Microchip MIC24046-H Pin-programmable, Step-Down Converter- InactiveMicrochip Technology MIC24046-H is a high efficiency (>90 percent peak), pin-programmable 5A step-down, synchronous DC/DC converter. MIC24046-H offers pin-selectable output voltage, switching frequency, and current limit settings designed to improve design flexibility and eliminate multiple external components. Available in a 20-pin, 3mm x 3mm QFN package with a junction temperature range of -40°C to +125°C, the MIC24046-H step-down DC/DC converter is well-suited for end-equipment such as network switches/routers, servers, storage, base stations, FPGA and DSP power as well as factory automation and security cameras.
The device operates over a wide input voltage range of 4.5V to 19V, making the MIC24046-H ideal for distributed 12V point-of-load applications. MIC24046-H provides three settings for switching frequency (400kHz, 565kHz, and 790kHz), and designers can select the output voltage from 0.7V to 3.3V via nine different settings. An internal divider is used for true 1 percent VOUT accuracy setting from 0.7V to 1.2V. Designers can select the current limit to support three application requirements (3A, 4A, and 5A). Additional features include hiccup-mode short circuit protection, internal soft-start, safe pre-biased start-up, and thermal shutdown.
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Features
- 4.V to 19V input voltage range
- Pin-selectable output voltages
- 0.7V,0.8V,0.9V,1.0V,1.2V,1.5V,1.8V,2.5V, and 3.3V
- ±1% output voltage accuracy
- Supports safe start-up with pre-biased output
- Pin-selectable current limit and switching frequency
- Internal soft-start and thermal shutdown protection
- Hiccup-mode short-circuit protection
- Available in a 20-pin 3mm x 3mm QFN package
- Junction temperature range of -40°C to +125°C
Applications
- Network switches/routers, servers, storage, base stations
- FPGA and DSP power , and low-voltage ASIC power
- Factory automation
- Security cameras
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