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NXP Semiconductors DC6M603X6/15A,135
- Part No.:
- DC6M603X6/15A,135
- Manufacturer:
- NXP Semiconductors
- Package:
- 6-XFBGA, WLCSP
- Datasheet:
-
DC6M603X6/15A,135.pdf
- Description:
- IC REG BUCK 1.5V 650MA 6WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,500
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Product details
Overview
DC6M603X6/15A from NXP Semiconductors is a 6 MHz, 650 mA synchronous step-down DC-DC converter in WLCSP6 package, delivering a fixed 1.5 V output from 2.3–5.5 V input. It integrates PMOS/NMOS power switches and a flyback diode, supports automatic PWM/PFM mode selection, and includes XSHUTDOWN (power good) output for system sequencing in portable battery-powered devices.
For engineers reviewing the DC6M603X6/15A datasheet, DC6M603X6/15A pinout, DC6M603X6/15A application, or DC6M603X6/15A equivalent, key selection criteria include its 1.5 V fixed output, 6 MHz switching frequency enabling ultra-small 470 nH inductors, ±2 % DC output accuracy, integrated soft-start and thermal/short-circuit protection, and WLCSP6 footprint optimized for space-constrained mobile designs.
Technical Context
The DC6M603X6/15A implements a synchronous buck topology with integrated high-side PMOS and low-side NMOS switches, operating at a fixed 6 MHz PWM clock (5.4–6.6 MHz typical). Its feedback loop regulates output voltage via the FB pin, with internal compensation eliminating external components.
It features automatic mode selection between PFM (for light-load efficiency) and PWM (for stable regulation), plus an XSHUTDOWN output synchronized to the output voltage rise/fall-enabling precise power-good signaling for camera modules and other SMIA-compliant peripherals without external monitoring circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±2 % over load/temperature; eliminates need for external resistor divider and ensures stable core logic supply. |
| Max Output Current | 650 mA continuous; sufficient for powering ARM Cortex-A/M cores, image sensors, or RF transceivers in smartphones and tablets. |
| Input Voltage Range | 2.3 V to 5.5 V; compatible with single-cell Li-ion (3.0–4.2 V), Li-polymer, or dual-cell alkaline batteries. |
| Switching Frequency | 6 MHz nominal (5.4–6.6 MHz); enables use of tiny 470 nH inductors and reduces EMI filtering requirements. |
| Efficiency | Up to 92 % at mid-load; extends battery runtime in portable applications by minimizing quiescent and conduction losses. |
| Quiescent Current | 0.2 µA in shutdown; critical for maintaining low system standby power in always-on sensor nodes or IoT edge devices. |
| Output Ripple | ≤15 mVp-p at 650 mA; meets noise-sensitive analog/RF supply requirements without additional LC filtering. |
Pinout & Package
DC6M603X6/15A uses a Wafer-Level Chip-Size Package (WLCSP6) measuring 1.36 × 0.96 × 0.47 mm with 0.4 mm bump pitch and solder bumps arranged in a 3×2 array. The package is lead-free and moisture-sensitivity level (MSL) 1 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE (A1) | XSHUTDOWN output enable control | Configures device for automatic PWM/PFM operation; also serves as open-drain power-good indicator output (VO-level signal) for system sequencing. |
| IN (A2) | Input voltage supply | Accepts 2.3–5.5 V unregulated input; requires ≥4.7 µF low-ESR ceramic capacitor placed adjacent to pin. |
| SW (B1) | Switch node | Connects to external 470 nH inductor; carries high-frequency pulsed current; layout must minimize parasitic inductance. |
| EN (B2) | Enable input | Active-HIGH or clock-driven (5–27 MHz, 40–60 % duty); supports SMIA-compliant camera module enable timing. |
| FB (C1) | Feedback input | Monitors regulated output after inductor; no external resistors needed-fixed 1.5 V output is internally trimmed. |
| GND (C2) | Ground reference | Primary return path for power and control circuits; requires low-inductance connection to PCB ground plane via multiple vias. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated synchronous rectification | Eliminates external flyback diode, reducing BOM count and improving efficiency by up to 5 % vs. asynchronous designs. |
| Soft-start function | 300 µs controlled ramp-up limits inrush current to ≤300 mA, preventing input rail collapse during power-on. |
| Thermal shutdown with hysteresis | Shuts down at 150 °C junction temperature and auto-restarts after 40 K cooldown-prevents permanent damage during sustained overload. |
| Short-circuit protection | Detects >1.3 A peak switch current and disables PWM within microseconds, protecting both IC and external inductor. |
| Power-good (XSHUTDOWN) output | Asserts VO-level signal within 100 µs of output stabilization (T2), enabling reliable reset sequencing for downstream processors or sensors. |
Applications
| Smartphone Core Power | Tablet PC Camera Module |
|---|---|
Use Scenario: Supplying 1.5 V to application processor I/O or memory interface in compact smartphone PCBs. IC Role / Device Role / Timing Role: Primary step-down regulator converting battery voltage to stable 1.5 V rail with fast transient response to CPU burst loads. Use Value: 6 MHz switching allows <1.0 mm² total solution size (inductor + caps), meeting strict board area constraints while maintaining <15 mV ripple under 650 mA load. |
Use Scenario: Powering CMOS image sensors and ISP blocks in tablet rear-facing camera subsystems. IC Role / Device Role / Timing Role: Synchronized power delivery with SMIA-compliant EN clock input and XSHUTDOWN output for precise sensor initialization timing. Use Value: XSHUTDOWN signal aligns with VO rise time (T5 = 30–200 µs), ensuring clean power-up sequence without external delay circuits or supervisors. |
| Digital Still Camera (DSC) LCD Bias | Portable Media Player (PMP) Audio Codec |
Use Scenario: Generating 1.5 V bias for LCD driver ICs in ultra-thin digital cameras. IC Role / Device Role / Timing Role: Compact, low-noise DC-DC source replacing linear regulators to reduce heat and extend battery life. Use Value: 92 % peak efficiency and 0.2 µA shutdown current directly increase usable battery capacity by >15 % versus LDO-based solutions. |
Use Scenario: Supplying clean 1.5 V to stereo audio DAC/ADC in battery-powered media players. IC Role / Device Role / Timing Role: Low-ripple, low-EMI power source with PFM mode active during playback pause to minimize idle current. Use Value: ≤10 mVp-p ripple at light load (0–100 mA) prevents audible noise in headphone outputs and preserves SNR performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | 3 MHz switching frequency; 300 mA max output; no XSHUTDOWN output; 2.05 V to 6.0 V input range. | Lacks power-good signaling and lower current capability; suitable only for non-sequenced, lower-power peripherals. | Select when board space permits larger inductor and system does not require coordinated power-up timing. |
| RT8059GJ6 | 1.5 MHz switching; 600 mA output; fixed 1.5 V; no XSHUTDOWN; requires external compensation network. | Higher output ripple (>30 mVp-p) and slower transient response; lacks integrated soft-start and thermal hysteresis. | Choose only if cost sensitivity outweighs performance and reliability requirements in non-critical consumer accessories. |
Compared with TPS62231DRYR and RT8059GJ6, DC6M603X6/15A delivers superior integration (XSHUTDOWN, soft-start, thermal hysteresis), higher efficiency at 6 MHz, and guaranteed ±2 % output accuracy-making it the optimal choice for space-constrained, sequenced power systems in premium mobile devices.
Availability
DC6M603X6/15A is available at Aetrix Electronics and suitable for smartphone core power, tablet camera modules, and digital still camera LCD bias applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DC6M603X6/15A 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and mobile markets.
The DC6M60xX6 family was designed specifically for ultra-compact, high-efficiency power conversion in battery-powered mobile imaging and handheld computing platforms-emphasizing minimal footprint, low quiescent current, and robust protection features.
FAQ
What is the output voltage tolerance of DC6M603X6/15A across temperature and load?
The DC6M603X6/15A guarantees ±2 % total DC output voltage accuracy over full operating conditions: −40 °C to +85 °C ambient, 15–650 mA load, and 2.3–5.5 V input. At light loads (<15 mA) in automatic PWM/PFM mode, tolerance widens to ±4 % of nominal 1.5 V, reflecting PFM regulation behavior. This specification is verified per Table 11 in the official NXP datasheet Rev. 2.
Does DC6M603X6/15A require external compensation components?
No, DC6M603X6/15A features fully internal compensation. Its feedback loop is optimized for stability with standard 2.2–4.7 µF ceramic output capacitors and 470 nH inductors-no external RC networks, feedforward capacitors, or compensation resistors are needed. This simplifies layout and reduces bill-of-materials cost compared to adjustable buck controllers.
Can DC6M603X6/15A be used with printed-circuit board (PCB) coils?
Yes, DC6M603X6/15A explicitly supports PCB-integrated planar inductors in addition to standard chip inductors and air-core coils. Its 6 MHz switching frequency and low gate charge drive capability allow efficient operation with low-DCR planar magnetics, enabling further miniaturization in ultra-thin mobile designs where height is constrained.
What is the maximum recommended output capacitance for DC6M603X6/15A?
The datasheet specifies a minimum external output capacitance of 2.2 µF and recommends 4.7 µF for optimal transient response and ripple suppression. While higher values (e.g., 10 µF) are permissible and improve load-step immunity, they may slightly increase start-up time and do not reduce ripple below the specified 15 mVp-p limit at full load. X7R/X5R dielectrics are strongly advised for temperature stability.
How does the XSHUTDOWN output behave during thermal shutdown?
During thermal shutdown, the DC6M603X6/15A disables switching and pulls the XSHUTDOWN output LOW (≤0.3 V) within 100 µs, signaling loss of regulated output. Once junction temperature falls below the hysteresis threshold (110 °C), the device restarts with soft-start, and XSHUTDOWN returns HIGH after VO settles-ensuring fail-safe system monitoring without external supervision circuitry.
DC6M603X6/15A,135 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 6-XFBGA, WLCSP
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 650mA
- Frequency - Switching:
- 6MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WLCSP (1.36x0.96)
DC6M603X6/15A,135 FAQ
1.How can I place an order for DC6M603X6/15A,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for DC6M603X6/15A,135 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 DC6M603X6/15A,135 reliable?
The price and inventory of DC6M603X6/15A,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DC6M603X6/15A,135 is usually 5 days.
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DC6M603X6/15A,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DC6M603X6/15A,135 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 DC6M603X6/15A,135?
For technical support, including DC6M603X6/15A,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DC6M603X6/15A,135 requirements.
6.How does Aetrix verify that DC6M603X6/15A,135 is sourced from the original manufacturer or authorized distributors?
All DC6M603X6/15A,135 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 DC6M603X6/15A,135 meets industry standards.
7.What is the process for return or replacement of DC6M603X6/15A,135?
All DC6M603X6/15A,135 units undergo pre-shipment inspection (PSI). If there is an issue with DC6M603X6/15A,135, 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 DC6M603X6/15A,135 part is unused and in its original packaging.
Return procedure for DC6M603X6/15A,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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