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Analog Devices Inc. LTM8054EY#PBF
- Part No.:
- LTM8054EY#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Converters
- Package:
- 88-BBGA Module
- Datasheet:
-
LTM8054EY#PBF.pdf
- Description:
- DC DC CONVERTER 1.2-36V
- Quantity:
- Payment:
- Shipping:
Inventory:4,517
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Product details
Overview
LTM8054EY#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 and regulates output voltages from 1.2V to 36V with up to 94% efficiency, selectable 100–800kHz switching frequency, and input/output average current regulation - used in industrial control power supplies requiring wide VIN/VOUT flexibility and compact footprint.
For engineers reviewing the LTM8054EY#PBF datasheet, LTM8054EY#PBF pinout, LTM8054EY#PBF application, or LTM8054EY#PBF equivalent, key selection considerations include its 11.25mm × 15mm × 3.42mm BGA package, dual current monitoring (IINMON/IOUTMON), SYNC/CLKOUT synchronization capability, and ±0.5% output voltage accuracy over line/load/temperature.
Technical Context
The LTM8054EY#PBF implements a fixed-frequency current-mode PWM buck-boost topology enabling VIN > VOUT, VIN = VOUT, and VIN < VOUT operation. Its internal controller supports programmable switching frequency via RT resistor (100–800kHz) and external synchronization (200–700kHz) through SYNC/CLKOUT pins.
It integrates dual average current regulation loops: input current limit set by 50mV threshold at IIN pin, and output current limit set by 58mV threshold at IOUT pin. The FB pin regulates to 1.200V ±12mV (±1%), enabling precise output voltage setting via external resistor divider.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 36V - supports battery, solar, and industrial bus inputs without pre-regulation |
| Output Voltage Range | 1.2V to 36V - programmable via FB resistor divider; enables single-supply generation across diverse rail requirements |
| Max Output Current | 5.4A at 24VIN/12VOUT - thermal-limited peak output; derates with higher VOUT or lower VIN |
| Switching Frequency | 100kHz to 800kHz - set by RT resistor; higher frequencies reduce inductor size but increase switching loss |
| Efficiency | Up to 94% - achieved at mid-load and optimal VIN/VOUT combinations (e.g., 24VIN→12VOUT) |
| FB Reference Voltage | 1.200V ±12mV - enables ±1% output voltage accuracy with precision resistors and layout |
| Current Sense Thresholds | IIN: 50mV; IOUT: 58mV - defines max input/output current limits with external sense resistors |
Pinout & Package
The LTM8054EY#PBF is housed in an 88-ball BGA package measuring 15mm × 11.25mm × 3.42mm, RoHS-compliant with SAC305 finish, MSL Level 3, and optimized for automated SMT assembly and bottom-side thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (Bank 2) | Power Output | Main regulated output node; connects to output capacitors and load; must be routed with low-inductance path to GND |
| VIN (Bank 3) | Input Power | Primary input supply path for power switches; requires local low-ESR ceramic bypass capacitor |
| GND (Bank 1, Pin L1) | Ground Reference | Primary thermal and signal return; ties to large local ground plane for thermal performance and noise control |
| FB (Pin J1) | Output Feedback | Sense point for output voltage regulation; referenced to 1.200V internal bandgap; sets VOUT via resistor divider |
| RT (Pin H1) | Frequency Programming | Connects to GND via resistor to set switching frequency; open-circuit not allowed; min capacitance required |
| SYNC (Pin H2) | External Clock Input | Accepts 200–700kHz external clock to synchronize multiple modules or reduce EMI beat frequencies |
| IOUT (Pin C1) | Output Current Sense | Connects to output current sense resistor; enables average output current limiting at 58mV/RSENSE |
| IIN (Pin L6) | Input Current Sense | Connects to input current sense resistor; enables average input current limiting at 50mV/RSENSE |
| CLKOUT (Pin G1) | Internal Clock Output | Provides 180° phase-shifted copy of internal oscillator; used to synchronize external converters |
| RUN (Pin L4) | Enable Control | Active-high enable; >1.2V starts operation; ≤0.3V disables with <1µA quiescent current |
Key Features
| Feature | Design Value |
|---|---|
| Buck-boost topology | Enables seamless regulation when VIN is above, equal to, or below VOUT - eliminates need for separate buck/boost stages |
| Integrated inductor | Reduces external component count and board area; eliminates inductor selection, placement, and EMI tuning effort |
| Dual current monitoring | IINMON and IOUTMON provide buffered 0–1V analog outputs proportional to input/output current - enables real-time system telemetry |
| Parallel operation support | Master-slave configuration using IOUTMON→CTL interconnection allows scalable current delivery without external controllers |
| Thermal shutdown | Protects against sustained overtemperature; activates above 125°C junction temperature to prevent reliability degradation |
Applications
| Industrial Control Power Supply | Solar Charge Controller Interface |
|---|---|
Use Scenario: Providing stable 12V/5.4A power to PLC I/O modules from variable 24V DC bus with brownout tolerance. IC Role / Device Role / Timing Role: Primary non-isolated buck-boost regulator delivering regulated output despite input sag or surge. Use Value: Eliminates need for pre-regulator + secondary stage; maintains regulation down to 5VIN while supporting 36VIN transients. | Use Scenario: Regulating battery charging voltage (e.g., 14.4V) from wide-range PV array output (18–36V). IC Role / Device Role / Timing Role: Constant-voltage/constant-current charger front-end with programmable output and current limiting. Use Value: Uses IOUT pin for accurate battery current regulation; SYNC enables coordinated multi-module charge sequencing. |
| High-Power Portable Instrumentation | Automated Test Equipment (ATE) Bias Supply |
Use Scenario: Generating 5V/3.4A and 3.3V/2.5A rails from 12V battery in handheld spectrum analyzer with minimal heat buildup. IC Role / Device Role / Timing Role: Compact, thermally efficient µModule replacing discrete DC/DC + inductor solution. Use Value: 11.25mm × 15mm footprint saves >60% board area vs discrete equivalent; bottom-thermal pad enables conduction cooling. | Use Scenario: Providing adjustable 1.2–36V bias to DUTs in modular ATE rack where input bus varies between 6–35V. IC Role / Device Role / Timing Role: Programmable, high-accuracy output voltage source with remote sensing and current limiting. Use Value: FB accuracy ±1% and 0.5% load/line regulation ensure DUT test repeatability; CTL pin enables dynamic current capping during fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTM8055EY#PBF | Higher 8.5A peak output at 24VIN/12VOUT; larger 15mm × 15mm × 4.92mm BGA; 40V abs max rating | Preferred for >5.4A continuous loads; requires more PCB area and thermal margin | Select when output current demand exceeds 5.4A and board space permits larger package |
| LM5175RGYR | Discrete controller IC (no integrated inductor); supports up to 12A; requires external FETs, inductor, compensation | Offers greater design flexibility and efficiency optimization; demands full power stage design effort | Select when custom magnetics, higher efficiency (>95%), or cost-sensitive high-volume production justifies added design complexity |
Compared with LTM8054EY#PBF, LTM8055EY#PBF delivers higher current in a larger package with identical feature set, while LM5175RGYR trades integration for design flexibility and scalability - making LTM8054EY#PBF optimal for space-constrained, time-to-market-critical designs needing proven 5.4A performance.
Availability
LTM8054EY#PBF is available at Aetrix Electronics and suitable for industrial control, solar energy systems, and portable instrumentation requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LTM8054EY#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 acquired Linear Technology in 2017 and continues its legacy of high-performance power management ICs, known for µModule integration, precision regulation, and rugged industrial qualification.
The LTM8054EY#PBF belongs to the µModule regulator product line, designed to replace complex discrete DC/DC designs with fully tested, thermally optimized, and layout-verified subsystems for demanding embedded power applications.
FAQ
What is the absolute maximum input voltage rating for the LTM8054EY#PBF?
The LTM8054EY#PBF has an absolute maximum input voltage rating of 40V on VIN and SVIN pins. Operation beyond this voltage risks permanent damage. The recommended operating range remains 5V to 36V, and transient spikes must be clamped or filtered to stay within the 40V limit. This rating is defined in the Absolute Maximum Ratings table and applies regardless of duration or duty cycle.
Can the LTM8054EY#PBF regulate output voltage below 1.2V?
No, the LTM8054EY#PBF cannot regulate output voltage below 1.2V. Its internal feedback reference is fixed at 1.200V ±12mV, and the FB pin is designed to be driven by a resistor divider from VOUT to GND. Attempting to set VOUT < 1.2V violates the regulation architecture and results in uncontrolled output. For sub-1.2V rails, a different regulator or post-regulation stage is required.
How does the MODE pin affect operation of the LTM8054EY#PBF?
The MODE pin configures switching behavior: left open or tied to LL, it enables forced continuous conduction mode (FCCM); pulled low, it enables discontinuous conduction mode (DCM) which blocks reverse inductor current. In DCM, light-load efficiency improves but output ripple increases. The LTM8054EY#PBF datasheet specifies that MODE must not be connected to active drivers or loads - only GND, LL, or open.
Is the LTM8054EY#PBF pin-compatible with other µModule regulators like LTM8056?
No, the LTM8054EY#PBF is not pin-compatible with LTM8056 or LTM8055. Although all three share the µModule buck-boost architecture, they differ in ball count, pitch, and pin assignment - LTM8054EY#PBF uses an 88-ball 15mm × 11.25mm BGA, while LTM8055/LTM8056 use 118-ball 15mm × 15mm packages with distinct pinouts. PCB layout and footprint are not interchangeable.
What thermal derating applies to the LTM8054EY#PBF at 125°C ambient?
The LTM8054EY#PBF is rated for operation from –40°C to 125°C junction temperature. At 125°C ambient, output current must be significantly derated due to limited thermal headroom - typical maximum output drops to ~2.5A at 12VOUT depending on PCB copper area and airflow. The device's θJA is 17.6°C/W; maintaining TJ ≤ 125°C requires careful thermal design, including thermal vias under the GND pads and adequate copper pour.
LTM8054EY#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:
- -
LTM8054EY#PBF FAQ
1.How can I place an order for LTM8054EY#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTM8054EY#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 LTM8054EY#PBF reliable?
The price and inventory of LTM8054EY#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTM8054EY#PBF is usually 5 days.
3.What payment methods are accepted for LTM8054EY#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTM8054EY#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTM8054EY#PBF?
LTM8054EY#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTM8054EY#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 LTM8054EY#PBF?
For technical support, including LTM8054EY#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTM8054EY#PBF requirements.
6.How does Aetrix verify that LTM8054EY#PBF is sourced from the original manufacturer or authorized distributors?
All LTM8054EY#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 LTM8054EY#PBF meets industry standards.
7.What is the process for return or replacement of LTM8054EY#PBF?
All LTM8054EY#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTM8054EY#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 LTM8054EY#PBF part is unused and in its original packaging.
Return procedure for LTM8054EY#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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