The MIC28510 is an adjustable frequency, synchronous buck regulator featuring unique adaptive on-time control architecture. The MIC28510 operates over an input supply range of 4.5V to 75V and provides a regulated output of up to 4A of output current. The output voltage is adjustable down to 0.8V with a guaranteed accuracy of ±1%.
Hyper Speed Control™ architecture allows for ultra-fast transient response while reducing the output capacitance and also makes (High VIN) / (Low VOUT) operation possible. This adaptive tON ripple control architecture combines the advantages of fixed-frequency operation and fast transient response in a single device.
The MIC28510 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, internal soft-start to reduce inrush current, foldback current limit, "hiccup" mode short circuit protection, and thermal shutdown.
Additional Features
Hyper Speed Control™ architecture enables
High delta V operation (VIN = 75V and VOUT = 0.8V)
Small output capacitance
4.5V to 75V voltage input
4A output current capability, up to 95% efficiency
Adjustable output voltage form 0.8V to 24V
≤1% FB accuracy
Any Capacitor™ stable
Zero-ESR to high ESR output capacitors
100kHz to 500kHz switching frequency
Internal compensation
Foldback current limit and "hiccup" mode short-circuit protection
Thermal shutdown
Supports safe startup into a pre-biased load
-40°C to +125°C junction temperature range
The MIC28510 is an adjustable frequency, synchronous buck regulator featuring unique adaptive on-time control architecture. The MIC28510 operates over an input supply range of 4.5V to 75V and provides a regulated output of up to 4A of output current. The output voltage is adjustable down to 0.8V with a guaranteed accuracy of ±1%.
Hyper Speed Control™ architecture allows for ultra-fast transient response while reducing the output capacitance and also makes (High VIN) / (Low VOUT) operation possible. This adaptive tON ripple control architecture combines the advantages of fixed-frequency operation and fast transient response in a single device.
The MIC28510 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, internal soft-start to reduce inrush current, foldback current limit, "hiccup" mode short circuit protection, and thermal shutdown.
Additional Features
- Hyper Speed Control™ architecture enables
- High delta V operation (VIN = 75V and VOUT = 0.8V)
- Small output capacitance
- 4.5V to 75V voltage input
- 4A output current capability, up to 95% efficiency
- Adjustable output voltage form 0.8V to 24V
- ≤1% FB accuracy
- Any Capacitor™ stable
- Zero-ESR to high ESR output capacitors
- 100kHz to 500kHz switching frequency
- Internal compensation
- Foldback current limit and "hiccup" mode short-circuit protection
- Thermal shutdown
- Supports safe startup into a pre-biased load
- -40°C to +125°C junction temperature range
