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Analog Devices Inc. LTM8054IY#PBF
- Part No.:
- LTM8054IY#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Converters
- Package:
- 88-BBGA Module
- Datasheet:
-
LTM8054IY#PBF.pdf
- Description:
- DC DC CONVERTER 1.2-36V
- Quantity:
- Payment:
- Shipping:
Inventory:1,187
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Product details
Overview
LTM8054IY#PBF from Analog Devices (formerly Linear Technology) is a 36V-input, 5.4A buck-boost µModule regulator integrating controller, power switches, inductor, and support components in a single BGA package. It operates from 5V to 36V input, regulates output from 1.2V to 36V, delivers up to 5.4A at 12VOUT from 24VIN, and achieves up to 94% efficiency-ideal for industrial power supplies with wide VIN/VOUT ranges and battery-backed systems.
For engineers reviewing the LTM8054IY#PBF datasheet, LTM8054IY#PBF pinout, LTM8054IY#PBF application, or LTM8054IY#PBF equivalent, key selection criteria include its adjustable input/output current limiting, synchronization capability (200–700kHz), 11.25mm × 15mm BGA footprint, thermal performance under load, and parallel operation support for higher current.
Technical Context
The LTM8054IY#PBF implements a fixed-frequency current-mode PWM buck-boost topology with integrated magnetics, enabling regulation when VIN is above, below, or equal to VOUT. Its control loop uses internal compensation with external RC tuning via the COMP pin and supports soft-start via SS capacitor.
It features dual average current regulation loops-input current sensed at IIN (50mV threshold) and output current sensed at IOUT (58mV threshold)-with dedicated monitor outputs (IINMON, IOUTMON) and programmable current limiting via CTL voltage. Synchronization is achieved through the SYNC input and CLKOUT output, phase-shifted ~180°.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 36V - supports wide-range industrial, solar, and battery inputs without pre-regulation |
| Output Voltage Range | 1.2V to 36V - set by FB resistor divider; enables single-part flexibility across multiple rail requirements |
| Max Output Current | 5.4A at 12VOUT from 24VIN - defines maximum continuous load capability under thermal limits |
| Switching Frequency | 100kHz to 800kHz - set by RT resistor; optimal range 500–650kHz balances efficiency and size |
| Efficiency | Up to 94% - measured at 12VOUT/5.4A from 24VIN; reduces thermal load and improves system power density |
| Package Dimensions | 15mm × 11.25mm × 3.42mm BGA - compact, RoHS-compliant overmolded module for automated SMT assembly |
| Operating Temp Range | –40°C to +125°C junction - qualified for harsh industrial and automotive under-hood environments |
Pinout & Package
The LTM8054IY#PBF is housed in an 88-ball BGA package (15mm × 11.25mm × 3.42mm), RoHS-compliant with SAC305 finish, MSL Level 3, and optimized for thermal conduction through bottom GND balls.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Bank 3) | Main input power supply connection | Supplies current to internal power switches; requires local low-ESR bypass capacitor |
| VOUT (Bank 2) | Regulated output power node | Delivers regulated DC output; connects to output filter capacitors and load |
| IOUT (C1) | Output current sense input | Sets output current limit at 58mV/RSENSE; must be tied to VOUT if no sense resistor used |
| IIN (L6) | Input current sense input | Sets input current limit at 50mV/RSENSE; tie to VIN if unused |
| FB (J1) | Output voltage feedback input | Regulated to 1.200V ±12mV; sets VOUT = 1.2 × (RTOP/RBOT + 1) |
| RT (H1) | Frequency programming input | Resistor-to-GND sets switching frequency from 100kHz to 800kHz |
| SYNC (H2) | External clock synchronization input | Accepts 200–700kHz external clock; internal pull-down enables default free-running mode |
| CLKOUT (G1) | Internal oscillator clock output | Provides synchronized clock signal ~180° out-of-phase with internal switching |
| RUN (L4) | Enable/disable control | Active-high enable: >1.25V starts operation; ≤0.3V disables with <1µA quiescent current |
| MODE (G2) | Continuous/discontinuous mode select | Open = forced CCM; low = DCM (blocks reverse inductor current) |
| SS (K1) | Soft-start timing control | Capacitor-to-GND controls ramp time of current limit during startup |
| CTL (K2) | Output current limit adjustment | Voltage <1.2V scales down IOUT limit; <50mV halts switching |
| IOUTMON (L2) | Output current monitor output | 0–1.2V proportional to (VOUT – IOUT); used for master-slave current sharing |
| IINMON (L3) | Input current monitor output | 0–1.0V proportional to (IIN – VIN); high-impedance output requiring buffer for driving loads |
| LL (F1) | Light-load indicator | Open-drain output active when output current ≤6mV/RSENSE; used to trigger MODE changes |
| GND (L1, others) | Power and signal ground reference | Multiple bottom-side balls form primary thermal path; must connect to solid local ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Integrated buck-boost power stage | Eliminates need for external MOSFETs, gate drivers, and discrete inductor-reduces design cycle and layout risk |
| Adjustable input/output current limits | Configurable via resistors at IIN/IOUT pins (50mV/58mV thresholds), enabling precise source/sink protection |
| Parallel operation support | Master-slave configuration using IOUTMON→CTL interconnect allows scalable current delivery without external controllers |
| Thermal-aware design | Bottom-thermal-pad BGA package with θJCbottom = 5.9°C/W enables high-power operation on standard PCBs |
| Robust synchronization interface | SYNC input accepts 200–700kHz clocks; CLKOUT provides phase-aligned reference for multi-rail timing alignment |
Applications
| Solar-Powered Battery Charging | Industrial Control Power Supply |
|---|---|
Use Scenario: Regulating variable solar panel output (12–36V) to charge 24V lead-acid or LiFePO₄ batteries while maintaining constant-current/constant-voltage profiles. IC Role / Device Role / Timing Role: Buck-boost regulator providing bidirectional VIN/VOUT relationship, input current limiting to prevent panel overload, and output current monitoring for charge control. Use Value: Enables single-stage charging without MPPT pre-regulator; 5.4A peak output supports fast-charging rates; thermal robustness sustains operation in unventilated enclosures. | Use Scenario: Powering PLC I/O modules, sensors, and actuators from wide-range 12–36V DC industrial rails with strict ripple and transient response requirements. IC Role / Device Role / Timing Role: Primary non-isolated DC/DC converter delivering stable 5V, 12V, or 24V rails with input surge protection and output short-circuit recovery. Use Value: Input range covers brownout and battery-backup conditions; 94% efficiency minimizes heat in dense backplanes; SYNC capability aligns switching noise with other system clocks. |
| High-Power Portable Equipment | Automotive Auxiliary Power |
Use Scenario: Supplying 12V/5.4A to portable test equipment powered from 6–24V lithium battery packs with dynamic load steps. IC Role / Device Role / Timing Role: Wide-input buck-boost regulator supporting battery voltage sag during high-current discharge while maintaining regulated output. Use Value: Delivers full rated current even at 6VIN → 12VOUT (step-up); soft-start (SS) prevents inrush into large capacitive loads; LL pin enables light-load efficiency optimization. | Use Scenario: Generating stable 5V or 12V auxiliary power from vehicle battery (9–16V nominal, up to 36V load-dump) for infotainment or ADAS subsystems. IC Role / Device Role / Timing Role: Load-dump tolerant buck-boost regulator with input current limiting to protect upstream fuses and output current monitoring for fault logging. Use Value: Withstands 40V absolute max input; –40°C to +125°C rating ensures cold-cranking and under-hood reliability; compact BGA eases placement near ECU connectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost µModule applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTM8055IY#PBF | Same architecture but 8.5A peak output at 12VOUT from 24VIN; larger 15mm × 15mm × 4.92mm BGA package; 40V abs max input | Higher current demand (>5.4A), less space-constrained layouts, or need for higher input voltage margin | Select LTM8055IY#PBF only if ≥6A output is required and board area allows larger footprint and height |
| LTM4607IV#PBF | 36VIN, 5A step-down-only µModule; no buck-boost capability; 15mm × 15mm × 4.92mm LGA; supports output voltages down to 0.6V | Applications where VIN always exceeds VOUT (e.g., 24V bus → 5V/3.3V rails) and step-up is never needed | Choose LTM4607IV#PBF only for pure buck applications-cannot replace LTM8054IY#PBF in buck-boost or VIN < VOUT use cases |
Compared with LTM8055IY#PBF, the LTM8054IY#PBF offers smaller footprint and lower height for space-constrained designs, while LTM4607IV#PBF trades buck-boost flexibility for tighter output voltage accuracy and lower minimum VOUT, making it unsuitable as a functional substitute where VIN may fall below VOUT.
Availability
LTM8054IY#PBF is available at Aetrix Electronics and suitable for industrial control power supplies, solar battery chargers, and high-power portable equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTM8054IY#PBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. (ADI) is a global semiconductor leader specializing in high-performance analog, mixed-signal, and power management ICs, acquired Linear Technology in 2017 to strengthen its µModule and precision power portfolio.
The LTM8054IY#PBF belongs to ADI's µModule regulator family-designed to simplify power system design by integrating magnetics and control circuitry into compact, thermally enhanced packages for demanding industrial, aerospace, and instrumentation applications.
FAQ
What is the maximum output current capability of the LTM8054IY#PBF?
The LTM8054IY#PBF delivers up to 5.4A continuous output current at 12VOUT when supplied from 24VIN, as verified in the datasheet's Typical Performance Characteristics. This value decreases at higher output voltages or lower input voltages due to thermal and power limitations. Peak current capability is constrained by junction temperature rise, PCB thermal design, and input-output voltage differential.
Can the LTM8054IY#PBF operate with input voltage lower than 5V?
No-the LTM8054IY#PBF has a minimum operating input voltage of 5V on the VIN pin. However, it can start and operate below 5V on VIN if the SVIN pin is supplied with a separate ≥5V bias source, enabling functionality during battery brownout or low-VIN conditions typical in backup power systems.
How is output voltage programmed on the LTM8054IY#PBF?
The LTM8054IY#PBF output voltage is set via a resistor divider connected between VOUT and GND, with the FB pin tied to the divider midpoint. The device regulates FB to 1.200V ±12mV, so VOUT = 1.2 × (RTOP/RBOT + 1). Recommended resistor values for common outputs (e.g., 12V, 5V) are provided in Table 1 of the datasheet.
Does the LTM8054IY#PBF require an output current sense resistor to function?
The LTM8054IY#PBF does not require an output current sense resistor for basic voltage regulation, but one is strongly recommended. Without it, output current limiting, IOUTMON monitoring, and optimal light-load efficiency (via MODE/LL interaction) are unavailable-and output ripple or stability may degrade under discontinuous conduction.
What thermal considerations apply to the LTM8054IY#PBF layout?
The LTM8054IY#PBF relies on its bottom-side GND balls for primary thermal conduction (θJCbottom = 5.9°C/W). A solid, multi-layer PCB ground plane directly beneath the package is essential. Thermal vias under the GND array, adequate copper area, and minimal trace resistance between GND pins and plane maximize heat dissipation and sustain 5.4A operation within the –40°C to +125°C junction limit.
LTM8054IY#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- µModule®
- Package/Case:
- 88-BBGA Module
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 5V
- Voltage - Input (Max):
- 36V
- Voltage - Output 1:
- 1.2 ~ 36V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 5.4A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- OTP
- Operating Temperature:
- -40°C ~ 125°C
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 88-BGA (15x11.25)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
LTM8054IY#PBF FAQ
1.How can I place an order for LTM8054IY#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTM8054IY#PBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LTM8054IY#PBF reliable?
The price and inventory of LTM8054IY#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTM8054IY#PBF is usually 5 days.
3.What payment methods are accepted for LTM8054IY#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTM8054IY#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTM8054IY#PBF?
LTM8054IY#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTM8054IY#PBF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LTM8054IY#PBF?
For technical support, including LTM8054IY#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTM8054IY#PBF requirements.
6.How does Aetrix verify that LTM8054IY#PBF is sourced from the original manufacturer or authorized distributors?
All LTM8054IY#PBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LTM8054IY#PBF meets industry standards.
7.What is the process for return or replacement of LTM8054IY#PBF?
All LTM8054IY#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTM8054IY#PBF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LTM8054IY#PBF part is unused and in its original packaging.
Return procedure for LTM8054IY#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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