ACT85411
Power Loss Protection Power Management Unit with integrated high current Bucks and Buck-Boost converters and LDO for enterprise SSDs application
Key Features
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Monolithic design for both PLP and PMIC in one chip
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All eFuse/Bucks/Boosts FETs are integrated
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2.7V ~14.4V Operating Input with 20V Max Blocking
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Programmable 10A Input Current Limit for eFuse
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Programmable Input UV/OV/OC/SC & Inrush Control
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5.5V ~ 31 V Boost Cap Charger
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2 x 10A Max, 12A Peak Synchronous High Efficiency Bucks
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1 x 16V / 1A Buck-Boost
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1 x 5V / + 3.6V / 200 mA LDO
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6 programmable GPIOs
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Storage Capacitance Check & Read
The ACT85411 is a highly integrated, highly configurable multiple output power management IC (PMIC) with built-in power loss protection (PLP). Two high-efficiency buck regulators can supply up to 12A of peak current and up to 10A of continuous output current. Both buck converters' output voltage is programmable between 0.6V and 5.26V. The device also has a 12V buck-boost converter with a programmable output range of 9.6V to 15.95V. The ACT85411 also includes a specialized LDO. The input power supply for the LDO is selectable between either the VCC (5.0V) output of the ACT85411 or the VAUX input pin. A dedicated mini-buck regulator converts the input 12V supply to generate a 5.0V output on VCC. The power loss protection or PLP circuitry provides backup storage power in the event of an input power failure. A built-in Boost converter provides high-voltage energy storage to minimize storage capacitor size requirements.
Typical Applications
- Solid State Drives
- Industrial Applications
- Backup Power
- Hot Plug / Hot Swap Devies
Product Categories
Application Categories
| Min Input Voltage(V) | 2.7 |
| Max Input Voltage(V) | 14.4 |
| eFuse Abs Max Voltage(V) | 20 |
| eFuse FET RDS(on)(mohm) | 17 |
| Storage Cap Voltage(V) | 31 |
| Max Input Current(A) | 10 |
| Buck FET RDS(on)(mohm) | 60, 35 |
| Buck Current(A) | 10 (max), 12 (peak) |
| Buck Operation Frequency(kHz) | 562, 1125, 1500, 2250 |
| Blocking FET(mohm) | 30 |
| Interface | I2C |
| Autonomous Health Monitoring | Yes |
| ADC | 12-bit, 8 channels |
| Package Type | 52L - QFN |
| Package(mm) | 6.0 x 6.0 |
| RoHS | Yes |
| Lead Free | Yes |
| Halogen Free | Yes |
| ITAR Restricted | No |
| ECCN | EAR99 |