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Renesas DA9215-XXUP2
- Part No.:
- DA9215-XXUP2
- Manufacturer:
- Renesas
- Package:
- 66-UFBGA, WLCSP
- Datasheet:
-
DA9215-XXUP2.pdf
- Description:
- IC REG BCK ADJ 5A/15A DL 66WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,459
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Product details
Overview
DA9215-XXUP2 from Renesas Electronics is a multi-phase power management IC integrating a 15 A three-phase buck converter (Buck A) and a 5 A single-phase buck converter (Buck B), optimized for CPU/GPU/DDR rail supply in smartphones and tablets. It operates from 2.8 V to 5.5 V input, delivers programmable output voltage from 0.3 V to 1.57 V (or up to 4.3 V with external resistor divider), and features 3 MHz switching frequency, ±1% static output accuracy, and remote sensing at point of load.
For engineers reviewing the DA9215-XXUP2 datasheet, DA9215-XXUP2 pinout, DA9215-XXUP2 application, or DA9215-XXUP2 equivalent, key selection criteria include its dual-buck architecture (15 A + 5 A), I²C/SPI-compatible interface with configurable address, dynamic voltage control (DVC) support, automatic phase shedding, and WL-CSP/VFBGA package options for space-constrained mobile designs.
Technical Context
The DA9215-XXUP2 implements two independent synchronous buck regulators: Buck A uses three phases (A1, A2, B2) delivering up to 15 A, while Buck B uses one phase (B1) delivering up to 5 A - confirmed by Table 1 and Figure 3. Each buck supports programmable output voltage via internal DAC (10 mV steps) and external resistor divider for extended range.
It integrates fully synchronous power stages with verified RON values: 26 mΩ (PMOS) and 18 mΩ (NMOS) per phase in WL-CSP package, enabling high efficiency at 3 MHz switching. Remote sensing is implemented on FBAP/FBAN (Buck A) and FBBP/FBBN (Buck B), supporting accurate regulation under PCB trace impedance variations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8 V to 5.5 V - compatible with single-cell Li-ion battery systems and wide-input industrial rails. |
| Output Voltage Range | 0.3 V–1.57 V (internal DAC); up to 4.3 V (with external resistor divider) - covers core logic, GPU, and DDR I/O voltage requirements. |
| Max Output Current | 15 A (Buck A, 3-phase) + 5 A (Buck B, 1-phase) - enables discrete rail partitioning for processor subsystems. |
| Switching Frequency | 3 MHz nominal - allows use of compact 0.22 µH inductors and reduces output capacitor count. |
| Output Accuracy | ±1% (static, VOUT ≥ 1 V) - ensures stable core voltage under line/load variation without external calibration. |
| Transient Response | 10 A/µs slew rate - maintains < ±3.5% voltage deviation during rapid CPU load transitions. |
| Interface | I²C/SPI-compatible 2-/4-wire bus with configurable GPI address - supports multi-device coordination on shared bus. |
| Operating Temp | −40 °C to +85 °C ambient - validated for consumer portable and industrial edge computing environments. |
Pinout & Package
DA9215-XXUP2 is available in 66-ball WL-CSP (0.4 mm pitch) and 66-ball VFBGA (0.5 mm pitch) packages. Pin assignments are identical across DA9213/DA9214/DA9215 per Figures 4–5 and Table 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX_A1, LX_A2, LX_B2 | Switching node (Buck A phases 1 & 2, Buck A phase 3) | Connects to inductor output; requires low-inductance layout to minimize EMI and switching loss. |
| LX_B1 | Switching node (Buck B phase 1) | Dedicated node for 5 A rail; isolated routing prevents coupling into high-current Buck A paths. |
| FBAP / FBAN | Remote sense inputs (Buck A) | Direct connection to CPU core VDD pins enables precise regulation despite PCB IR drop. |
| FBBP / FBBN | Remote sense inputs (Buck B) | Enables accurate DDR or GPU I/O rail regulation independent of Buck A feedback path. |
| SCL / SDA / nCS / SO | I²C/SPI interface signals | Supports both 2-wire (I²C) and 4-wire (SPI-like) protocols; nCS polarity configurable via OTP. |
| IC_EN | Enable input | Active-high logic control for full system power sequencing; ties to PMIC enable tree. |
| nIRQ | Interrupt output | Open-drain signal indicating fault conditions (OCP, OTP, UVLO) to host processor. |
| VDDIO | I/O supply rail | Independent 1.2–3.6 V domain decoupled from VSYS - isolates digital interface noise from analog regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Voltage Control (DVC) | Real-time VOUT adjustment via register write or dedicated DVS pin - enables adaptive CPU frequency scaling without software intervention. |
| Automatic Phase Shedding | Reduces active phases under light load (e.g., Buck A drops from 3→1 phase) - improves light-load efficiency by >30% vs fixed-phase operation. |
| Integrated Power Switches | On-die 26 mΩ PMOS / 18 mΩ NMOS per phase (WL-CSP) - eliminates external FETs, Schottky diodes, and associated layout complexity. |
| Remote Sensing | Dual independent sense pairs (FBAP/FBAN + FBBP/FBBN) - maintains ±1% regulation accuracy across 100 mΩ PCB trace resistance. |
| Programmable Soft Start | Configurable ramp time (50–500 µs) via BUCKx_UP_CTRL registers - limits inrush current to < 2 A during power-on, preventing input rail collapse. |
| Over-Current & Thermal Protection | Per-phase current limit (4–7 A, programmable) and junction temperature monitoring (125 °C shutdown) - eliminates need for external current-sense resistors or thermal sensors. |
Applications
| Smartphone Application Processor Rail | Tablet DDR Memory Supply |
|---|---|
Use Scenario: Powers ARM-based application processor cores (e.g., Cortex-A78/A715) during burst workloads with rapid DVFS transitions. IC Role / Device Role / Timing Role: Dual-buck regulator providing independent 0.8 V (Buck A) and 1.1 V (Buck B) rails with synchronized DVC response < 10 µs. Use Value: Maintains ±1.5% core voltage stability during 0→10 A load steps, preventing CPU throttling or crash in camera/video capture mode. | Use Scenario: Supplies LPDDR4/5 memory I/O and termination voltages in 10.1" Android tablets with dual-display output. IC Role / Device Role / Timing Role: Buck B delivers 5 A at 1.8 V with remote sensing to DDR VDDQ/VTT, while Buck A supplies SoC core at 0.9 V. Use Value: Eliminates need for separate DDR power IC; 3 MHz switching enables < 1 mm height solution with 0.22 µH inductors. |
| Ultrabook GPU Core Supply | Media Player SoC Subsystem |
Use Scenario: Powers integrated GPU clusters (e.g., Mali-G78) in fanless ultrabooks during sustained rendering workloads. IC Role / Device Role / Timing Role: Buck A operates in 3-phase mode delivering 15 A at 0.75 V with automatic phase shedding below 3 A load. Use Value: Achieves >92% peak efficiency and < 15 °C junction rise at 12 W dissipation - meets thermal envelope without active cooling. | Use Scenario: Supplies video decoder, audio DSP, and HDMI PHY in 4K media players with standby power < 100 µA. IC Role / Device Role / Timing Role: Buck B powers always-on audio domain at 1.2 V; Buck A powers video processing at 0.85 V with PFM mode activation < 5 mA. Use Value: Reduces no-load quiescent current to 130 µA (IQ_PFM_A3B1), extending battery life by 22% vs fixed-frequency operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-rail DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DA9214-XXUP2 | Two independent dual-phase bucks (2 × 10 A); no 15 A + 5 A split; shares same pinout and interface. | Better suited for dual-core SoCs requiring symmetric high-current rails (e.g., CPU + GPU), not asymmetric CPU + DDR. | Select when balanced 10 A/10 A rail partitioning is required and DVC timing alignment between rails is critical. |
| RTQ2132B-QT | Single 16 A 3-phase buck only (no secondary 5 A rail); supports 2.7–5.5 V input; uses I²C only (no SPI mode). | Lacks independent second buck - requires external LDO or second PMIC for DDR/memory rail. | Choose when board space permits discrete DDR regulation and highest possible 3-phase efficiency (>94%) is prioritized over integration. |
Compared with DA9214-XXUP2, DA9215-XXUP2 provides asymmetric rail capability essential for modern heterogeneous processors, while RTQ2132B-QT trades integration for peak efficiency in single-rail applications - making DA9215-XXUP2 optimal for compact, multi-voltage SoC platforms.
Availability
DA9215-XXUP2 is available at Aetrix Electronics and suitable for smartphone, tablet, and ultrabook designs requiring stable component supply, long-term lifecycle support, and qualified automotive-grade variants (AEC-Q100 option available).
Supply support for DA9215-XXUP2 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
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog power, and connectivity solutions for automotive, industrial, and consumer markets.
The DA9215-XXUP2 belongs to Renesas' DA92xx PMIC family, engineered specifically for high-efficiency, multi-rail power delivery in battery-powered mobile SoCs with aggressive transient response and minimal footprint requirements.
FAQ
What is the maximum output current capability of the DA9215-XXUP2?
The DA9215-XXUP2 delivers up to 15 A from its three-phase Buck A regulator and 5 A from its single-phase Buck B regulator. These outputs are independent and can be configured simultaneously. Per-phase current limit is programmable from 4 A to 7 A, and total device output is validated at 20 A combined load with proper thermal design and 66 WL-CSP package mounting.
Does the DA9215-XXUP2 support remote voltage sensing for both buck regulators?
Yes, the DA9215-XXUP2 supports independent remote sensing for both regulators: FBAP/FBAN for Buck A and FBBP/FBBN for Buck B. This allows direct feedback connection at the point of load (e.g., CPU core pad or DDR VDDQ ball), compensating for PCB trace resistance and ensuring ±1% regulation accuracy even with 100 mΩ interconnect impedance.
Can the DA9215-XXUP2 operate with only one buck enabled?
Yes, the DA9215-XXUP2 supports independent enable/disable of Buck A and Buck B via dedicated register bits (BUCKA_EN and BUCKB_EN). When only Buck B is active, it delivers 5 A with IQ_PFM_A3B1 = 130 µA in PFM mode - ideal for always-on subsystems. Buck A can be disabled to isolate high-current domains during low-power states.
What package options are available for the DA9215-XXUP2?
The DA9215-XXUP2 is offered in two identical-pinout packages: 66-ball WL-CSP (0.4 mm pitch, 2.97 mm × 3.17 mm) and 66-ball VFBGA (0.5 mm pitch, 3.6 mm × 3.6 mm). Both support the full feature set; WL-CSP targets ultra-thin smartphones, while VFBGA eases assembly in larger tablets and ultrabooks.
How does Dynamic Voltage Control (DVC) function on the DA9215-XXUP2?
DVC on the DA9215-XXUP2 allows real-time adjustment of Buck A or Buck B output voltage via either I²C/SPI register writes or a dedicated DVS input pin. The DAC updates output in 10 mV steps within < 10 µs, enabling hardware-triggered voltage scaling synchronized with CPU frequency changes - critical for meeting DVFS timing in ARM big.LITTLE architectures.
DA9215-XXUP2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 66-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable (Programmable)
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.3V
- Voltage - Output (Max):
- 4.3V
- Current - Output:
- 5A, 15A
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 66-WLCSP (4.53x2.51)
DA9215-XXUP2 FAQ
1.How can I place an order for DA9215-XXUP2 through Aetrix?
Please submit a Request for Quotation (RFQ) for DA9215-XXUP2 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 DA9215-XXUP2 reliable?
The price and inventory of DA9215-XXUP2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DA9215-XXUP2 is usually 5 days.
3.What payment methods are accepted for DA9215-XXUP2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DA9215-XXUP2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DA9215-XXUP2?
DA9215-XXUP2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DA9215-XXUP2 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 DA9215-XXUP2?
For technical support, including DA9215-XXUP2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DA9215-XXUP2 requirements.
6.How does Aetrix verify that DA9215-XXUP2 is sourced from the original manufacturer or authorized distributors?
All DA9215-XXUP2 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 DA9215-XXUP2 meets industry standards.
7.What is the process for return or replacement of DA9215-XXUP2?
All DA9215-XXUP2 units undergo pre-shipment inspection (PSI). If there is an issue with DA9215-XXUP2, 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 DA9215-XXUP2 part is unused and in its original packaging.
Return procedure for DA9215-XXUP2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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