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Analog Devices Inc. LTP8802A-1BIPV#PBF
- Part No.:
- LTP8802A-1BIPV#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Converters
- Package:
- 22-SMD Module
- Datasheet:
-
LTP8802A-1BIPV#PBF.pdf
- Description:
- 110A DC/DC MODULE REG PMBUS INTE
- Quantity:
- Payment:
- Shipping:
Inventory:3,027
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Product details
Overview
LTP8802A-1BIPV#PBF from Analog Devices is a 140A, 54V-input step-down μModule regulator with PMBus digital interface, delivering 3.3V output for microprocessor core power in high-density server and networking systems. It features ±0.5% DC output accuracy, 93.8% peak efficiency at 813kHz, and integrated telemetry for voltage, current, temperature, and fault monitoring.
For engineers reviewing the LTP8802A-1BIPV#PBF datasheet, LTP8802A-1BIPV#PBF pinout, LTP8802A-1BIPV#PBF application, or LTP8802A-1BIPV#PBF equivalent, key selection considerations include its 22-pin open-frame package, programmable digital control loop, remote sense capability, and support for parallel operation via ISHARE and SYNC pins in PolyPhase configurations.
Technical Context
The LTP8802A-1BIPV#PBF implements a quasi-resonant architecture to minimize switching losses at high input voltages (45–65V), enabling stable 3.3V/140A output with <60mV dynamic load excursion. Its digital control system includes EEPROM-stored configuration, Type 3 programmable compensation, and PMBus-compliant I²C interface (SDA/SCL) supporting standard and manufacturer-specific commands.
It integrates power MOSFETs, planar transformer, inductors, and mixed-signal circuitry in a single 22mm × 24mm × 22mm surface-mount module. Voltage sensing uses Kelvin-connected VS+/VS− inputs with ±100mV common-mode range, while dual supply rails (7V0 and 3V3) power gate drivers and digital logic independently.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 45V to 65V - supports 48V/54V/60V power distribution architectures without external pre-regulation |
| Output Voltage Range | 0.5V to 3.6V - digitally programmable via PMBus for multi-core or FPGA VDD applications |
| Max Output Current | 140A continuous - with 180A overcurrent limit and fast 10µs shutdown response on CTRL pin |
| Efficiency | 93.8% at 54VIN/3.3VOUT/105A - enables high-power delivery with low thermal dissipation in constrained spaces |
| Switching Frequency | 788–838kHz - fixed 813kHz nominal with ±10% sync range for phase interleaving across multiple modules |
| Output Accuracy | ±0.5% DC error with differential remote sense - ensures tight regulation at point-of-load under line/load variation |
| PMBus Compliance | Fully compliant with PMBus v1.3 - supports real-time telemetry, fault logging, and configurable protection thresholds |
Pinout & Package
The LTP8802A-1BIPV#PBF is housed in a 22-pin, 22mm × 24mm × 22mm surface-mounted open-frame package (PC-22-1), weighing 17.1g, with MSL Level 3 moisture sensitivity rating and 0°C to 125°C operating junction temperature range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SMBALERT (1) | Open-drain power-good & alert signal | Asserts low on startup completion or fault; shares SMBus alert bus with other PMBus devices |
| ISHARE (2) | Analog current-sharing node | Enables precise load balancing between paralleled modules without external controllers |
| CTRL (3) | Hardware enable/disable input | Active-high by default; configurable via register 0x02 for active-low or ignore mode |
| ADD (4) | PMBus address select | Resistor-to-GND sets unique I²C address (0x40–0x4F); enables multi-module bus management |
| VS+ (5) | Non-inverting voltage sense input | Kelvin connection to load-side feedback divider; requires 100pF capacitor to VS− |
| VS− (6) | Inverting voltage sense input | Kelvin ground reference at load; completes remote sense loop for ±0.5% regulation accuracy |
| SYNC (7) | External clock synchronization input | Accepts 732–894kHz clock for phase alignment; configured via registers 0xFE55 and 0x37 |
| 3V3 (8) | Digital logic supply | Provides 3.3V power to internal MCU and PMBus interface; requires 60mA typical current |
| GND (9,14,15,19) | Power and signal ground | High-current return paths; must connect to large PCB planes to minimize impedance imbalance |
| 7V0 (10) | Gate driver supply | Supplies 7V rail to internal MOSFET drivers; requires 0.39A typical current and tight regulation |
| VOUT (11,12,13,16,17,18) | High-current output terminals | Six parallel pins carry up to 140A steady-state and 180A transient current; require symmetric PCB layout |
| SCL (20) | PMBus serial clock | Open-drain I²C clock line; supports up to 400kHz bus speed per PMBus specification |
| SDA (21) | PMBus serial data | Open-drain I²C bidirectional data line; supports read/write/send command types |
| VIN (22) | Main input power | Accepts 45–65V input; requires ≥10µF low-ESR ceramic bypass capacitors placed near pin |
Key Features
| Feature | Design Value |
|---|---|
| Digitally programmable control loop | Type 3 compensation with independent adjustment of low/high frequency gain, pole, and zero positions via PMBus registers FE01–FE04 |
| Internal EEPROM fault log | Stores timestamped fault events (OV/UV/current/temp) for post-failure diagnostics without host intervention |
| Parallel operation support | ISHARE and SYNC pins enable seamless 2-phase or N-phase PolyPhase® configurations with automatic current sharing and phase interleaving |
| Remote voltage sensing | VS+/VS− differential pair provides Kelvin sensing at load, eliminating IR drop errors in high-current PCB traces |
| Configurable protection thresholds | VIN UV/OV, IIN OC, POUT OP, and VOUT OV limits fully adjustable via PMBus commands and stored in NVM |
Applications
| Server CPU Core Power | AI Accelerator Board Power |
|---|---|
Use Scenario: Delivering 3.3V/140A to high-performance x86 or Arm-based server CPUs with dynamic load steps exceeding 35A/µs. IC Role / Device Role / Timing Role: Primary point-of-load regulator with PMBus telemetry for real-time thermal and current margining. Use Value: ±0.5% output accuracy and 30µs settling time ensure stable core voltage during rapid DVFS transitions. | Use Scenario: Powering GPU or ASIC clusters requiring synchronized multi-rail sequencing and fault-aware operation. IC Role / Device Role / Timing Role: Digitally managed power module in PolyPhase configuration with phase-aligned switching and shared ISHARE bus. Use Value: 93.8% efficiency at full load reduces board-level heat density and simplifies thermal design in 1U chassis. |
| Network Switch ASIC Power | Storage Controller Power |
Use Scenario: Supplying 3.3V to multi-port Ethernet switch ASICs with strict ripple (<5.3mV pk-pk) and EMI requirements. IC Role / Device Role / Timing Role: High-frequency (813kHz) μModule regulator with integrated planar magnetics and low-noise output filtering. Use Value: Quasi-resonant topology minimizes high-voltage switching noise, easing compliance with CISPR 32 Class B emissions. | Use Scenario: Providing reliable 3.3V power to NVMe SSD controllers in enterprise storage arrays with hot-swap capability. IC Role / Device Role / Timing Role: Fault-tolerant regulator with internal EEPROM fault logging and PMBus-triggered graceful shutdown. Use Value: Internal fault log records undervoltage events during power-loss transients, enabling root-cause analysis without external monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current, digitally managed DC/DC module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTM4677IY#PBF | 40A max output, dual-output (0.5–3.3V), same 22mm × 24mm footprint but lower current density | Better suited for multi-rail, lower-current applications where space-constrained dual outputs are needed | Select LTM4677IY#PBF when needing two independent, digitally controlled outputs instead of single 140A rail |
| ISL8272MIRZ-T7A | 120A max output, 40–60V input, no PMBus-uses analog current share and external controller | Requires external sequencer and telemetry IC; lacks integrated EEPROM fault logging and digital loop tuning | Select ISL8272MIRZ-T7A only if PMBus functionality is unnecessary and analog current sharing suffices |
Compared with LTM4677IY#PBF and ISL8272MIRZ-T7A, the LTP8802A-1BIPV#PBF uniquely delivers 140A single-rail output with full PMBus telemetry, programmable compensation, and internal fault logging-enabling autonomous, self-diagnosing power delivery in mission-critical infrastructure.
Availability
LTP8802A-1BIPV#PBF is available at Aetrix Electronics and suitable for server CPU core power, AI accelerator board power, and network switch ASIC power requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LTP8802A-1BIPV#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving precision instrumentation, communications, and power management markets.
The LTP8802A-1BIPV#PBF belongs to Analog Devices' μModule regulator product line, designed specifically for high-efficiency, high-current, digitally managed power delivery in data center and telecom infrastructure where space, thermal, and telemetry constraints are critical.
FAQ
What is the maximum output current capability of the LTP8802A-1BIPV#PBF?
The LTP8802A-1BIPV#PBF delivers up to 140A continuous output current at 3.3V with 45–65V input. Its overcurrent protection threshold is set to 180A, and it achieves this with <60mV output voltage excursion during 35A/µs load steps. Thermal derating curves confirm sustained 140A operation at 125°C junction temperature with 500LFM airflow on an 8-layer PCB.
Does the LTP8802A-1BIPV#PBF support remote voltage sensing?
Yes, the LTP8802A-1BIPV#PBF supports true Kelvin remote sensing via dedicated VS+ and VS− pins. These inputs form a differential feedback path referenced directly at the load, enabling ±0.5% DC output accuracy regardless of PCB trace resistance. The VS+ pin requires a 100pF capacitor to VS−, and feedback resistors must maintain an equivalent parallel resistance below 2kΩ to preserve loop stability.
How is the PMBus address configured on the LTP8802A-1BIPV#PBF?
The PMBus address of the LTP8802A-1BIPV#PBF is set using an external resistor connected from the ADD pin to GND. Table 2 in the datasheet specifies resistor values for addresses 0x40 through 0x4F-for example, 210Ω selects 0x40, and 750Ω selects 0x41. Connecting ADD to 3.3V selects 0x4F. This allows up to 16 LTP8802A-1BIPV#PBF modules on a single PMBus segment without address conflict.
Can multiple LTP8802A-1BIPV#PBF modules be synchronized and current-shared?
Yes, the LTP8802A-1BIPV#PBF supports both synchronization and current sharing via dedicated SYNC and ISHARE pins. Connecting SYNC pins enables phase interleaving in 22.5° increments using register 0x37, while ISHARE interconnection provides analog current balancing across modules. This enables scalable PolyPhase® solutions-e.g., two modules deliver 280A at 3.3V with reduced input/output ripple and improved thermal distribution.
What is the role of the 7V0 and 3V3 pins on the LTP8802A-1BIPV#PBF?
The 7V0 pin supplies power to internal gate drivers and high-voltage circuitry (0.39A typical), while the 3V3 pin powers the digital control system, PMBus interface, and telemetry blocks (60mA typical). Both rails must be within their specified operating ranges (7V0: 6.5–7.5V; 3V3: 3.0–3.6V) before the LTP8802A-1BIPV#PBF enables output. They are internally regulated and must be supplied externally with low-noise, well-bypassed sources.
LTP8802A-1BIPV#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- µModule®
- Package/Case:
- 22-SMD Module
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Linear Regulator Replacement
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 45V
- Voltage - Input (Max):
- 65V
- Voltage - Output 1:
- 0.5 ~ 3.6V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 140A
- Power (Watts):
- 504 W
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- Adjustable Output, Load Sharing, Remote Sense
- Operating Temperature:
- 0°C ~ 125°C
- Efficiency:
- 93.8%
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
LTP8802A-1BIPV#PBF FAQ
1.How can I place an order for LTP8802A-1BIPV#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTP8802A-1BIPV#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 LTP8802A-1BIPV#PBF reliable?
The price and inventory of LTP8802A-1BIPV#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTP8802A-1BIPV#PBF is usually 5 days.
3.What payment methods are accepted for LTP8802A-1BIPV#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTP8802A-1BIPV#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTP8802A-1BIPV#PBF?
LTP8802A-1BIPV#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTP8802A-1BIPV#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 LTP8802A-1BIPV#PBF?
For technical support, including LTP8802A-1BIPV#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTP8802A-1BIPV#PBF requirements.
6.How does Aetrix verify that LTP8802A-1BIPV#PBF is sourced from the original manufacturer or authorized distributors?
All LTP8802A-1BIPV#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 LTP8802A-1BIPV#PBF meets industry standards.
7.What is the process for return or replacement of LTP8802A-1BIPV#PBF?
All LTP8802A-1BIPV#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTP8802A-1BIPV#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 LTP8802A-1BIPV#PBF part is unused and in its original packaging.
Return procedure for LTP8802A-1BIPV#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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