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Infineon Technologies 21-0065PBF
- Part No.:
- 21-0065PBF
- Manufacturer:
- Infineon Technologies
- Package:
- 17-LLGA
- Datasheet:
-
21-0065PBF.pdf
- Description:
- IC REG BUCK ADJ 25A 17LGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,400
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Product details
Overview
iP1827TRPbF from iPOWIR™ is a highly integrated 25A synchronous buck regulator with single-input voltage operation (1.5V–16V), 0.6V–0.75×Vin output range, 0.5% reference accuracy, and programmable switching frequency up to 1.5MHz. It integrates MOSFET drivers, bootstrap diode, remote sense amplifier, and power-good output-designed for high-current, low-voltage point-of-load conversion in server and telecom power systems.
For engineers reviewing the iP1827TRPbF datasheet, iP1827TRPbF pinout, iP1827TRPbF application, or iP1827TRPbF equivalent, key selection factors include its thermally compensated hiccup-mode OCP, pre-bias startup capability, body braking for transient response, ±0.5% VFB accuracy over temperature, and 7.65mm × 7.65mm LGA package with 20-pin layout and dedicated remote sense inputs.
Technical Context
The iP1827 implements a current-mode PWM controller with internal charge pump (PVCC), dual MOSFET drivers, and a precision error amplifier featuring 100–120 dB DC gain and 20–40 MHz GBWP. Its remote sense amplifier provides true load-point voltage regulation with ±3 mV offset and 3–9 MHz unity-gain bandwidth.
Protection architecture includes independent UVLO on VCC (2.6–3.1 V start), PVCC (4.0–4.4 V start), and EN (1.14–1.36 V), plus overvoltage protection via VOSO input, thermal shutdown at TJ = 150°C, and hiccup-mode OCP triggered by OCSET resistor programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 25 A continuous - supports high-density PoL loads without external current sharing |
| Input Voltage Range | 1.5 V to 16 V - enables direct use with 3.3 V, 5 V, or 12 V intermediate bus rails |
| Reference Accuracy | ±0.5 % at 25°C, ±1.5 % over –40°C to +125°C - ensures tight output regulation across industrial temp range |
| Switching Frequency | 225 kHz to 1.65 MHz - adjustable via RT resistor for EMI optimization and inductor size reduction |
| Package Thermal Resistance | Θj-pcb = 2.3 °C/W - enables 25 A operation with minimal board-level heatsinking |
| Remote Sense Bandwidth | 3–9 MHz - rejects high-frequency noise while maintaining stability in fast-transient applications |
| Power Good Accuracy | Window comparator with ±100 mV tolerance - provides reliable system sequencing and fault detection |
Pinout & Package
7.65 mm × 7.65 mm, 20-terminal LGA package with exposed thermal pad; pin 1 marked by corner cutout; requires controlled-impedance PCB layout for SW, PGND, and remote sense traces.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (1) | Main power input | Connects to bulk input capacitor; must be routed with low-inductance path to PGND (pin 3) |
| SW (2) | Switch node | Drives external inductor; high dv/dt node requiring tight loop area and guard ring |
| PGND (3) | Power ground return | Primary return for high-current paths; ties directly to VIN bypass capacitor ground |
| PVCC (4) | Charge pump output | Supplies gate drive for top MOSFET; requires 4.7–10 µF local ceramic decoupling to BIASGND |
| SS (5) | Soft-start timing | Capacitor-to-LGND sets ramp rate; prevents inrush current during startup |
| LGND (6) | Analog reference ground | Isolated signal ground for FB, COMP, and error amplifier; must not share plane with PGND |
| VOSM (7) | Remote sense negative | Connected to load ground; forms differential pair with VOSP for Kelvin sensing |
| VOSP (8) | Remote sense positive | Connected to load output; enables accurate regulation at point of load under PCB IR drop |
| RT (9) | Frequency set | Resistor-to-GND programs switching frequency; value determines oscillator ramp slope |
| VCC (10) | Bias supply input | 3.13–3.46 V nominal; powers internal logic and charge pump; requires 10 µF local decoupling |
| OCSET (11) | Current limit threshold | Resistor from OCSET to SW adjusts OCP trip point below device's intrinsic 25 A rating |
| BIASGND (12) | Driver ground reference | Return for MOSFET gate drivers; must tie to negative terminal of VCC/PVCC capacitors |
| PGD (13) | Open-drain power good | Active-low status flag; requires external pull-up to VCC for system monitoring |
| EN (14) | Enable control | Logic-level input with 1.14–1.36 V threshold; supports precise sequencing with external RC network |
| VOSO (15) | Sense amplifier output | Feeds both power-good and overvoltage comparators; used for load-line compensation |
| COMP (16) | Error amplifier output | Connects to FB via RC network for Type II/III compensation; sets loop stability |
| FB (17) | Feedback input | Inverting input of error amp; accepts direct connection to output or remote sense amplifier output |
Key Features
| Feature | Design Value |
|---|---|
| Integrated MOSFET drivers + bootstrap diode | Eliminates need for external gate drivers or discrete bootstrap components, reducing BOM count and layout complexity |
| True remote sense amplifier | Compensates for PCB trace resistance up to 10 mΩ with <3 mV offset, enabling ±1% output regulation at load |
| Body braking during load transients | Actively sinks current during fast load steps to suppress undershoot, improving dynamic response without increasing output capacitance |
| Thermally compensated hiccup-mode OCP | Reduces average power dissipation during sustained overload while preventing thermal runaway in enclosed environments |
| Pre-bias startup capability | Allows safe turn-on into pre-charged output rail, avoiding reverse current flow and potential damage to downstream circuitry |
Applications
| Server VR12/VR13 Core Power | Telecom Line Card PoL |
|---|---|
Use Scenario: 12 V input to 1.8 V/25 A core supply for multi-core Xeon processors in 1U rack servers. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering tightly regulated CPU core voltage with remote sense feedback. Use Value: Enables compliance with VR12.5/VR13 ±1% output tolerance spec using only one IC and minimal external components. | Use Scenario: Distributed 3.3 V/15 A power for FPGA, SerDes, and PHY ICs on carrier-grade line cards. IC Role / Device Role / Timing Role: Point-of-load regulator with programmable frequency to avoid clock interference with 10G/25G serial links. Use Value: 225–1.65 MHz frequency tuning allows EMI spread-spectrum alignment with system clock domains. |
| Industrial Edge AI Accelerator Board | 5G Radio Unit Baseband Power |
Use Scenario: 48 V intermediate bus converted to 0.8 V/20 A for AI inference ASICs operating at –40°C to +85°C ambient. IC Role / Device Role / Timing Role: High-efficiency buck converter with extended temperature support and hiccup-mode fault handling. Use Value: –40°C to +125°C junction rating and thermal shutdown ensure reliability in uncooled edge enclosures. | Use Scenario: 28 V to 1.0 V/18 A supply for massive MIMO baseband processors in outdoor radio units. IC Role / Device Role / Timing Role: Remote-sensed buck regulator with body braking to maintain voltage within ±30 mV during 10 A/µs load steps. Use Value: Body braking reduces required output capacitance by >30%, saving space and cost on thermally constrained RF boards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP8765GQ-Z (Monolithic Power) | 20 A rated, 2.5–18 V input, no integrated remote sense amplifier, uses external compensation | Lacks Kelvin sensing; requires additional op-amp circuit for load-point regulation | Select when remote sense is unnecessary and board area permits external compensation network |
| TPS546B24A (Texas Instruments) | 40 A rated, 3–18 V input, PMBus interface, digital loop compensation, no integrated bootstrap diode | Supports telemetry and dynamic voltage scaling but requires external gate driver and bootstrap circuit | Select when digital monitoring, margining, or multi-rail coordination is required |
Compared with MP8765GQ-Z and TPS546B24A, the iP1827TRPbF delivers unique integration of remote sense amplifier, bootstrap diode, and body braking in a compact LGA-making it optimal for analog-controlled, high-transient PoL designs where layout simplicity and analog accuracy are prioritized over digital configurability.
Availability
iP1827TRPbF is available at Aetrix Electronics and suitable for server VR12/VR13 core power, telecom line card PoL, and industrial edge AI accelerator board applications requiring stable component supply, full RoHS compliance, and long-lifecycle availability.
Supply support for iP1827TRPbF 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
iPOWIR™ is a product brand of Advanced Analog Solutions, specializing in highly integrated power management ICs for high-performance computing and communications infrastructure.
The iP1827 belongs to the iPOWIR™ family of fully integrated buck regulators designed specifically for high-current, low-voltage point-of-load applications where minimal external components, remote sensing, and robust transient response are critical.
FAQ
What is the minimum output voltage supported by the iP1827TRPbF?
The iP1827TRPbF supports an output voltage range from 0.6 V to 0.75 × VIN. At VIN = 1.5 V, the lowest achievable output is 0.6 V; at higher input voltages, the upper bound scales proportionally. The 0.6 V reference is trimmed to ±0.5% at 25°C and ±1.5% over full temperature range, ensuring stable low-voltage operation for modern SoCs and FPGAs.
Does the iP1827TRPbF require an external bootstrap capacitor?
No. The iP1827TRPbF integrates a charge pump and bootstrap diode, eliminating the need for an external bootstrap capacitor. The PVCC pin supplies the gate drive voltage for the high-side MOSFET and must be decoupled with a 4.7–10 µF ceramic capacitor to BIASGND. This integration simplifies layout and improves reliability in high-density power modules.
How is overcurrent protection configured on the iP1827TRPbF?
Overcurrent protection is configured via the OCSET pin: a resistor connected between OCSET and SW sets the current-limit threshold below the device's intrinsic 25 A rating. The trip point is proportional to the resistor value and SW node voltage swing. Hiccup-mode behavior is thermally compensated, automatically reducing duty cycle during sustained overload to limit junction temperature rise.
Can the iP1827TRPbF operate with a pre-biased output?
Yes. The iP1827TRPbF supports pre-bias startup: it safely turns on into an already charged output rail without forcing reverse current through the output inductor or causing output voltage overshoot. This feature is enabled by internal circuitry that monitors VOSO and disables gate drive until the output reaches a safe level relative to the feedback divider ratio.
21-0065PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- iPOWIR™
- Package/Case:
- 17-LLGA
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.5V
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 12V
- Current - Output:
- 25A
- Frequency - Switching:
- 225kHz ~ 1.65MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 17-LGA (7.65x7.65)
21-0065PBF FAQ
1.How can I place an order for 21-0065PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for 21-0065PBF 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 21-0065PBF reliable?
The price and inventory of 21-0065PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 21-0065PBF is usually 5 days.
3.What payment methods are accepted for 21-0065PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 21-0065PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 21-0065PBF?
21-0065PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 21-0065PBF 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 21-0065PBF?
For technical support, including 21-0065PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 21-0065PBF requirements.
6.How does Aetrix verify that 21-0065PBF is sourced from the original manufacturer or authorized distributors?
All 21-0065PBF 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 21-0065PBF meets industry standards.
7.What is the process for return or replacement of 21-0065PBF?
All 21-0065PBF units undergo pre-shipment inspection (PSI). If there is an issue with 21-0065PBF, 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 21-0065PBF part is unused and in its original packaging.
Return procedure for 21-0065PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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