kHz | TO-263-7 Thin | 42 V | Positive | Surface Mount | 1.285 V | -40 °C | 125 ¯C | TO-263-7 Thin | 5 A | 4.5 V | AEC-Q100 | Buck | Step-Down | 1 | 37 V | Adjustable | ||
Texas Instruments | Automotive | 500 kHz | TO-263-7 Thin | 42 V | Positive | Surface Mount | 1.285 V | -40 °C | 125 ¯C | TO-263-7 Thin | 5 A | 4.5 V | AEC-Q100 | Buck | Step-Down | 1 | 37 V | Adjustable |
Key Features
• New product available:LM61460 3-V to 36-V, 6-A low EMI synchronous converterWide input voltage range: 4.5 V to 42 VInternally compensated voltage mode controlStable with low-ESR ceramic capacitors100-mΩ N-channel MOSFETOutput voltage options: -ADJ (outputs as low as 1.285 V) -5.0 (output fixed to 5 V)±1.5% feedback reference accuracySwitching frequency of 500 kHz–40°C to 125°C operating junction temperature rangeAdjustable soft startAdjustable current limitIntegrated bootstrap diodeFully WEBENCH enabledLM22679-Q1 is AEC-Q100 qualified and manufactured on an automotive-grade flowPFM (exposed pad) packageNew product available:LM61460 3-V to 36-V, 6-A low EMI synchronous converterWide input voltage range: 4.5 V to 42 VInternally compensated voltage mode controlStable with low-ESR ceramic capacitors100-mΩ N-channel MOSFETOutput voltage options: -ADJ (outputs as low as 1.285 V) -5.0 (output fixed to 5 V)±1.5% feedback reference accuracySwitching frequency of 500 kHz–40°C to 125°C operating junction temperature rangeAdjustable soft startAdjustable current limitIntegrated bootstrap diodeFully WEBENCH enabledLM22679-Q1 is AEC-Q100 qualified and manufactured on an automotive-grade flowPFM (exposed pad) package
Description
AI
The LM22679 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 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. 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 LM22679 device also has built-in thermal shutdown and current limiting to protect against accidental overloads.
The new product,LM61460, offers higher efficiency, lower stand-by quiescent current, and improved EMI performance. See thedevice comparison tableto compare.Start WEBENCH design with LM61460
The LM22679 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.
The LM22679 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 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. 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 LM22679 device also has built-in thermal shutdown and current limiting to protect against accidental overloads.
The new product,LM61460, offers higher efficiency, lower stand-by quiescent current, and improved EMI performance. See thedevice comparison tableto compare.Start WEBENCH design with LM61460
The LM22679 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.