MIC3808YM
Active1A SWITCHING CONTROLLER, 1000KHZ SWITCHING FREQ-MAX, PDSO8
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MIC3808YM
Active1A SWITCHING CONTROLLER, 1000KHZ SWITCHING FREQ-MAX, PDSO8
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Technical Specifications
Parameters and characteristics for this part
| Specification | MIC3808YM |
|---|---|
| Control Features | Frequency Control |
| Duty Cycle | 49 % |
| Fault Protection | Current Limiting |
| Frequency - Switching [Max] | 1 MHz |
| Internal Switch(s) | False |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Isolation | Isolated |
| Package / Case | 8-SOIC |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Supplier Device Package | 8-SOIC |
| Topology | Push-Pull |
| Voltage - Start Up | 12.5 V |
| Voltage - Supply (Vcc/Vdd) [Max] | 15 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 8.3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 95 | $ 2.05 | |
| 190 | $ 1.86 | |||
| Microchip Direct | TUBE | 1 | $ 2.46 | |
| 25 | $ 2.05 | |||
| 100 | $ 1.86 | |||
| 1000 | $ 1.55 | |||
| 5000 | $ 1.44 | |||
| 10000 | $ 1.33 | |||
| Newark | Each | 1 | $ 2.56 | |
| 1 | $ 2.56 | |||
| 10 | $ 2.35 | |||
| 10 | $ 2.35 | |||
| 25 | $ 2.13 | |||
| 25 | $ 2.13 | |||
| 50 | $ 2.04 | |||
| 50 | $ 2.04 | |||
| 190 | $ 1.93 | |||
| 190 | $ 1.93 | |||
Description
General part information
MIC3808 Series
The MIC3808 and MIC3809 are a family of complementary output push-pull PWM control ICs that feature high speed and low power consumption. The MIC3808/9 are ideal for telecom level (36V to 75V) isolated step down DC/DC conversion applications where high output current, small size, and high efficiency are required.
The dual-ended push-pull architecture of the MIC3808/9 allows more efficient utilization of the transformer than single-ended topologies, allowing smaller size DC/DC solutions. Additionally, the out-of-phase push-pull topology allows a higher effective duty cycle, reducing input and output ripple as well as stress on the external components. The dead-time between the two outputs is adjustable between 60ns to 200ns, limiting the duty cycle of each output stage to less than 50%.
The MIC3808/9 are built on a low-power, high-speed BiCMOS process. The 130µA start-up current and 1mA run-current reduce the size of the start-up circuitry and allow high efficiency even at light loads. The high-speed internal 4MHz error amplifier allows MIC3808/9 operation up to 1MHz.
Documents
Technical documentation and resources
