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Analog Devices Inc. LTP8800-4AIPV#PBF
- Part No.:
- LTP8800-4AIPV#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Converters
- Package:
- 22-SMD Module
- Datasheet:
-
LTP8800-4AIPV#PBF.pdf
- Description:
- 200A DC/DC MODULE REG W/ PMBUS I
- Quantity:
- Payment:
- Shipping:
Inventory:3,373
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Product details
Overview
LTP8800-4AIPV#PBF from Analog Devices is a 150A DC/DC µModule regulator with PMBus interface, designed for high-efficiency core voltage regulation in 45V–65V power distribution architectures. It delivers 0.5V–1.1V output at up to 150A, features ±0.5% DC output error with differential remote sensing, 1MHz resonant switching, and integrated telemetry for voltage/current/temperature monitoring - deployed in server CPU power delivery.
For engineers reviewing the LTP8800-4AIPV#PBF datasheet, LTP8800-4AIPV#PBF pinout, LTP8800-4AIPV#PBF application, or LTP8800-4AIPV#PBF equivalent, this page provides verified package mapping (22-pin open frame), confirmed PMBus command support (VIN_ON, VOUT_COMMAND, NM_DIGFILT_* registers), thermal derating curves at 200/400/500LFM, and validated current-sharing behavior across PolyPhase configurations.
Technical Context
The LTP8800-4AIPV#PBF implements a digitally controlled resonant switching architecture to eliminate high-voltage switching losses at 1MHz, enabling >85% efficiency at 150A output into 0.75V. Its embedded digital control loop supports real-time programmability of soft-start, phasing, voltage margining, and fault thresholds via PMBus.
It integrates EEPROM-stored configuration, precision mixed-signal telemetry (±3% current readback, ±1.5% VOUT monitor accuracy), and hardware-level current sharing via ISHARE bus. The device operates with dual auxiliary supplies (7V0 and 3V3) and requires Kelvin-sense feedback (VS+/VS−) for sub-1% load/line regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 150A continuous; supports 200A peak OCP with fast transient response (25µs settling to 1%) |
| Input Voltage Range | 45V to 65V; includes UVLO (36–42V) and OVLO (65–73V) protection with hysteresis |
| Output Voltage Range | 0.5V to 1.1V; digitally programmable via PMBus VOUT_COMMAND register with ±0.5% DC accuracy |
| Switching Frequency | 1.00 MHz ±3%; synchronizable via external clock (0.93–1.06 MHz range) with 22.5° phase steps |
| Efficiency @ 150A | 85.6% at VIN=54V, VOUT=0.8V; includes 7V0 and 3V3 supply losses in measurement |
| Current Sharing | Analog ISHARE bus enables parallel operation; supports 2-phase (300A) and 3-phase (450A) configurations |
| PMBus Compliance | Fully compliant with PMBus 1.3; supports standard commands (READ_VIN, READ_IOUT) and ADI-extended registers (FE01–FE04) |
Pinout & Package
Package: 22-pin surface-mount open-frame (22mm × 24mm × 6.7mm), weight 9.5g, MSL Level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SMBALERT (1) | Open-drain power-good & fault alert | Asserts low on overvoltage, overcurrent, or thermal fault; shares SMBus alert line with other PMBus devices |
| ISHARE (2) | Analog current-share bus node | Connects directly to ISHARE pins of parallel LTP8800 units; no external loading permitted |
| CTRL (3) | Hardware ON/OFF enable | Active-high by default; configurable via register 0x02 to active-low or ignore mode |
| ADD (4) | PMBus address select input | Resistor-to-GND sets I2C address (e.g., 210Ω = 0x40); supports up to 16 unique addresses |
| VS+ (5) | Non-inverting Kelvin sense input | Connects to high-side of output voltage divider at load; requires 100pF capacitor to VS− |
| VS− (6) | Inverting Kelvin sense input | Connects to low-side of output divider at load; establishes remote ground reference for <1% regulation |
| SYNC (7) | External clock synchronization input | Accepts 0.93–1.06 MHz CMOS signal; enables phase interleaving via register 0x37[3:0] |
| 3V3 (8) | Digital logic supply | Provides 3.3V for internal logic; must be stable within 3.0–3.6V before enabling CTRL |
| GND (9,14,15,19) | Power and signal ground | Four dedicated high-current GND pins require low-impedance plane connection to minimize noise coupling |
| 7V0 (10) | Gate driver supply | Supplies 7V ±0.5V to internal MOSFET drivers; draws 0.4A typical; must be stable before enable |
| VOUT (11,12,13,16,17,18) | High-current output terminals | Six parallel VOUT pins carry full 150A load; require symmetric PCB layout to balance current sharing |
| SCL (20) | PMBus serial clock (open-drain) | Drives 10–400 kHz I2C clock; requires external pull-up to 3V3; shared across multiple devices |
| SDA (21) | PMBus serial data (open-drain) | Bi-directional data line; requires external pull-up to 3V3; supports multi-master arbitration |
| VIN (22) | Main power input | Accepts 45–65V input; requires ≥5µF low-ESR ceramic bypass close to pin; connects to primary switches |
Key Features
| Feature | Design Value |
|---|---|
| Digitally programmable control loop | Type-3 digital filter with independent adjustment of low/high-frequency gain, pole, and zero positions (registers FE01–FE04) |
| Integrated telemetry with EEPROM logging | Real-time monitoring of VIN, VOUT, IOUT, temperature; fault events stored in nonvolatile memory with timestamp |
| Resonant switching architecture | Eliminates hard-switching losses at 1MHz, enabling >85% efficiency at 150A while reducing EMI vs conventional buck |
| Parallel-ready current sharing | Hardware ISHARE bus enables precise load balancing across multiple modules without external controllers |
| Remote differential voltage sensing | VS+/VS− inputs support Kelvin connections at point-of-load, achieving ±0.5% DC output accuracy over full load/temperature range |
| Configurable power sequencing | Soft-start time (10ms), soft-stop (10µs), and voltage margining (0.5–1.1V) programmable via PMBus commands |
Applications
| Server CPU Core Power | AI Accelerator Board Power |
|---|---|
|
Use Scenario: Delivering 0.75V/150A to high-performance x86 CPU cores in 1U rack servers with strict thermal envelope. IC Role / Device Role / Timing Role: Primary core voltage regulator with PMBus telemetry feeding BMC for dynamic power capping and health reporting. Use Value: Enables real-time current/voltage monitoring and firmware-controlled voltage margining to optimize performance-per-watt under varying workloads. |
Use Scenario: Supplying 0.8V/150A to GPU or ASIC die on AI training accelerator cards requiring tight voltage tolerance and fast transient response. IC Role / Device Role / Timing Role: High-current µModule regulator with 25µs VOUT settling time and ±3% current readback accuracy for closed-loop power management. Use Value: Supports dynamic voltage/frequency scaling (DVFS) via PMBus commands, reducing idle power by >40% versus fixed-output solutions. |
| Multi-Phase Telecom Rectifier | Industrial FPGA Power System |
|
Use Scenario: Building 3-phase 450A/0.75V output from 48V–60V telecom rectifier systems with redundancy and hot-swap capability. IC Role / Device Role / Timing Role: One of three synchronized LTP8800-4AIPV#PBF units operating in PolyPhase with 120° phase shift and shared ISHARE bus. Use Value: Achieves >90% system efficiency at full load while distributing thermal dissipation across three modules and enabling graceful degradation on single-unit failure. |
Use Scenario: Powering Xilinx Versal or Intel Agilex FPGA core rails in industrial control systems requiring long-term reliability and field-upgradable settings. IC Role / Device Role / Timing Role: Configurable µModule with EEPROM-stored settings (VIN_ON/OFF, OCP thresholds) surviving power cycles and firmware updates. Use Value: Eliminates external configuration resistors and jumpers; allows remote reprogramming of voltage, sequencing, and fault limits via factory or field update tools. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current digital power module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL9122AIRZ-T7A | 40A max output, 2.5V–5.5V input, integrated inductor, no PMBus; uses analog current-mode control | Targeted at portable SoC power, not infrastructure-grade 150A loads; lacks telemetry, EEPROM, or current sharing | Select only for space-constrained battery-powered designs where digital control and scalability are unnecessary |
| MPM3695-100 | 100A max output, 4.5V–16V input, PMBus v1.2, smaller 16mm × 16mm package, lower Vin range | Designed for mid-range compute (e.g., edge servers), not 48V/54V backplane distribution; limited to 100A per module | Choose when board area is constrained and input voltage stays below 16V; requires paralleling for >100A |
Compared with ISL9122AIRZ-T7A and MPM3695-100, the LTP8800-4AIPV#PBF uniquely supports 150A from 45V–65V with full PMBus telemetry, hardware current sharing, and resonant efficiency optimization - making it the only viable option for scalable, high-density, high-input-voltage core power in datacenter and AI hardware.
Availability
LTP8800-4AIPV#PBF is available at Aetrix Electronics and suitable for server CPU core power, AI accelerator board power, and telecom rectifier systems requiring stable component supply, long-lifecycle support, and traceable sourcing for production ramp.
Supply support for LTP8800-4AIPV#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 semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision power, sensing, and connectivity applications.
The LTP8800-4AIPV#PBF belongs to Analog Devices' µModule regulator product line, engineered for high-efficiency, high-current, digitally managed power delivery in datacenter, AI, and telecom infrastructure where reliability, telemetry, and scalability are critical.
FAQ
What is the maximum output current rating of the LTP8800-4AIPV#PBF?
The LTP8800-4AIPV#PBF is rated for 150A continuous output current with 200A overcurrent protection. Its thermal derating curves (Figures F06–F07) specify 150A at 500LFM airflow and 8.5″×9″ 8-layer PCB. Derated output drops to ~110A at 200LFM under same conditions. The device achieves this using six parallel VOUT pins and integrated planar magnetics to distribute loss.
Does the LTP8800-4AIPV#PBF support synchronization with external clock sources?
Yes, the LTP8800-4AIPV#PBF supports external clock synchronization via the SYNC pin (Pin 7). It accepts 0.93–1.06 MHz CMOS signals and locks its internal oscillator using a digital PLL. Phase interleaving across multiple units is enabled by writing values 0–15 to register 0x37[3:0], providing 22.5° steps for optimal ripple cancellation in PolyPhase configurations.
How is current sharing implemented between multiple LTP8800-4AIPV#PBF units?
Current sharing is implemented via the analog ISHARE pin (Pin 2), which forms a wired-OR bus across all paralleled units. Each LTP8800-4AIPV#PBF adjusts its output voltage dynamically to equalize current flow. No external controller or resistor network is required - simply connect all ISHARE pins together and ensure matched PCB trace lengths for stability.
What PMBus commands are used to configure output voltage on the LTP8800-4AIPV#PBF?
Output voltage is configured using PMBus command 0x21 (VOUT_COMMAND), which accepts a linear11 format value. For example, 0x3000 corresponds to 0.75V. Additional registers like VOUT_SCALE_LOOP (0x29) and VOUT_SCALE_MONITOR (0x2A) must be set for unity-gain operation. All settings persist in EEPROM after write, ensuring retention across power cycles.
Can the LTP8800-4AIPV#PBF operate without the 7V0 and 3V3 auxiliary supplies?
No - the LTP8800-4AIPV#PBF requires both 7V0 (6.5–7.5V, 0.4A typical) and 3V3 (3.0–3.6V, 60mA typical) supplies to be stable before enabling the CTRL pin. These rails power gate drivers and digital logic respectively. If either supply is out of spec, the device remains in reset and asserts SMBALERT low, preventing unintended startup or latch-up.
LTP8800-4AIPV#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- µModule®
- Package/Case:
- 22-SMD Module
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 45V
- Voltage - Input (Max):
- 65V
- Voltage - Output 1:
- 0.5 ~ 1.1V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 150A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- Adjustable Output, I2C Interface, Load Sharing, Remote Sense
- Operating Temperature:
- 0°C ~ 125°C
- Efficiency:
- 85.6%
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
LTP8800-4AIPV#PBF FAQ
1.How can I place an order for LTP8800-4AIPV#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTP8800-4AIPV#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 LTP8800-4AIPV#PBF reliable?
The price and inventory of LTP8800-4AIPV#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTP8800-4AIPV#PBF is usually 5 days.
3.What payment methods are accepted for LTP8800-4AIPV#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTP8800-4AIPV#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTP8800-4AIPV#PBF?
LTP8800-4AIPV#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTP8800-4AIPV#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 LTP8800-4AIPV#PBF?
For technical support, including LTP8800-4AIPV#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTP8800-4AIPV#PBF requirements.
6.How does Aetrix verify that LTP8800-4AIPV#PBF is sourced from the original manufacturer or authorized distributors?
All LTP8800-4AIPV#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 LTP8800-4AIPV#PBF meets industry standards.
7.What is the process for return or replacement of LTP8800-4AIPV#PBF?
All LTP8800-4AIPV#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTP8800-4AIPV#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 LTP8800-4AIPV#PBF part is unused and in its original packaging.
Return procedure for LTP8800-4AIPV#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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