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NXP Semiconductors DC6M603X6/12A,135
- Part No.:
- DC6M603X6/12A,135
- Manufacturer:
- NXP Semiconductors
- Package:
- 6-XFBGA, WLCSP
- Datasheet:
-
DC6M603X6/12A,135.pdf
- Description:
- IC REG BUCK 1.2V 650MA 6WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,704
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Product details
Overview
DC6M603X6/12A from NXP Semiconductors is a 6 MHz, 650 mA step-down DC-DC converter in WLCSP6 package, delivering a fixed 1.2 V output from 2.3–5.5 V input. It integrates PFM/PWM auto-mode selection and a power-good (XSHUTDOWN) output, optimized for space-constrained battery-powered mobile devices requiring high efficiency (up to 95 %) and low output ripple.
For engineers reviewing the DC6M603X6/12A datasheet, DC6M603X6/12A pinout, DC6M603X6/12A application, or DC6M603X6/12A equivalent, key selection criteria include its 1.2 V fixed output, 6 MHz switching frequency enabling ultra-small 470 nH inductors, integrated soft-start and thermal/short-circuit protection, and XSHUTDOWN functionality for system power sequencing in smartphones and portable imaging modules.
Technical Context
The DC6M603X6/12A implements a synchronous buck topology with integrated PMOS high-side and NMOS low-side 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 ±2 % total DC accuracy across load and temperature.
It features automatic PWM/PFM mode switching based on output current threshold detection, plus an XSHUTDOWN output synchronized to VO rise/fall with ≤100 µs delay. The MODE pin serves as XSHUTDOWN output (not input), distinguishing it from DC6M601X6/DC6M602X6 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V ±2 % over load/temperature - ensures stable core voltage for low-power processors and sensors. |
| Max Output Current | 650 mA - supports moderate-power subsystems like camera ISPs or RF front-ends without external boost. |
| Switching Frequency | 6 MHz (5.4–6.6 MHz) - enables use of tiny 470 nH inductors and reduces EMI filtering burden. |
| Input Voltage Range | 2.3 V to 5.5 V - compatible with single-cell Li-ion (2.7–4.2 V), Li-polymer, and regulated 3.3 V/5 V rails. |
| Efficiency | Up to 95 % - extends battery runtime in portable devices by minimizing quiescent loss at light loads. |
| Quiescent Current | 0.2 µA in shutdown - eliminates standby drain during system sleep modes. |
| Output Ripple | ≤10 mVp-p (0–100 mA), ≤15 mVp-p (100–650 mA) - meets noise-sensitive analog/RF supply requirements. |
Pinout & Package
DC6M603X6/12A uses a Wafer-Level Chip-Size Package (WLCSP6) measuring 1.36 × 0.96 × 0.47 mm with 0.4 mm bump pitch and 3×2 solder ball array.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE (A1) | XSHUTDOWN output | Power-good signal mirroring VO level; rises within ≤100 µs after VO settles - used for sequenced enable of downstream ICs. |
| IN (A2) | Input supply | Accepts 2.3–5.5 V; requires ≥4.7 µF low-ESR ceramic capacitor placed adjacent to minimize input transients. |
| SW (B1) | Switch node | Connects to external 470 nH inductor; carries high di/dt switching current - requires tight layout to reduce EMI. |
| EN (B2) | Enable control | Active-HIGH logic or 5–27 MHz clock input; enables soft-start sequence and disables device when LOW. |
| FB (C1) | Feedback input | Senses output voltage post-inductor; sets regulation point - no external resistor divider needed for fixed-output version. |
| GND (C2) | Ground reference | Primary return path for power and control circuits; must be connected to low-impedance PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated XSHUTDOWN output | Provides synchronized power-good signaling for system-level power sequencing without external monitoring circuitry. |
| Automatic PWM/PFM mode | Reduces light-load quiescent current to 180 µA while maintaining regulation - critical for battery longevity in idle states. |
| Soft-start function | Limits inrush current via controlled duty-cycle ramp over 300 µs - prevents input rail collapse during startup. |
| Thermal and short-circuit protection | Shuts down at 150 °C junction temperature with 40 K hysteresis; restarts automatically after cooldown - ensures robust operation under fault conditions. |
| Integrated synchronous rectification | Eliminates need for external flyback diode - reduces BOM count and improves efficiency by replacing conduction losses with low-RDS(on) NMOS (0.3 Ω typical). |
Applications
| Smartphone Application | Tablet PC Application |
|---|---|
Use Scenario: Powering image signal processor (ISP) and CMOS sensor in rear-facing camera module. IC Role / Device Role / Timing Role: Primary 1.2 V core supply regulator with XSHUTDOWN output enabling precise timing-controlled activation of sensor and ISP. Use Value: Enables fast, glitch-free camera startup with coordinated power-up and meets strict 10 mVp-p ripple requirement for low-noise analog pixel readout. | Use Scenario: Supplying 1.2 V to application processor I/O domain during active use and low-power suspend states. IC Role / Device Role / Timing Role: High-efficiency buck converter with automatic PFM mode reducing idle current to 180 µA - extends tablet standby time. Use Value: Delivers 650 mA peak current during burst processing while maintaining <2 % output accuracy across temperature for reliable interface signaling. |
| Digital Still Camera (DSC) | Portable Media Player (PMP) |
Use Scenario: Providing regulated 1.2 V to autofocus motor driver and flash LED controller. IC Role / Device Role / Timing Role: Compact DC-DC solution with 6 MHz switching allowing minimal PCB area for inductor and capacitors near optical module. Use Value: Achieves >90 % efficiency at 300 mA load, minimizing heat generation near sensitive optics and extending battery life per shot. | Use Scenario: Powering audio codec and NAND flash controller in high-resolution music player. IC Role / Device Role / Timing Role: Fixed-output buck converter with soft-start preventing audio pop during playback initiation. Use Value: Maintains <15 mVp-p ripple at full 650 mA load - avoids audible noise in headphone output and ensures stable NAND programming voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DC-DC buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | Fixed 1.2 V output, 650 mA, 6 MHz, but lacks XSHUTDOWN output and uses DSBGA6 package (0.5 mm pitch). | No built-in power-good signal - requires external supervisor for sequenced enable in multi-rail systems. | Select when XSHUTDOWN is unnecessary and board layout allows larger 0.5 mm pitch footprint. |
| RT8059ZSP | 1.2 V, 600 mA, 6 MHz, includes power-good output but specifies ±3 % output accuracy vs. ±2 % for DC6M603X6/12A. | Lower accuracy may affect margin-critical digital core supplies; same WLCSP6 footprint but different pinout (PGOOD on different ball). | Choose if cost sensitivity outweighs 1 % accuracy loss and pinout redesign is acceptable. |
Compared with TPS62231DRYR and RT8059ZSP, DC6M603X6/12A uniquely combines ±2 % output accuracy, integrated XSHUTDOWN with ≤100 µs timing, and 0.4 mm pitch WLCSP6 - making it optimal for space-constrained, multi-rail mobile designs requiring precise power sequencing and minimal board area.
Availability
DC6M603X6/12A is available at Aetrix Electronics and suitable for smartphone camera modules, tablet PC processor I/O domains, and portable media player audio subsystems requiring stable component supply with guaranteed long-term availability.
Supply support for DC6M603X6/12A 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 specializing in secure connectivity solutions for automotive, industrial, and mobile applications.
The DC6M60xX6 family was designed specifically for ultra-compact, high-efficiency power conversion in battery-powered portable electronics - emphasizing minimal external components, low quiescent current, and robust protection for mission-critical subsystems.
FAQ
What is the primary function of the MODE pin on the DC6M603X6/12A?
The MODE pin on the DC6M603X6/12A functions exclusively as an XSHUTDOWN (power-good) output - not an input. It mirrors the output voltage VO level and asserts HIGH within ≤100 µs after VO settles during startup. This differs from other DC6M60xX6 variants where MODE is an input for mode or voltage selection. The DC6M603X6/12A does not support external configuration via the MODE pin.
Does the DC6M603X6/12A require an external feedback resistor network?
No, the DC6M603X6/12A does not require external feedback resistors because it is a fixed-output device delivering 1.2 V. The FB pin connects directly to the output node post-inductor for regulation sensing. External resistive dividers are only needed for adjustable-output versions like DC6M602X6, not for DC6M603X6/12A.
What inductor value is recommended for the DC6M603X6/12A, and why?
The DC6M603X6/12A is optimized for a 470 nH external inductor, leveraging its 6 MHz switching frequency to achieve high efficiency with minimal size and cost. Recommended parts include Murata LQM21PNR47MC0 (2.0 × 1.2 × 0.55 mm) and FDK MIPS2012DOR5. Using this value ensures stable operation, low ripple, and compliance with the device's internal compensation - deviating significantly may degrade transient response or efficiency.
How does the DC6M603X6/12A handle overcurrent or thermal faults?
The DC6M603X6/12A incorporates integrated short-circuit and overcurrent protection that monitors the PMOS high-side switch current. When overcurrent is detected, the PMOS shuts off immediately. Thermal protection activates at 150 °C junction temperature, disabling the device until temperature drops by 40 K, then restarting with soft-start. These protections are fully autonomous and require no external components.
Can the DC6M603X6/12A be enabled using a clock signal instead of a DC logic level?
Yes, the EN pin of the DC6M603X6/12A accepts either a constant HIGH logic level or an AC clock signal between 5 MHz and 27 MHz with 40–60 % duty cycle. This feature enables synchronization with system clocks (e.g., SMIA-compliant camera modules) and eliminates the need for separate enable logic - the DC6M603X6/12A initiates soft-start upon first valid clock edge.
DC6M603X6/12A,135 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 6-XFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- 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):
- 1.2V
- 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)
DC6M603X6/12A,135 FAQ
1.How can I place an order for DC6M603X6/12A,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for DC6M603X6/12A,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 DC6M603X6/12A,135 reliable?
The price and inventory of DC6M603X6/12A,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DC6M603X6/12A,135 is usually 5 days.
3.What payment methods are accepted for DC6M603X6/12A,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DC6M603X6/12A,135 transactions.
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4.How is shipping managed for DC6M603X6/12A,135?
DC6M603X6/12A,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DC6M603X6/12A,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 DC6M603X6/12A,135?
For technical support, including DC6M603X6/12A,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DC6M603X6/12A,135 requirements.
6.How does Aetrix verify that DC6M603X6/12A,135 is sourced from the original manufacturer or authorized distributors?
All DC6M603X6/12A,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 DC6M603X6/12A,135 meets industry standards.
7.What is the process for return or replacement of DC6M603X6/12A,135?
All DC6M603X6/12A,135 units undergo pre-shipment inspection (PSI). If there is an issue with DC6M603X6/12A,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 DC6M603X6/12A,135 part is unused and in its original packaging.
Return procedure for DC6M603X6/12A,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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