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Renesas DA9215-XXFS1
- Part No.:
- DA9215-XXFS1
- Manufacturer:
- Renesas
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DA9215-XXFS1.pdf
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Product details
Overview
DA9215-XXFS1 from Renesas Electronics is a multi-phase power management IC integrating a 3-phase 15 A buck converter (Buck A) and a single-phase 5 A 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-XXFS1 datasheet, DA9215-XXFS1 pinout, DA9215-XXFS1 application, or DA9215-XXFS1 equivalent, key selection criteria include phase allocation (Buck A: phases A1/A2/B2; Buck B: phase B1), I²C/SPI-compatible interface with configurable address via GPI, dynamic voltage control (DVC) support, integrated over-temperature/over-current protection, and WL-CSP or VFBGA 66-ball packaging.
Technical Context
The DA9215-XXFS1 implements two independent synchronous buck regulators: Buck A uses three phases (A1, A2, B2) for high-current 15 A delivery with automatic phase shedding, while Buck B uses one phase (B1) for dedicated 5 A output. Both support PWM and PFM modes, with programmable soft-start (50 µs typical startup to 1.0 V) and adjustable current limit per phase (4–7 A range).
It integrates all power switches (PMOS/NMOS with 26–27 mΩ / 18–19 mΩ on-resistance), eliminates need for external FETs or Schottky diodes, and supports remote voltage sensing via FBAP/FBAN (Buck A) and FBBP/FBBN (Buck B). The digital core includes OTP memory, 2-/4-wire interface logic, and GPIO extender functionality with five configurable pins (GPI0, GPI1, GPIO2, SO/GPIO3, nCS/GPI4).
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 portable power rails. |
| Output Voltage Range | 0.3 V to 1.57 V (programmable); up to 4.3 V with external resistor divider - supports core voltage scaling for modern APs/GPUs. |
| Max Output Current | 15 A (Buck A, 3-phase) + 5 A (Buck B, 1-phase) - enables dual-rail power delivery for heterogeneous SoC architectures. |
| Switching Frequency | 3 MHz nominal - allows use of compact 0.22 µH inductors and reduces output capacitor count. |
| Output Accuracy | ±1% (static), ±3% (dynamic) - ensures tight regulation under fast load transients (10 A/µs capability). |
| Interface | I²C/SPI-compatible 2-/4-wire bus with configurable I²C address via GPI - enables multi-device coexistence on shared bus. |
| Operating Temperature | −40 °C to +85 °C ambient - qualified for consumer mobile and industrial edge device environments. |
Pinout & Package
DA9215-XXFS1 is available in two package variants: 66-ball WL-CSP (0.4 mm pitch) and 66-ball VFBGA (0.5 mm pitch), both supporting identical pin mapping and thermal performance. Package choice depends on board assembly capability and routing density requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX_A1, LX_A2, LX_B2 | Switching node (Buck A phases) | Connects to inductor for Buck A's three-phase operation (A1, A2, B2); requires low-inductance layout for EMI control. |
| LX_B1 | Switching node (Buck B phase) | Connects to inductor for Buck B's single-phase operation; isolated routing prevents coupling with Buck A nodes. |
| FBAP / FBAN | Sense inputs (Buck A) | Remote feedback pair for Buck A - placed at point-of-load to compensate PCB IR drop and ensure accurate regulation. |
| FBBP / FBBN | Sense inputs (Buck B) | Remote feedback pair for Buck B - enables independent closed-loop control of second output rail. |
| VDD_A1/VDD_A2/VDD_B1/VDD_B2 | Phase supply inputs | Each connects directly to VSYS - decoupling required per phase to suppress switching noise and maintain gate drive stability. |
| IC_EN | Enable input | Active-high logic signal controlling global power-up sequence; must be asserted after VSYS stabilization. |
| nIRQ | Interrupt output | Open-drain signal indicating fault conditions (OCP, OTP, UVLO) - pulls low to alert host processor asynchronously. |
| SDA / SCL / nCS / SO | 2-/4-wire interface | Supports I²C (SDA/SCL) or SPI-like (nCS/SO/SCL) communication; nCS polarity and clock phase configurable via registers. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power Switches | Full PMOS/NMOS synchronous rectification per phase eliminates external FETs and Schottky diodes, reducing BOM count and layout area. |
| Dynamic Voltage Control (DVC) | Enables real-time VOUT adjustment via register writes or dedicated DVS pin - supports DVFS for CPU/GPU power optimization. |
| Automatic Phase Shedding | Reduces active phases under light load (e.g., Buck A drops from 3→1 phase), improving efficiency below 30% load without software intervention. |
| Remote Sensing Architecture | Dual independent sense pairs (FBAP/FBAN + FBBP/FBBN) eliminate PCB trace resistance error, maintaining ±1% accuracy at point-of-load. |
| Configurable I²C Address | GPI0 pin selects between two I²C addresses - allows stacking multiple DA9215-XXFS1 devices on same bus for multi-rail scalability. |
Applications
| Smartphone Application | Tablet PC Application |
|---|---|
|
Use Scenario: Dual-rail power delivery for application processor (core + GPU) and DDR memory subsystem in compact smartphone form factor. IC Role / Device Role / Timing Role: DA9215-XXFS1 acts as primary PMIC supplying 15 A to CPU/GPU cluster (Buck A) and 5 A to DDR I/O (Buck B), with synchronized DVC response to workload changes. Use Value: Enables sub-1 V core voltages with <±1% accuracy and 3 MHz switching, reducing output capacitance by 40% versus 1 MHz solutions while meeting 10 A/µs transient demand. |
Use Scenario: Independent voltage regulation for high-performance SoC and auxiliary peripherals (e.g., display interface, camera ISP) in 8–10 inch tablet platforms. IC Role / Device Role / Timing Role: DA9215-XXFS1 provides Buck A for SoC core domain and Buck B for always-on peripheral rail, each with dedicated remote sensing and programmable soft-start timing. Use Value: Eliminates need for discrete DC-DC controllers and external FETs, cutting solution size by >35% and simplifying thermal design with integrated OCP/OTP protection. |
| Ultrabook Platform | Mobile Media Player |
|
Use Scenario: Compact, high-efficiency power solution for fanless ultrabooks requiring low-noise, thermally constrained CPU voltage regulation. IC Role / Device Role / Timing Role: DA9215-XXFS1 delivers Buck A (15 A) to CPU and Buck B (5 A) to platform controller hub (PCH), using PFM mode during idle to achieve <130 µA quiescent current. Use Value: 3 MHz operation avoids audible noise; WL-CSP package enables direct die-down mounting on thin PCBs, improving thermal coupling to heatsink. |
Use Scenario: Single-chip power management for portable media players with multi-core audio/video processors and LPDDR memory. IC Role / Device Role / Timing Role: DA9215-XXFS1 supplies Buck A to application SoC and Buck B to audio codec/SD card interface, coordinated via shared I²C bus with host MCU. Use Value: Integrated GPIO extender (GPI0/GPI1/GPIO2/SO/nCS) replaces discrete level shifters, reducing interconnect complexity and enabling firmware-controlled rail sequencing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-phase buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DA9214-XXFS1 | Two independent dual-phase buck converters (2 × 10 A), no Buck A/B asymmetry; shares same pinout and interface but different phase allocation logic. | Better suited for symmetric dual-rail systems (e.g., dual CPU clusters), not asymmetric CPU+DDR configurations. | Select DA9214-XXFS1 only when equal 10 A rails are required; DA9215-XXFS1 is superior for CPU+DDR split with 15 A + 5 A allocation. |
| RTQ2132B-QT | Single 16 A 3-phase buck (no secondary rail); supports 2.5–5.5 V input, 0.3–1.5375 V output, but lacks integrated DVC pin and remote sense for secondary output. | Targeted at single-rail high-current applications; cannot replace DA9215-XXFS1's dual-output capability without adding a second IC. | Choose RTQ2132B-QT only for cost-sensitive single-rail designs; DA9215-XXFS1 remains necessary where independent dual-rail control and DVC are mandatory. |
Compared with DA9214-XXFS1 and RTQ2132B-QT, DA9215-XXFS1 uniquely combines asymmetric multi-phase architecture (15 A + 5 A), dual remote sensing, and hardware DVC support - making it the only option for space-constrained mobile SoCs requiring tightly coupled yet independently regulated core and memory rails.
Availability
DA9215-XXFS1 is available at Aetrix Electronics and suitable for smartphone power delivery, tablet PC SoC supply, and ultrabook CPU/DDR rail applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for DA9215-XXFS1 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 management, and embedded solutions for automotive, industrial, and consumer markets.
The DA9215-XXFS1 belongs to Renesas' DA92xx family of highly integrated PMICs designed specifically for advanced mobile processors - emphasizing fast transient response, minimal external components, and flexible rail configuration for next-generation portable computing.
FAQ
What is the exact phase configuration of DA9215-XXFS1 per its datasheet?
The DA9215-XXFS1 implements a 3-phase + 1-phase architecture: Buck A uses phases A1, A2, and B2 (totaling 15 A), while Buck B uses phase B1 (5 A). This differs from DA9213 (4-phase Buck A) and DA9214 (2×2-phase), and is confirmed in Table 1 and Figure 3 of R16DS0598EJ0361 Rev.03.61. Pin assignments for LX nodes reflect this allocation - LX_B2 is assigned to Buck A, not Buck B.
Does DA9215-XXFS1 support remote sensing on both output rails?
Yes, DA9215-XXFS1 supports full remote sensing on both rails: FBAP/FBAN for Buck A and FBBP/FBBN for Buck B. Per Section 2.2 and Figure 3, FBBP/FBBN are functional for DA9215-XXFS1 (not NC as in DA9213), enabling independent point-of-load regulation for each output with ±1% accuracy under load.
What package options are available for DA9215-XXFS1 and how do they differ electrically?
DA9215-XXFS1 is offered in 66-ball WL-CSP (0.4 mm pitch) and 66-ball VFBGA (0.5 mm pitch). Electrically identical, both packages share the same pinout, thermal resistance specs, and on-resistance values (e.g., RON_PMOS = 26 mΩ for WL-CSP, 27 mΩ for VFBGA). Choice depends solely on assembly process capability and board-level routing constraints.
Can DA9215-XXFS1 operate with only the Buck B rail enabled?
Yes, DA9215-XXFS1 supports independent enable/disable of Buck A and Buck B via register control. Section 5.3.1 confirms ON/OFF mode control per buck, and Table 6 shows separate current limits (BUCKA_ILIM/BUCKB_ILIM), allowing Buck B (5 A rail) to remain active while Buck A is disabled - useful for low-power standby states in mobile SoCs.
What is the minimum output capacitance requirement per phase for DA9215-XXFS1?
Per Table 6 in the datasheet, DA9215-XXFS1 requires ≥23 µF output capacitance per phase (min), with 47 µF recommended. For Buck A (3 phases), total COUT ≥69 µF (23 µF × 3); for Buck B (1 phase), ≥23 µF. These values include voltage/temperature coefficient allowances and are validated for stability across −40 °C to +125 °C junction temperature.
DA9215-XXFS1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
DA9215-XXFS1 FAQ
1.How can I place an order for DA9215-XXFS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DA9215-XXFS1 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-XXFS1 reliable?
The price and inventory of DA9215-XXFS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DA9215-XXFS1 is usually 5 days.
3.What payment methods are accepted for DA9215-XXFS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DA9215-XXFS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DA9215-XXFS1?
DA9215-XXFS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DA9215-XXFS1 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-XXFS1?
For technical support, including DA9215-XXFS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DA9215-XXFS1 requirements.
6.How does Aetrix verify that DA9215-XXFS1 is sourced from the original manufacturer or authorized distributors?
All DA9215-XXFS1 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-XXFS1 meets industry standards.
7.What is the process for return or replacement of DA9215-XXFS1?
All DA9215-XXFS1 units undergo pre-shipment inspection (PSI). If there is an issue with DA9215-XXFS1, 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-XXFS1 part is unused and in its original packaging.
Return procedure for DA9215-XXFS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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