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Renesas DA9214-XXFS1
- Part No.:
- DA9214-XXFS1
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- Renesas
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DA9214-XXFS1.pdf
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Product details
Overview
DA9214-XXFS1 from Renesas Electronics is a dual-output, dual-phase-per-rail PMIC delivering 2 × 10 A output current for CPU/GPU and DDR memory rails in portable applications. It operates from 2.8 V to 5.5 V input, regulates output voltage from 0.3 V to 1.57 V (±1% static accuracy), and supports dynamic voltage control via I²C/SPI interface with 3 MHz switching frequency enabling use of 1 mm-height inductors.
For engineers reviewing the DA9214-XXFS1 datasheet, DA9214-XXFS1 pinout, DA9214-XXFS1 application, or DA9214-XXFS1 equivalent, key selection considerations include its dual-buck architecture with independent phase allocation (Buck A: phases A1/A2; Buck B: phases B1/B2), remote sensing capability at point-of-load (FBAP/FBAN and FBBP/FBBN), integrated power switches (26 mΩ PMOS / 18 mΩ NMOS per phase), and support for programmable soft start and automatic phase shedding.
Technical Context
The DA9214-XXFS1 implements two independent synchronous buck converters - Buck A (phases A1/A2) and Buck B (phases B1/B2) - each operating up to 10 A with 3 MHz nominal switching frequency and PWM/automatic phase-shedding mode selection. Its digital core supports I²C- and SPI-compatible 2-/4-wire interfaces with configurable slave address via GPI0.
Each buck converter features programmable output voltage (0.3–1.57 V in 10 mV steps), ±1% static output accuracy, ±3% dynamic accuracy, and integrated over-current/over-temperature protection. Remote sensing is implemented on both outputs using dedicated differential feedback pairs (FBAP/FBAN for Buck A; FBBP/FBBN for Buck B), ensuring stable 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 Current Capability | 2 × 10 A - independent 10 A rails for CPU/GPU and DDR memory, eliminating need for external current sharing. |
| Switching Frequency | 3 MHz - enables compact 0.22 µH inductors and low-profile (<1 mm) magnetics for space-constrained mobile PCBs. |
| Output Voltage Range | 0.3 V to 1.57 V (programmable in 10 mV steps); extendable to 4.3 V with external resistor divider - supports modern low-voltage SoCs and legacy I/O rails. |
| Output Accuracy | ±1% static (DC), ±3% dynamic - ensures tight regulation during processor load transients up to 10 A/µs. |
| Remote Sensing | Dual differential sense inputs (FBAP/FBAN + FBBP/FBBN) - compensates for IR drop across PCB traces without external op-amps. |
| Protection Features | Integrated over-current, over-temperature, and VDDIO under-voltage lockout - eliminates need for discrete monitoring circuitry. |
| Interface Protocol | I²C- and SPI-compatible 2-/4-wire bus with configurable slave address via GPI0 - allows multi-device coexistence on shared bus. |
Pinout & Package
DA9214-XXFS1 is available in 66-ball WL-CSP (0.4 mm pitch) and 66-ball VFBGA (0.5 mm pitch) packages. Both variants share identical pin mapping per Renesas R16DS0598EJ0361 Rev.03.61.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX_A1, LX_A2 | Switching node (Buck A) | High-frequency AC node connecting internal high-side/low-side FETs to external inductor - requires low-inductance layout and local decoupling. |
| LX_B1, LX_B2 | Switching node (Buck B) | Independent high-frequency AC node for second buck rail - enables separate inductor placement and thermal isolation. |
| FBAP / FBAN | Differential feedback (Buck A) | Remote sense inputs referenced to VSS_ANA - placed directly at CPU/GPU VDD pins to cancel PCB IR drop. |
| FBBP / FBBN | Differential feedback (Buck B) | Remote sense inputs for DDR memory rail - supports independent voltage regulation and stability tuning. |
| VDD_A1/VDD_A2/VDD_B1/VDD_B2 | Phase supply inputs | Connect to VSYS (2.8–5.5 V) - provide gate drive and bias for respective phase power stages; require local 1 µF + 100 nF decoupling. |
| IC_EN | Enable control | Active-high logic input controlling global device power-up sequence and soft-start activation - synchronizes rail enable timing. |
| nIRQ | Interrupt output | Open-drain signal indicating fault conditions (OCP, OTP, UVLO) - connects directly to host processor GPIO for real-time system monitoring. |
| SDA / SCL / nCS / SO | 2-/4-wire interface | Supports I²C (SDA/SCL) or SPI (nCS/SO/SCL) communication - enables dynamic DVC, register read/write, and configuration updates during operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent buck regulators | Enables simultaneous, isolated power delivery to CPU/GPU (Buck A) and DDR memory (Buck B) with no cross-coupling or shared control loop instability. |
| 3 MHz fixed-frequency PWM | Reduces required inductor size by >50% vs. 1 MHz designs, enabling 0.22 µH, 1 mm-height magnetics and shrinking total solution footprint. |
| Programmable soft start | Configurable ramp rate (via BUCKx_UP_CTRL registers) limits inrush current into large output capacitors - prevents input rail collapse during power-on. |
| Dynamic voltage control (DVC) | Real-time VOUT adjustment via register write or dedicated DVS pin - supports DVFS for power/performance optimization in application processors. |
| Automatic phase shedding | Transitions between 2-phase and 1-phase operation based on load current - improves light-load efficiency by disabling unused power stages. |
| Integrated power switches | Eliminates need for external MOSFETs, drivers, or Schottky diodes - reduces BOM count, layout area, and thermal complexity. |
Applications
| Smartphone Application | Tablet PC Application |
|---|---|
|
Use Scenario: Powering multi-core application processor (AP) and LPDDR4/5 memory subsystem in slim form factor smartphones. IC Role / Device Role / Timing Role: Dual-rail PMIC providing tightly regulated, dynamically adjustable VDD_CPU and VDD_DDR rails with sub-100 ns transient response. Use Value: Enables aggressive DVFS scaling and extends battery life via 58 µA PFM quiescent current in Buck A-only mode. |
Use Scenario: Supplying heterogeneous SoC (CPU+GPU+NPU) and dual-channel DDR memory in 8–10 inch tablets with thermal constraints. IC Role / Device Role / Timing Role: Independent buck controllers delivering 10 A each with remote sensing to maintain <±15 mV regulation at point-of-load under 5 A/µs load steps. Use Value: Eliminates need for external current-sense amplifiers and discrete OCP circuits - reduces solution cost and board area by ~35%. |
| Ultrabook Application | Media Player Application |
|
Use Scenario: High-efficiency power delivery to Intel/AMD mobile CPUs and integrated graphics in fanless ultrabooks. IC Role / Device Role / Timing Role: Dual-buck regulator supporting adaptive voltage positioning (AVP) and phase shedding to maintain >90% efficiency from 10 mA to 10 A load range. Use Value: Achieves 130 µA combined PFM quiescent current (Buck A + Buck B enabled) - critical for standby power compliance in Windows Modern Standby. |
Use Scenario: Powering ARM-based media SoC and video decoder/encoder blocks in streaming TV dongles and set-top boxes. IC Role / Device Role / Timing Role: Programmable dual-output PMIC delivering precise 0.85 V core and 1.1 V I/O rails with ±1% accuracy across -40°C to +85°C ambient. Use Value: Integrated thermal shutdown (145°C threshold) and over-current protection prevent field failures without adding discrete supervision ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP8859GQ-Z (Monolithic Power) | Single 20 A buck with external phase interleaving; no native dual-rail independence or remote sensing per rail. | Requires external circuitry for independent DDR rail control; lacks integrated DVC pin and GPIO-configurable I²C address. | Choose when single-rail high-current delivery suffices and board space permits discrete sensing components. |
| TPS65981 (Texas Instruments) | USB-C PD controller with integrated 10 A buck; only one buck output, no second independent rail. | Designed for USB-C power delivery systems - not suitable for dual-rail SoC/DDR architectures requiring simultaneous regulation. | Choose only for USB-C source applications where PD negotiation and single-rail conversion dominate requirements. |
Compared with MP8859GQ-Z and TPS65981, DA9214-XXFS1 uniquely delivers two fully independent, remotely sensed 10 A buck rails with integrated DVC, phase shedding, and dual-interface support - making it the only option among the three qualified for smartphone/tablet SoC power architecture.
Availability
DA9214-XXFS1 is available at Aetrix Electronics and suitable for smartphone, tablet PC, and ultrabook designs requiring stable component supply, long-term lifecycle support, and automotive-grade reliability validation.
Supply support for DA9214-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 DA9214-XXFS1 belongs to Renesas' DA92xx family of multi-phase buck PMICs, engineered specifically for high-efficiency, low-noise, dynamically controllable power delivery to advanced mobile SoCs and memory subsystems.
FAQ
What is the maximum output current supported by DA9214-XXFS1 per rail?
DA9214-XXFS1 delivers up to 10 A per output rail - Buck A (phases A1/A2) and Buck B (phases B1/B2) operate independently, each capable of continuous 10 A output with thermal derating applied above 70°C ambient. The datasheet specifies 5 A/phase maximum, and with two phases per rail, this yields 10 A per rail under recommended PCB layout and cooling conditions.
Does DA9214-XXFS1 support remote sensing on both output rails?
Yes, DA9214-XXFS1 supports true differential remote sensing on both rails: FBAP/FBAN for Buck A and FBBP/FBBN for Buck B. These dedicated analog input pairs connect directly to the point-of-load (e.g., CPU VDD pins or DDR VDDQ pads), compensating for PCB trace resistance and ensuring ±1% regulation accuracy regardless of routing length or copper weight.
Can DA9214-XXFS1 be used with a 1.8 V I/O supply (VDDIO)?
Yes, DA9214-XXFS1 supports VDDIO from 1.2 V to 3.6 V, including 1.8 V. The I²C/SPI interface operates reliably at 1.8 V logic levels, and all GPIOs (GPI0, GPI1, GPIO2, SO, SDA, SCL, nCS) are fully compliant with 1.8 V signaling when VDDIO = 1.8 V - enabling direct interfacing with 1.8 V host processors without level shifters.
What package options are available for DA9214-XXFS1?
DA9214-XXFS1 is offered in two package variants: 66-ball WL-CSP with 0.4 mm pitch and 66-ball VFBGA with 0.5 mm pitch. Both packages share identical pinout and thermal performance characteristics per Renesas R16DS0598EJ0361 Rev.03.61, allowing design reuse across form factors - WL-CSP for ultra-thin mobile devices, VFBGA for higher-reliability industrial layouts.
How does dynamic voltage control (DVC) function on DA9214-XXFS1?
DA9214-XXFS1 implements DVC through two methods: (1) register-based control via I²C/SPI writes to VOUT registers, enabling software-defined voltage scaling; and (2) hardware pin control via the DVS input, allowing direct connection to a DAC or processor GPIO for real-time analog voltage adjustment. This dual-path support enables both OS-driven DVFS and hardware-triggered rail transitions.
DA9214-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:
- -
DA9214-XXFS1 FAQ
1.How can I place an order for DA9214-XXFS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DA9214-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 DA9214-XXFS1 reliable?
The price and inventory of DA9214-XXFS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DA9214-XXFS1 is usually 5 days.
3.What payment methods are accepted for DA9214-XXFS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DA9214-XXFS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DA9214-XXFS1?
DA9214-XXFS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DA9214-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 DA9214-XXFS1?
For technical support, including DA9214-XXFS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DA9214-XXFS1 requirements.
6.How does Aetrix verify that DA9214-XXFS1 is sourced from the original manufacturer or authorized distributors?
All DA9214-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 DA9214-XXFS1 meets industry standards.
7.What is the process for return or replacement of DA9214-XXFS1?
All DA9214-XXFS1 units undergo pre-shipment inspection (PSI). If there is an issue with DA9214-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 DA9214-XXFS1 part is unused and in its original packaging.
Return procedure for DA9214-XXFS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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