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Microchip MIC2133 | Demoboard MIC2133 Evaluation Board / EV66P64A
75V Dual Phase, Advanced COT Buck Controller with Selectable Droop Feature and Phase Shedding
Overview
| Topology | Buck Converter |
| Input voltage | 4.5-75 V |
| Switching frequency | 100-800 kHz |
| Output 1 | 32 V / 50 A |
| IC revision | A |
Description
The MIC2133 is an enhanced adaptive on-time, synchronous 2 phase buck controller featuring a proprietary Host/User control architecture. This advanced control architecture will enable optimal current sharing of phases in host and user modes with the option of cascading several user devices in parallel to increase current capability of the entire solution. The MIC2133 operates over an input supply range from 4.5V to 75V and can be used to supply up to 50A of output current. The output voltage is adjustable down to 0.6V with a guaranteed accuracy of ±1%. The device operates with programmable switching frequency from 100 kHz to 800 kHz per phase. The MIC2133 is available in a 32 pin 5mm x 5mm QFN with a junction operating range from –40°C to +125°C.
Features
Input Voltage Range: 4.5V to 75V
- Adjustable Output Voltage Range: 0.6V to 32V
- Adaptive Constant on Time Control
- High Delta V Operation
- Any Capacitor™ Stable
- 0.6V Internal Reference with ±1% Accuracy
- Ripple Injection from Third Node which allows Greater Than 50% Duty Cycles
- HyperLight Load and Phase Shedding
- Automatic Phase Shedding of Secondary Phase
- Accurate Current Balancing between Phases
- Accurate Phasing Between Phases that Are Always 180° Out of Phase
- 100 kHz To 800 kHz Switching Frequency Per Phase
- High Voltage Internal 5V LDO for Single Supply Operation
- Secondary LDO To Improve System Efficiency
- Supports Start Up To Pre-bias Output
- Remote Sense Amplifier for Tight Output Regulation
- Supports Adaptive Voltage Positioning (AVP) or Drooprecision Enable Function for Low Stand-by Current
- External Programmable Soft Start to Reduce Inrush Current
- Programmable Current Limit and Hiccup Short Circuit Protection
- Thermal Shut Down With Hysteresis
- Die Temperature Sense
- Compact size: 5 x 5 mm 32-pin VQFN package
- -40°C to +125°C Junction Temperature Range
Typical applications
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | RDC max.(mΩ) | fres(MHz) | Mount | Pins | Type | IR(A) | Working Voltage(V (AC)) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 50 V(DC), 1 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance1 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor2.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | |||||
 | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Dual | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | Insulation Resistance1000 MΩ | – | Length10.16 mm | – | – | – | PackagingBag | – | – | – | – | – | – | MountTHT | Pins8 | TypeStraight | Rated Current3 A | Working Voltage250 V (AC) | ||||
 | WE-XHMI SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-XHMI SMT Power Inductor | – | – | – | Size1090 | Operating Temperature -40 °C up to +125 °C | – | – | – | Length11.6 mm | Width10.5 mm | Height8.8 mm | – | – | Inductance4.7 µH | Performance Rated Current20 A | Saturation Current @ 30%28.05 A | DC Resistance5 mΩ | DC Resistance5.5 mΩ | Self Resonant Frequency21 MHz | MountSMT | Pins2 | – | Rated Current13.5 A | – |