MIC2155YML-TR
ActiveSINGLE OUTPUT, PWM SYNC BUCK CONTROLLER 32 VQFN 5X5X0.9MM T/R ROHS COMPLIANT: YES
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MIC2155YML-TR
ActiveSINGLE OUTPUT, PWM SYNC BUCK CONTROLLER 32 VQFN 5X5X0.9MM T/R ROHS COMPLIANT: YES
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Technical Specifications
Parameters and characteristics for this part
| Specification | MIC2155YML-TR |
|---|---|
| Clock Sync | True |
| Control Features | Soft Start, Current Limit, Enable, Power Good |
| Duty Cycle (Max) | 80 % |
| Frequency - Switching | 500 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 2 |
| Output Type | Transistor Driver |
| Package / Case | 32-VFQFN Exposed Pad |
| Supplier Device Package | 32-QFN (5x5) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 14.5 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 1000 | $ 4.07 | |
| Microchip Direct | T/R | 1 | $ 5.35 | |
| 25 | $ 4.48 | |||
| 100 | $ 4.07 | |||
| 1000 | $ 3.40 | |||
| 5000 | $ 3.14 | |||
| 10000 | $ 2.91 | |||
| Newark | Each (Supplied on Full Reel) | 100 | $ 4.20 | |
Description
General part information
MIC2155 Series
The MIC2155 and MIC2156 are a family of 2-phase, single output synchronous buck control ICs featuring small size, high efficiency, and a high level of flexibility. The ICs implement a 500kHz (MIC2155) and 300kHz (MIC2156) voltage mode PWM control, with the outputs switching 180° out of phase. The result of the out-of-phase operation is 1MHz (or 600kHz) input ripple with ripple current cancellation, minimizing the required input filter capacitance. A 1% output voltage tolerance allows the maximum level of system performance. Internal drivers with adaptive gate drive allow the highest efficiency with the minimum external components.
Two independent enable pins and a power good output are provided, allowing a high level of control and sequencing capability.
The MIC215x family has a junction operating range from -40°C to +125°C.
Documents
Technical documentation and resources