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NXP Semiconductors DC6M601X6/12S,135
- Part No.:
- DC6M601X6/12S,135
- Manufacturer:
- NXP Semiconductors
- Package:
- 6-XFBGA, WLCSP
- Datasheet:
-
DC6M601X6/12S,135.pdf
- Description:
- IC REG BUCK 1.2V 650MA 6WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,799
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Product details
Overview
DC6M601X6/12S from NXP Semiconductors is a 6 MHz, 650 mA synchronous step-down DC-DC converter in WLCSP6 package, delivering a fixed 1.2 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 or forced PWM, and achieves up to 95 % efficiency for battery-powered portable electronics.
For engineers reviewing the DC6M601X6/12S datasheet, DC6M601X6/12S pinout, DC6M601X6/12S application, or DC6M601X6/12S equivalent, this page delivers verified technical context, validated pin functions, real-world application mappings, and confirmed alternative options - all grounded in NXP's official product data sheet Rev. 2 (29 January 2013).
Technical Context
The DC6M601X6/12S implements a synchronous buck topology with integrated P-channel and N-channel MOSFETs, operating at a fixed 6 MHz switching frequency to minimize external component size. Its control loop uses voltage-mode PWM with current-sensing for automatic PFM entry below ~15 mA load, reducing quiescent current to 180 µA in light-load conditions.
It features a soft-start circuit limiting inrush current over 300 µs, thermal shutdown at 150 °C with 40 K hysteresis, and short-circuit protection via high-side current sensing. The MODE pin selects between automatic PWM/PFM (LOW) or forced PWM (HIGH), while EN accepts either logic HIGH or clock signals (5–27 MHz, 40–60 % duty cycle) for SMIA-compliant enable timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 1.2 V ±2 % over load/temperature; enables stable core supply for low-voltage processors and sensors. |
| Max output current | 650 mA continuous; sufficient for powering application processors, camera modules, or RF subsystems in compact devices. |
| 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/battery-backed systems. |
| Switching frequency | 6.0 MHz ±10 %; allows use of ultra-small 470 nH inductors and reduces EMI filtering requirements. |
| Efficiency | Up to 95 % at mid-load; extends battery runtime in smartphones and portable media players. |
| Quiescent current | 0.2 µA in shutdown; minimizes system standby drain when powered off. |
| Output ripple | ≤10 mVp-p at 0–100 mA load; ensures clean supply for noise-sensitive analog/RF circuits. |
Pinout & Package
DC6M601X6/12S 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. The package is lead-free and moisture-sensitive level (MSL) 1, requiring reflow per J-STD-020C profile (peak 230–260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE (A1) | Mode select input | LOW = automatic PWM/PFM; HIGH = forced PWM; no internal pull-up/down - must be externally biased. |
| IN (A2) | Power input | Accepts 2.3–5.5 V; 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 switching current - layout critical for EMI control. |
| EN (B2) | Enable input | Active HIGH or clock signal (5–27 MHz); enables soft-start on assertion; pulls output low when LOW. |
| FB (C1) | Feedback input | Not used for fixed-output variants like DC6M601X6/12S; internally connected to output divider - leave unconnected. |
| GND (C2) | Ground reference | Primary return path for power and control circuits; requires low-inductance connection to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated synchronous rectification | Eliminates need for external flyback diode, reducing BOM count and improving efficiency by ~5–8 % vs. asynchronous designs. |
| Soft-start function | 300 µs controlled ramp limits inrush current to ≤300 mA, preventing input rail collapse during power-up. |
| Thermal and short-circuit protection | Auto-restart after thermal shutdown (150 °C); immediate current-limit shutdown prevents damage under overload or output short. |
| Ultra-small footprint | WLCSP6 package (1.36 × 0.96 mm) enables placement in tight spaces such as camera module PCBs or wearable sensor nodes. |
| Low-noise PWM/PFM operation | Output ripple remains ≤10 mVp-p across full load range, avoiding interference with sensitive RF or audio subsystems. |
Applications
| Smartphone Power Management | Tablet PC Core Supply |
|---|---|
|
Use Scenario: Regulating main SoC core voltage in space-constrained smartphone front-end modules. IC Role / Device Role / Timing Role: Primary 1.2 V buck regulator supplying processor cores with fast transient response and minimal board area. Use Value: 6 MHz switching enables 470 nH inductor use, cutting solution size by >40 % versus 1 MHz converters; 95 % efficiency extends talk time. |
Use Scenario: Providing stable 1.2 V rail to application processor in thin-profile tablet PCs with limited thermal headroom. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter with thermal shutdown protecting against sustained high-load operation. Use Value: Soft-start prevents input dip during boot; ±2 % output accuracy ensures reliable CPU operation across temperature and aging. |
| Digital Still Camera (DSC) Sensor Bias | Portable Media Player (PMP) Audio Codec Supply |
|
Use Scenario: Delivering clean 1.2 V bias to CMOS image sensor and ISP in compact DSC modules. IC Role / Device Role / Timing Role: Low-ripple, low-noise power source synchronized to sensor frame timing via EN clock input. Use Value: ≤10 mVp-p ripple avoids image noise; forced PWM mode eliminates PFM frequency modulation artifacts in video capture. |
Use Scenario: Powering stereo audio codec and DAC in battery-operated PMPs requiring long playback duration. IC Role / Device Role / Timing Role: Efficient, low-quiescent-current supply enabling >20-hour playback on single-cell Li-ion. Use Value: 0.2 µA shutdown current preserves battery during pause; automatic PFM extends runtime during low-volume playback. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | Fixed 1.2 V, 600 mA, 3–6 MHz adjustable frequency, 0.7 µA shutdown current; WSON-6 package (2.0 × 2.0 mm). | Larger footprint and lower max current; lacks clock-enabled EN but offers tighter 1 % output accuracy. | Select when higher output precision or adjustable frequency is required; avoid if board area is constrained below 1.4 mm². |
| RT8059ZSP | Fixed 1.2 V, 600 mA, 3 MHz, 1.5 µA shutdown; WDFN-6 package (2.0 × 2.0 mm); no clock-enable on EN. | Lower switching frequency increases inductor size; no PFM/PWM auto-switching - only forced PWM or PFM modes. | Choose for cost-sensitive designs where 6 MHz EMI suppression is not critical and board space permits larger inductor. |
Compared with DC6M601X6/12S, TPS62231DRYR offers superior accuracy but occupies 2× more PCB area, while RT8059ZSP trades switching speed and mode flexibility for lower BOM cost - making DC6M601X6/12S optimal for ultra-compact, high-efficiency battery systems demanding clock-synchronized enable.
Availability
DC6M601X6/12S is available at Aetrix Electronics and suitable for smartphone power management, tablet PC core supply, and digital still camera sensor bias requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for DC6M601X6/12S 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 consumer electronics.
The DC6M60xX6 family was designed specifically for ultra-compact, high-efficiency power conversion in battery-powered mobile devices - prioritizing minimal footprint, low quiescent current, and robust protection for space- and energy-constrained applications.
FAQ
What is the recommended external inductor value for DC6M601X6/12S?
The DC6M601X6/12S is optimized for a 470 nH external inductor, as specified in NXP's datasheet Section 7 and Figure 17. Recommended part numbers include Murata LQM21PNR47MC0 (2.0 × 1.2 × 0.55 mm) and FDK MIPS2012DOR5. Inductor DCR should be ≤120 mΩ to maintain efficiency above 90 % at full load.
Does DC6M601X6/12S require an external feedback resistor network?
No. DC6M601X6/12S is a fixed-output variant with internal feedback divider set for 1.2 V. The FB pin (C1) is not connected externally and must be left floating - unlike adjustable versions such as DC6M602X6, which use FB for output voltage selection.
Can DC6M601X6/12S be enabled using a clock signal instead of a DC logic level?
Yes. Per Section 5.5 of the datasheet, the EN pin accepts either a constant HIGH logic level or a clock signal between 5 MHz and 27 MHz with 40–60 % duty cycle - enabling synchronization with SMIA-compliant camera modules and eliminating need for additional enable logic.
What is the thermal shutdown behavior of DC6M601X6/12S?
DC6M601X6/12S shuts down at 150 °C junction temperature and restarts automatically after cooling by 40 K (to ~110 °C), as defined in Table 9 and Section 5.3. During shutdown, the SW pin is disabled and output collapses; soft-start resumes on recovery to prevent inrush stress.
Is DC6M601X6/12S RoHS-compliant and lead-free?
Yes. DC6M601X6/12S uses a lead-free wafer-level chip-scale package (WLCSP6) and complies with RoHS Directive 2011/65/EU. Its reflow profile follows J-STD-020C for MSL1 components, with peak temperature between 230 °C and 260 °C.
DC6M601X6/12S,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)
DC6M601X6/12S,135 FAQ
1.How can I place an order for DC6M601X6/12S,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for DC6M601X6/12S,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 DC6M601X6/12S,135 reliable?
The price and inventory of DC6M601X6/12S,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DC6M601X6/12S,135 is usually 5 days.
3.What payment methods are accepted for DC6M601X6/12S,135?
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4.How is shipping managed for DC6M601X6/12S,135?
DC6M601X6/12S,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DC6M601X6/12S,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 DC6M601X6/12S,135?
For technical support, including DC6M601X6/12S,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DC6M601X6/12S,135 requirements.
6.How does Aetrix verify that DC6M601X6/12S,135 is sourced from the original manufacturer or authorized distributors?
All DC6M601X6/12S,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 DC6M601X6/12S,135 meets industry standards.
7.What is the process for return or replacement of DC6M601X6/12S,135?
All DC6M601X6/12S,135 units undergo pre-shipment inspection (PSI). If there is an issue with DC6M601X6/12S,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 DC6M601X6/12S,135 part is unused and in its original packaging.
Return procedure for DC6M601X6/12S,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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