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MIC24046 Datasheet, PDF (1/27 Pages) Micrel Semiconductor – Pin-Programmable, 4.5V − 19V, 5A Step-Down Converter | |||
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MIC24046
Pin-Programmable, 4.5V â 19V, 5A
Step-Down Converter
General Description
The MIC24046 is a pin-programmable, highâefficiency,
wide input range, 5A synchronous step-down regulator.
The MIC24046 is perfectly suited for multiple-voltage rail
application environments typically found in computing and
telecommunication systems. It can be programmed by pin
strapping various parameters, such as output voltage,
switching frequency, and current-limit values. The pin-
selectable switching frequency, valley-current mode
control technique, highâperformance error amplifier, and
external compensation allow for the best trade-offs
between high efficiency and the smallest possible solution
size.
The MIC24046 is available in a thermallyâefficient, space-
saving, 20âpin 3mm à 3mm QFN package with an
operating junction temperature range of â40°C to +125°C.
Datasheets and support documentation are available on
Micrelâs website at: www.micrel.com.
Features
⢠4.5V to 19V input voltage range
⢠5A (maximum) output current
⢠High efficiency (>90%)
⢠Pin-selectable output voltages:
â 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 à 3mm QFN package
⢠â40°C to +125°C junction temperature range
Applications
⢠Servers, data storage, routers, and base stations
⢠FPGAs, DSP, and low-voltage ASIC power
Typical Application
MIC24046 12VIN 5A DC/DC Converter
Micrel Inc. ⢠2180 Fortune Drive ⢠San Jose, CA 95131 ⢠USA ⢠tel +1 (408) 944-0800 ⢠fax + 1 (408) 474-1000 ⢠http://www.micrel.com
October 14, 2015
Revision 1.1
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