The MIC2128 is a constant-frequency synchronous buck controllers featuring a unique adaptive ON-time control architecture. The MIC2128 operates over an input voltage range from 4.5V to 75V and can be used to supply load current up to 25A (Thermally Limited) . The output voltage is adjustable down to 0.6V with a guaranteed accuracy of ±1%. The device operates with programmable switching frequency from 270kHz to 800kHz.
The MIC2128 offers a full suite of protection features to ensure protection of the IC during fault conditions. These include undervoltage lockout to ensure proper operation under power-sag conditions, Adjustable soft-start to reduce inrush current, "hiccup" mode short-circuit protection, and thermal shutdown.
Additional Features
Hyper Speed Control® architecture enables:
4.5V to 75V input voltage
Adjustable output voltage from 0.6V to 30V
270kHz to 800kHz programmable switching frequency
Externally programmable soft start
Enable input and power good output
Built-in 5V regulator for single-supply operation
Auxiliary bootstrap LDO
Internal Bootstrap diode
Programmable current limit and "hiccup" mode short-circuit protection
Internal compensation, and thermal shutdown
Supports safe start-up into a pre-biased output
-40°C to +125°C junction temperature range
Available in 16-pin 3mm x 3mm QFN package
The MIC2128 is a constant-frequency synchronous buck controllers featuring a unique adaptive ON-time control architecture. The MIC2128 operates over an input voltage range from 4.5V to 75V and can be used to supply load current up to 25A (Thermally Limited) . The output voltage is adjustable down to 0.6V with a guaranteed accuracy of ±1%. The device operates with programmable switching frequency from 270kHz to 800kHz.
The MIC2128 offers a full suite of protection features to ensure protection of the IC during fault conditions. These include undervoltage lockout to ensure proper operation under power-sag conditions, Adjustable soft-start to reduce inrush current, "hiccup" mode short-circuit protection, and thermal shutdown.
Additional Features
- Hyper Speed Control® architecture enables:
- 4.5V to 75V input voltage
- Adjustable output voltage from 0.6V to 30V
- 270kHz to 800kHz programmable switching frequency
- Externally programmable soft start
- Enable input and power good output
- Built-in 5V regulator for single-supply operation
- Auxiliary bootstrap LDO
- Internal Bootstrap diode
- Programmable current limit and "hiccup" mode short-circuit protection
- Internal compensation, and thermal shutdown
- Supports safe start-up into a pre-biased output
- -40°C to +125°C junction temperature range
- Available in 16-pin 3mm x 3mm QFN package
