All trademarks are the property of their respective owners.
DescriptionThe LM26420-Q1regulator is a monolithic, high-efficiency dual PWM step-down DC/DC converter. This device has theability to drive two 2-A loads with an internal 75-mΩ PMOS top switch and an internal 50-mΩ NMOSbottom switch using state-of-the-art BICMOS technology results in the best power density available.The world-class control circuitry allow on times as low as 30 ns, thus supporting exceptionallyhigh-frequency conversion over the entire 3-V to 5.5-V input operating range down to the minimumoutput voltage of 0.8 V.
Although the operating frequency is high, efficiencies up to 93% are easy to achieve.External shutdown is included, featuring an ultra-low standby current. The LM26420-Q1 utilizes current-modecontrol and internal compensation to provide high performance regulation over a wide range ofoperating conditions.
Because its switching frequency is ensured to be greater than 2 MHz, theLM26420-Q1 can be used in automotive applications without causing interference in the AM frequencyband.
Feature
- Qualified for automotive applications
- AEC Q100-Qualified With the Following Results:
- Device Temperature Grade 0 (Q0): –40°C to +150°C Ambient OperatingTemperature
- Device Temperature Grade 1 (Q1): –40°C to +125°C Ambient OperatingTemperature
- Compliant with CISPR25 Class 5 conductedemissions
- Input voltage range of 3 V to 5.5 V
- Output voltage range of 0.8 V to 4.5 V
- 2-A Output current per regulator
- Fixed 2.2-MHz switchingfrequency
- 0.8 V, 1.5% Internal voltage reference
- Internal soft start
- Independent power good and precision enable for each output
- Current mode, PWM operation
- Thermal shutdown
- Overvoltage protection
- Start-up into prebiased output loads
- Regulators are 180° out of phase
- Create a custom design using the LM26420-Q1 with theWEBENCH? Power Designer
All trademarks are the property of their respective owners.
DescriptionThe LM26420-Q1regulator is a monolithic, high-efficiency dual PWM step-down DC/DC converter. This device has theability to drive two 2-A loads with an internal 75-mΩ PMOS top switch and an internal 50-mΩ NMOSbottom switch using state-of-the-art BICMOS technology results in the best power density available.The world-class control circuitry allow on times as low as 30 ns, thus supporting exceptionallyhigh-frequency conversion over the entire 3-V to 5.5-V input operating range down to the minimumoutput voltage of 0.8 V.
Although the operating frequency is high, efficiencies up to 93% are easy to achieve.External shutdown is included, featuring an ultra-low standby current. The LM26420-Q1 utilizes current-modecontrol and internal compensation to provide high performance regulation over a wide range ofoperating conditions.
Because its switching frequency is ensured to be greater than 2 MHz, theLM26420-Q1 can be used in automotive applications without causing interference in the AM frequencyband.
