MIC23451-AAAYFL-TR
Active3MHZ PWM 2A TRIPLE BUCK REGULATOR WITH HYPERLIGHT LOAD AND POWER GOOD 26 VQFN 4X4X0.9MM T/R ROHS COMPLIANT: YES
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MIC23451-AAAYFL-TR
Active3MHZ PWM 2A TRIPLE BUCK REGULATOR WITH HYPERLIGHT LOAD AND POWER GOOD 26 VQFN 4X4X0.9MM T/R ROHS COMPLIANT: YES
Technical Specifications
Parameters and characteristics for this part
| Specification | MIC23451-AAAYFL-TR |
|---|---|
| Current - Output | 2 A |
| Frequency - Switching | 3 MHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 3 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | 26-VFQFN Exposed Pad |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 5.5 V |
| Voltage - Input (Min) [Min] | 2.7 V |
| Voltage - Output (Max) [Max] | 3.3 V |
| Voltage - Output (Min/Fixed) | 1 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) | 5000 | $ 1.78 | |
| Microchip Direct | T/R | 1 | $ 2.35 | |
| 25 | $ 1.94 | |||
| 100 | $ 1.78 | |||
| 1000 | $ 1.70 | |||
| 5000 | $ 1.69 | |||
| Newark | Each (Supplied on Full Reel) | 100 | $ 1.84 | |
Description
General part information
MIC23451 Series
The MIC23451 is a high-efficiency, 3MHz, triple 2A, synchronous buck regulator with HyperLight Load® mode. HyperLight Load provides very-high efficiency at light loads and ultra-fast transient response, which is ideal for supplying processor core voltages. An additional benefit of this proprietary architecture is very low output ripple voltage throughout the entire load range with the use of small output capacitors. The 4mm x 4mm QFN package saves board space and requires only five external components for each channel.
The MIC23451 is designed for use with a very small inductor, down to 0.47µH, and an output capacitor as small as 2.2µF that enables a total solution size that is less than 1mm height.
The MIC23451 has a very-low quiescent current of 24µA each channel and achieves as high as 81% efficiency at 1mA. At higher loads, the MIC23451 provides a constant switching frequency around 3MHz while achieving peak efficiencies up to 93%.
Documents
Technical documentation and resources