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Analog Devices Inc./Maxim Integrated MAX15106BGWP+T
- Part No.:
- MAX15106BGWP+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 20-WFBGA, WLCSP
- Datasheet:
-
MAX15106BGWP+T.pdf
- Description:
- IC REG BUCK ADJ 6A 20WLP
- Quantity:
- Payment:
- Shipping:
Inventory:1,711
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Product details
Overview
The MAX15106BGWP+T from Analog Devices is a high-efficiency, current-mode, synchronous step-down switching regulator with integrated power switches, delivering up to 6A output current from a 2.7V–5.5V input, supporting adjustable output voltages from 0.6V to 95% of VIN, and operating at a fixed 1.0MHz switching frequency - ideal for notebook power, DDR memory, and point-of-load regulation in compact portable systems.
For engineers reviewing the MAX15106BGWP+T datasheet, MAX15106BGWP+T pinout, MAX15106BGWP+T application, or MAX15106BGWP+T equivalent, this page delivers verified technical context, validated pin functions, confirmed WLP package dimensions, real-world soft-start and prebias behavior, and two rigorously cross-checked alternative regulators for similar high-current, high-frequency buck applications.
Technical Context
The MAX15106BGWP+T implements peak-current-mode PWM control using a 1.4mS transconductance error amplifier and a 25A/V COMP-to-current-sense transconductance, enabling stable loop compensation with ceramic-only output capacitors. Its 1.0MHz fixed-frequency oscillator ensures fast transient response and minimal external component size.
It integrates low-RDS(ON) high- and low-side MOSFETs, supports forced PWM mode, provides cycle-by-cycle overcurrent protection with 9A high-side current limit, and features safe startup into prebiased outputs via SS voltage threshold detection at 0.58V - all within a thermally optimized 20-bump WLP (2.5mm × 2mm, 0.5mm pitch).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Continuous 6A - supports full-load operation without derating in 4-layer PCB thermal layout. |
| Input Voltage Range | 2.7V to 5.5V - compatible with single-cell Li-ion, USB PD, and intermediate bus rails. |
| Switching Frequency | 1.0MHz (factory-trimmed) - enables use of ≤1µH inductors and all-ceramic output filter design. |
| Feedback Accuracy | ±1% over line, load, and temperature - ensures tight output regulation across industrial temperature range (−40°C to +105°C). |
| Efficiency | Up to 96% - achieved at 5VIN/1.8VOUT/6A due to low RDS(ON) integrated switches and synchronous rectification. |
| Soft-Start Control | Capacitor-programmable (ISS = 10µA) - reduces input inrush current and enables controlled ramp-up into prebiased outputs. |
| Thermal Protection | Thermal shutdown at +160°C with +25°C hysteresis - prevents permanent damage during sustained overload or poor airflow conditions. |
Pinout & Package
The MAX15106BGWP+T is housed in a 20-bump Wafer-Level Package (WLP), measuring 2.5mm × 2mm with 0.5mm pitch and a 4 × 5 bump array. The package is RoHS-compliant and qualified for reflow per JEDEC JESD22-A113 (IR/VPR profile only); hand/wave soldering is prohibited.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1, A5, B1, C1, D1 | PGND | Power ground return for both high- and low-side switches; must connect directly to solid PGND plane under IC. |
| A2, A3, B2, C2 | LX | Switch node connecting to inductor; carries high di/dt; requires short, low-inductance routing to minimize EMI. |
| A4 | PGOOD | Open-drain power-good signal asserting low when FB < 530mV; requires external pull-up for sequencing. |
| B3, C3, D3 | IN | Main input supply (2.7V–5.5V); bypassed with ≥10µF ceramic capacitor to PGND near package. |
| B4, C4 | I.C. | Internally connected; must remain unconnected on PCB. |
| B5 | FB | Feedback input sensing output voltage divider; 600mV nominal threshold with ±6mV tolerance over temp. |
| C5 | SS | Soft-start timing and external reference input; 10µA sourcing current sets ramp time; accepts 0V to VIN−1.5V external reference. |
| D2 | INX | Control-section input bump; electrically tied to IN - must be connected to same net as IN. |
| D4 | EN | Enable input with 1.3V high-threshold; drives high to activate regulator; connect to IN for always-on operation. |
| D5 | COMP | Error amplifier output; connects to RC compensation network to SGND to stabilize voltage loop. |
Key Features
| Feature | Design Value |
|---|---|
| Current-mode PWM architecture | Enables stable compensation with ceramic-only output caps and fast load-transient response (<200µs recovery at 6A step). |
| Safe prebiased startup | Prevents output discharge by holding both MOSFETs off until SS crosses FB voltage - critical for DDR and multi-rail sequencing. |
| Integrated 6A power switches | Eliminates discrete MOSFET selection, gate drivers, and layout complexity while maintaining >95% efficiency at full load. |
| Programmable soft-start | Reduces input inrush current by controlling dVOUT/dt; avoids tripping upstream current limits during cold start. |
| Full fault protection suite | Includes cycle-by-cycle overcurrent, thermal shutdown (+160°C), input UVLO (2.7V threshold), and hiccup-mode recovery. |
Applications
| DDR Memory Power | Notebook Core Voltage |
|---|---|
Use Scenario: Supplying VDDQ to DDR4/DDR5 memory modules requiring tight voltage tolerance and fast transient response during burst read/write cycles. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering 1.2V/1.1V at up to 6A with ±1% accuracy and <100mV droop under 4A/µs load steps. Use Value: Enables first-pass DDR compliance by meeting JEDEC AC timing specs through sub-200ns transient recovery and low-output-impedance ceramic filtering. | Use Scenario: Regulating CPU/GPU core voltage in ultra-thin notebooks where board space and thermal headroom are constrained. IC Role / Device Role / Timing Role: High-frequency (1.0MHz) buck converter generating 0.8V–1.35V from 3.3V/5V intermediate rail with programmable soft-start for coordinated power-up. Use Value: Reduces solution footprint by 40% vs. discrete solutions and eliminates external driver components while sustaining >94% efficiency at 5A. |
| Base Station RF Power Amplifier Bias | Distributed Point-of-Load Regulation |
Use Scenario: Providing clean, well-regulated bias voltage to GaN/LDMOS RF power amplifiers in small-cell base stations with strict EMI limits. IC Role / Device Role / Timing Role: Low-noise, forced-PWM buck regulator delivering 5V/3.3V at 4A with spread-spectrum-capable clock and minimized switching noise coupling. Use Value: Meets 3GPP spectral mask requirements by suppressing switching harmonics above 1GHz via 1.0MHz fundamental frequency and optimized LX layout. | Use Scenario: Local regulation for FPGA I/O banks, ADC/DAC analog supplies, or PCIe SerDes rails in industrial edge compute platforms. IC Role / Device Role / Timing Role: Compact, thermally robust POL regulator supporting multiple independent 0.6V–3.3V outputs with enable-controlled sequencing and PGOOD monitoring. Use Value: Simplifies system-level power architecture by replacing three discrete regulators with one WLP device per rail, reducing BOM count and layout iterations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS546B24RVFT | 4.5V–18V input, 6A output, 500kHz–2MHz adjustable frequency; larger 28-pin QFN (4.5mm × 3.5mm); includes PMBus interface. | Targets higher-input industrial/motor-control rails; lacks prebias-safe startup and fixed 1.0MHz operation. | Select when wide VIN range, digital telemetry, or higher thermal margin (>125°C junction) is required - not drop-in for MAX15106BGWP+T's 2.7V–5.5V domain. |
| RTQ2134BGQW | 2.7V–6.0V input, 6A output, 1.0MHz fixed frequency; 20-pin QFN (3mm × 3mm); no external reference input on SS pin. | Offers identical VIN/VOUT range and frequency but omits SS-as-reference capability and uses different soft-start current (8µA vs. 10µA). | Choose for cost-sensitive designs needing same electrical envelope but without external tracking requirement - requires minor compensation review due to different gm and ramp slope. |
Compared with TPS546B24RVFT and RTQ2134BGQW, the MAX15106BGWP+T uniquely combines 2.7V minimum input, prebias-safe startup, SS-as-reference flexibility, and 2.5mm × 2mm WLP footprint - making it optimal for space-constrained, battery-fed, multi-rail portable systems where layout simplicity and sequencing integrity are critical.
Availability
The MAX15106BGWP+T is available at Aetrix Electronics and suitable for notebook power, DDR memory, base station RF bias, distributed point-of-load regulation, and portable device power management requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX15106BGWP+T 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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA, with deep expertise in power management ICs for precision, efficiency, and reliability-critical applications.
The MAX15106 family belongs to ADI's high-density, high-efficiency DC-DC regulator product line, designed specifically for compact, thermally constrained point-of-load applications in portable, communications, and computing systems demanding 6A output in minimal footprint.
FAQ
What is the exact switching frequency of the MAX15106BGWP+T?
The MAX15106BGWP+T operates at a factory-trimmed fixed switching frequency of 1.0MHz, with typical variation of ±10% (850kHz to 1150kHz) over temperature and input voltage. This frequency is specified in the Electrical Characteristics table under "Oscillator" and enables compact magnetic design with sub-1µH inductors and all-ceramic output filters - a key differentiator from variable-frequency or lower-frequency alternatives. The MAX15106BGWP+T does not support frequency adjustment via external components.
Does the MAX15106BGWP+T support startup into a prebiased output, and how does it behave?
Yes, the MAX15106BGWP+T safely starts into a prebiased output without discharging the output capacitor. During prebias startup, both high- and low-side MOSFETs remain off until the SS pin voltage exceeds the FB voltage (≈0.6V), at which point PWM operation begins. This prevents reverse current flow and maintains output voltage integrity - essential for DDR memory and multi-rail systems. The MAX15106BGWP+T also includes a dedicated 0.58V SS threshold to force startup initiation, ensuring reliable sequencing even with elevated prebias levels.
What is the function of the SS pin on the MAX15106BGWP+T beyond soft-start timing?
Beyond setting soft-start time via an external capacitor, the SS pin on the MAX15106BGWP+T serves as an external reference input, accepting a steady-state voltage from 0V to VIN − 1.5V. When driven externally, SS overrides internal soft-start and enables precise output voltage tracking (e.g., for dynamic voltage scaling). The MAX15106BGWP+T requires an external RC network (RSS ≈ 1kΩ) to ensure proper SS discharge during hiccup mode - a design detail confirmed in the Functional Diagram and Applications Information sections of the datasheet.
What thermal limitations apply to the MAX15106BGWP+T in continuous 6A operation?
The MAX15106BGWP+T is rated for continuous 6A output across −40°C to +105°C ambient, provided the PCB layout follows the four-layer thermal guidelines: θJA = 47°C/W, maximum junction temperature = +125°C, and thermal shutdown triggers at +160°C with +25°C hysteresis. At 6A and 5VIN/1.2VOUT, power dissipation is ~1.2W; on a standard four-layer board with 2oz copper and thermal vias under the WLP, junction temperature rise is ~56°C - well within safe margin. Derating is required above +70°C board temperature per the 21.3mW/°C spec.
How does the MAX15106BGWP+T implement overcurrent protection, and what happens during sustained overload?
The MAX15106BGWP+T uses cycle-by-cycle overcurrent protection with a 9A high-side current-limit threshold. Under sustained overload, it enters hiccup mode after eight consecutive current-limit events: SS is discharged, switching halts for 1024 clock cycles (~1ms at 1.0MHz), then a new soft-start sequence begins. This protects against thermal runaway while allowing automatic recovery - unlike latch-off schemes that require external reset. The MAX15106BGWP+T also includes independent low-side sink/source current limiting (7A/9A) to safeguard during prebias startup and reverse-current conditions.
MAX15106BGWP+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-WFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.225V
- Current - Output:
- 6A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-WLP
MAX15106BGWP+T FAQ
1.How can I place an order for MAX15106BGWP+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX15106BGWP+T 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 MAX15106BGWP+T reliable?
The price and inventory of MAX15106BGWP+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX15106BGWP+T is usually 5 days.
3.What payment methods are accepted for MAX15106BGWP+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX15106BGWP+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX15106BGWP+T?
MAX15106BGWP+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX15106BGWP+T 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 MAX15106BGWP+T?
For technical support, including MAX15106BGWP+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX15106BGWP+T requirements.
6.How does Aetrix verify that MAX15106BGWP+T is sourced from the original manufacturer or authorized distributors?
All MAX15106BGWP+T 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 MAX15106BGWP+T meets industry standards.
7.What is the process for return or replacement of MAX15106BGWP+T?
All MAX15106BGWP+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX15106BGWP+T, 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 MAX15106BGWP+T part is unused and in its original packaging.
Return procedure for MAX15106BGWP+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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