LTM8055IY-1#PBF Analog Devices Integrated Circuit (BGA) In Stock
Analog Devices LTM8055IY-1#PBF is a high-power buck-boost μModule regulator delivering 8.5 A output from a 5 V to 36 V input with adjustable output from 1.2 V to 36 V in a 121-ball BGA module. Current-mode PWM control ensures fast transient response and stable operation across wide input/output voltage ranges. The integrated module simplifies high-current power supply designs for industrial and communications equipment.
- Manufacturer
- Analog Devices
- Package
- BGA
- Pin Count
- 121
- Lifecycle
- ACTIVE
- Datasheet
- LTM8055IY-1#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $31.0448(MOQ 5)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTM8055IY-1#PBF?
- 8.5 A continuous output current from a single 121-ball BGA module with all passives integrated
- Wide 5 V to 36 V input range with 1.2 V to 36 V adjustable output for versatile power rail generation
- Current-mode PWM control for fast load transient response and inherent cycle-by-cycle current limiting
- Compact integrated μModule design reducing solution footprint versus discrete buck-boost converter implementations
- Pb-free, RoHS compliant BGA module packaging for modern industrial and communications power supply designs
What is LTM8055IY-1#PBF used for?
The LTM8055IY-1#PBF is well-suited for high-current point-of-load power supplies in industrial automation, telecommunications base stations, and rack-mounted computing systems requiring 8.5 A from wide-range input rails from 5 V to 36 V. Its buck-boost topology handles input voltages above, below, or equal to the output voltage without discontinuity, making it ideal for battery-backed systems where the bus voltage sags during discharge. The integrated μModule format with all inductors and control circuitry in a single BGA package minimizes engineering time and reduces PCB layout complexity for multi-rail power delivery systems.
What are the specifications of LTM8055IY-1#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1891 |
| Date Of Intro | 2018-08-24 |
| YTEOL | 8.5 |
| Additional Feature | OUTPUT VOLTAGE FROM 1.2V TO 36V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 36V |
| Input Voltage-Min | 5V |
| Input Voltage-Nom | 6V |
| JESD-30 Code | S-PBGA-B121 |
| JESD-609 Code | e1 |
| Number of Functions | 1 |
| Output Current-Max | 8.5A |
| Output Voltage-Max | 36V |
| Output Voltage-Min | 1.2V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | GRID ARRAY |
| Peak Reflow Temperature (Cel) | 245 |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 800kHz |
| Technology | HYBRID |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Tin/Silver/Copper (Sn/Ag/Cu) |
| Terminal Form | BALL |
| Terminal Pitch | 1.27mm |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the LTM8055IY-1#PBF datasheet?
LTM8055IY-1#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTM8055IY-1#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does LTM8055IY-1#PBF handle input voltage fluctuations that cross the output voltage setpoint?
The LTM8055IY-1#PBF uses a buck-boost switching topology that operates seamlessly whether the input voltage is above, below, or equal to the programmed output. For example, with a 12 V output setpoint, the regulator maintains regulation as the input transitions from 36 V down through 12 V and further to the 5 V minimum without glitches or instability. This is critical in 24 V battery systems that sag to 18 V under load while requiring a stable 24 V or 28 V output.
What external components are required to complete a power supply with LTM8055IY-1#PBF, and how compact is the solution?
The LTM8055IY-1#PBF is a complete μModule containing the switching controller, power switches, and inductor within the 121-ball BGA package. The external bill of materials is minimal: two output capacitors of approximately 22 µF each, two input decoupling capacitors, and two resistors to set the output voltage via the feedback divider. This yields a complete 8.5 A power supply in under 400 mm² of PCB area, compared to a discrete solution requiring 600 mm² or more.
For a 48 V to 12 V step-down rail in a telecom card, does LTM8055IY-1#PBF cover the input range?
No. The LTM8055IY-1#PBF has a maximum input voltage of 36 V, so a 48 V telecom bus exceeds its absolute maximum rating. For 48 V input applications requiring 8.5 A output, Analog Devices offers the LTM8056 or LTM4644 family rated up to 40 V or higher. The LTM8055IY-1#PBF is best matched to 12 V to 24 V nominal bus systems with transient spikes within the 36 V maximum.
Does cycle-by-cycle current limiting in LTM8055IY-1#PBF protect against output short-circuit faults without latching off?
Yes. The current-mode PWM control in LTM8055IY-1#PBF implements cycle-by-cycle peak current limiting that clamps the inductor current on each switching cycle during overload or short-circuit conditions. The regulator reduces duty cycle to limit current to approximately 10 A peak before a fault, without latching off, and recovers automatically when the fault is removed. This non-latching behavior avoids the need for manual reset in industrial equipment where brief transient faults occur during motor start or capacitive load inrush.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 5+ | $62.6800 | $313.40 |
| 6+ | $35.8209 | $214.93 |
| 8+ | $34.6269 | $277.02 |
| 10+ | $31.0448 | $310.45 |
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