Analog Devices Inc. LT8653S Dual Step-Down Regulators
Analog Devices Inc. LT8653S Dual Step-Down Regulators deliver up to 2A of continuous current from both channels and support loads up to 3A. The LT8653S devices feature the second-generation Silent Switcher®2 architecture to minimize EMI emissions. The regulators deliver high efficiency at high switching frequencies. This includes integrating bypass capacitors to optimize high-frequency current loops. By eliminating layout sensitivity, it's easy to achieve the advertised EMI performance.
Features
- Silent Switcher 2 architecture
- Ultralow EMI on any PCB
- Eliminates PCB layout sensitivity
- Internal bypass capacitors reduce radiated EMI
- Optional spread spectrum modulation
- 2A DC from each channel simultaneously
- Up to 3A on either channel
- Ultralow quiescent current Burst Mode® operation
- 6.2μA IQ regulating 12VIN to 5VOUT1 and 3.3VOUT2
- Output ripple of <10mVP–P
- Optional external VC pin with a fast transient response
- Forced continuous mode
- High efficiency at high frequency
- 94.1% efficiency at 1A, 5VOUT from 12VIN at 2MHz
- 5V, 3.3V, and 1.8V pin-selectable fixed output voltages
- Fast 30ns minimum switch-on time
- Wide 3.0V to 42V input voltage range
- Adjustable and synchronizable from 300kHz to 3MHz
- Fixed output pin strap options
- Internal 2MHz fSW with fast internal compensation
- Small 4mm x 3mm 20-pin LQFN package
- AEC-Q100 qualified for automotive applications
Applications
- General purpose step-down
- Automotive supplies
- Industrial supplies
Videos
TYPICAL APPLICATION
Design Note
Meet the demanding power requirements of automotive and industrial environments.
The LT8653S is a dual-channel, 2A, monolithic, synchronous step-down regulator with a 3V to 42V input voltage range. Silent Switcher® 2 technology enables the LT8653S to simultaneously operate at high frequency and high efficiency with exceptional EMI performance.
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Dual step-down regulator that delivers up to 8.5A of continuous current from both channels.
Opublikowano: 2020-02-03
| Zaktualizowano: 2024-09-03