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onsemi NCP1530DM30R2
- Part No.:
- NCP1530DM30R2
- Manufacturer:
- onsemi
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
NCP1530DM30R2.pdf
- Description:
- IC REG BUCK 3V 600MA 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,310
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Product details
Overview
NCP1530DM30R2 from onsemi is a 600 mA non-synchronous step-down (buck) DC-DC converter with PWM/PFM dual-mode operation, fixed 600 kHz switching frequency (synchronizable up to 1.2 MHz), and factory-trimmed 3.0 V output voltage. It integrates a P-channel MOSFET, supports 2.8–5.0 V input, delivers ±1.5% output voltage accuracy over temperature, and targets battery-powered portable electronics requiring high light-load efficiency.
For engineers reviewing the NCP1530DM30R2 datasheet, pinout, applications, or equivalent options, key selection criteria include its 3.0 V output setting, 600 mA current capability, Micro8 package footprint, external synchronization capability via SYN pin, and automatic PWM-to-PFM transition at ~39 mA load (typ).
Technical Context
The NCP1530DM30R2 implements peak-current-mode PWM control with an internal 600 kHz oscillator, enabling stable regulation using small ceramic input/output capacitors and low-profile inductors. Its mode-selection logic responds directly to the SYN pin state: grounded or floating enables auto PWM/PFM switching, while connection to VIN forces constant-frequency PWM.
It features a 1.20 V ±1.5% internal reference (accessible at VREF pin), programmable soft-start via external capacitor on SS pin, cycle-by-cycle current limiting (1.5 A typ), and built-in protections including undervoltage lockout (2.0 V typ), thermal shutdown (145°C), and output overvoltage protection (6–12% above nominal). The LX pin drives the integrated P-FET switch with 0.3 Ω typical RDS(ON).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±1.5% (factory-trimmed; verified across 0–85°C ambient) |
| Max Output Current | 600 mA (with VIN = 5.0 V, VOUT = 3.0 V; limited by internal P-FET RDS(ON) and thermal design) |
| Switching Frequency | 600 kHz (internal default); synchronizable to 600–1200 kHz external clock via SYN pin |
| PWM/PFM Transition | PFM-to-PWM at ~100 mA (typ); PWM-to-PFM at ~39 mA (typ) for VOUT = 3.0 V |
| Supply Current | 45 µA (typ) in active no-load operation; 0.5 µA (typ) in shutdown mode |
| Input Voltage Range | 2.8 V to 5.0 V (supports single-cell Li-ion and multi-cell alkaline/NiMH systems) |
| Reference Voltage | 1.20 V ±1.5% (stable over temperature; accessible externally for monitoring or feedback tuning) |
Pinout & Package
Package: Micro8™ (Case 846A), 8-pin surface-mount, low-profile plastic package with exposed pad for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Unregulated input supply | Accepts 2.8–5.0 V; powers internal circuitry and P-FET source; requires local 22 µF ceramic bypass |
| SYN (Pin 2) | Oscillator sync & mode select | GND/floating → auto PWM/PFM; VIN → forced PWM; external 600–1200 kHz clock → synchronized PWM |
| SS (Pin 3) | Soft-start timing control | Sources 50 nA to external capacitor; sets startup ramp time (500 µs intrinsic; adjustable with CSS) |
| GND (Pin 4) | Power and signal ground | Common return for VIN, LX, EN, VOUT, VREF; star-ground connection recommended |
| EN (Pin 5) | Active-high enable | Logic high ≥1.5 V enables regulator; pulled internally to VIN; grounding disables device (0.5 µA shutdown IQ) |
| VOUT (Pin 6) | Feedback input | Connects to resistor divider from output; senses regulated voltage; internal error amplifier compares to 1.20 V reference |
| VREF (Pin 7) | Reference voltage output | Provides 1.20 V ±1.5%; decoupled with 1.0 µF capacitor; supports up to 5.0 mA load |
| LX (Pin 8) | Switch node | Drain of internal P-FET; connects to inductor; switches between VIN and GND; requires low-inductance layout |
Key Features
| Feature | Design Value |
|---|---|
| Auto PWM/PFM mode switching | Maintains >85% efficiency down to 1 mA load by dynamically selecting optimal control scheme |
| 100% duty cycle capability | Enables dropout operation near input rail-critical for Li-ion end-of-discharge support |
| External synchronization (600–1200 kHz) | Eliminates beat frequencies in multi-rail systems and enables EMI spread-spectrum alignment |
| Programmable soft-start | Prevents inrush current and output overshoot via user-selected CSS capacitor (e.g., 100 pF → ~5 ms ramp) |
| Built-in OVP and UVLO | Protects downstream circuitry: UVLO triggers at 2.0 V (typ); OVP halts switching if VOUT exceeds +6% to +12% |
Applications
| Portable Digital Assistants (PDAs) | Digital Still Cameras |
|---|---|
Use Scenario: Powering image sensor, DSP core, and LCD backlight from single Li-ion cell. IC Role / Device Role / Timing Role: Primary 3.0 V system rail regulator with dynamic load response and low-noise PFM mode during standby. Use Value: Extends battery life by sustaining >90% efficiency at 10 mA load while maintaining tight 3.0 V regulation under varying camera processing loads. |
Use Scenario: Supplying 3.0 V to CMOS image sensor and flash controller in compact form factor. IC Role / Device Role / Timing Role: Buck converter delivering stable 3.0 V with fast transient response to burst-mode sensor readout currents. Use Value: Enables use of miniature 5.6 µH inductor and 22 µF ceramic capacitors-reducing total solution size by >40% vs. legacy solutions. |
| Cellular Handsets | Portable Test Equipment |
Use Scenario: Generating 3.0 V bias for RF front-end ICs and baseband processors in GSM/EDGE handsets. IC Role / Device Role / Timing Role: Noise-sensitive power rail with synchronized 1.2 MHz operation to avoid interference with IF bands. Use Value: Reduces conducted EMI through external clock synchronization, easing EMC compliance without added filtering components. |
Use Scenario: Providing regulated 3.0 V for microcontroller, ADC, and display in handheld multimeters and signal analyzers. IC Role / Device Role / Timing Role: Main system supply with shutdown control for battery conservation during sleep mode. Use Value: Achieves 0.5 µA shutdown current, enabling >1-year shelf life on standard AA batteries with periodic wake-up operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRVR | 3.0 V fixed output, 600 mA, 2.05–6.0 V input, 3.8 MHz sync-capable, smaller 6-pin WSON package | Higher switching frequency enables smaller magnetics but increases switching loss at medium loads | Preferred when board space is constrained and higher-frequency noise can be filtered; not drop-in due to different pinout and package |
| RT8059GJ6 | 3.0 V fixed output, 600 mA, 2.5–5.5 V input, 1.5 MHz fixed frequency, no PFM mode, SOT-23-6 package | Lacks auto PWM/PFM and external sync; simpler control but lower light-load efficiency (~75% at 1 mA) | Selected for cost-sensitive designs where constant-frequency operation suffices and light-load efficiency is secondary |
Compared with TPS62231DRVR and RT8059GJ6, the NCP1530DM30R2 uniquely balances 600 kHz base frequency, true PWM/PFM auto-switching, and Micro8 thermal performance-making it optimal for battery-powered systems needing both efficiency across load range and robust thermal behavior in compact enclosures.
Availability
NCP1530DM30R2 is available at Aetrix Electronics and suitable for portable medical monitors, handheld industrial scanners, and battery-powered audio systems requiring stable component supply, long-lifecycle availability, and consistent parametric performance across production batches.
Supply support for NCP1530DM30R2 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The NCP1530DM30R2 belongs to the NCP1530 family of high-efficiency, low-quiescent-current buck converters designed specifically for space-constrained, battery-operated portable electronics with stringent light-load efficiency requirements.
FAQ
What is the factory-set output voltage of the NCP1530DM30R2?
The NCP1530DM30R2 is factory-trimmed to deliver a precise 3.0 V output voltage, with guaranteed tolerance of ±1.5% over operating temperature (0°C to +85°C) and line/load conditions. This value is confirmed in the Electrical Characteristics table (VOUT = 3.0 V, min 2.910 V, max 3.090 V) and applies specifically to the DM30R2 variant-not other members of the NCP1530 family like DM25R2 or DM33R2.
How does the SYN pin affect operation mode in the NCP1530DM30R2?
The SYN pin on the NCP1530DM30R2 determines control mode: when tied to GND or left floating, it enables automatic PWM/PFM switching; when pulled to VIN, it forces constant-frequency PWM operation; and when driven by an external 600–1200 kHz clock, it synchronizes switching to that signal. This behavior is explicitly defined in the Pin Function Descriptions section and validated in Figures 11–14 of the datasheet.
What is the maximum continuous output current supported by the NCP1530DM30R2?
The NCP1530DM30R2 supports up to 600 mA of continuous output current under specified conditions: VIN = 5.0 V, VOUT = 3.0 V, and proper PCB thermal design using the Micro8 package's exposed pad. This rating is confirmed in the Electrical Characteristics table (IOUT(max) = 600 mA) and reflects the limit imposed by the internal P-FET's RDS(ON) and thermal shutdown threshold (145°C).
Does the NCP1530DM30R2 require external compensation components?
No, the NCP1530DM30R2 uses internal compensation and is optimized for stable operation with low-ESR ceramic output capacitors (e.g., 22 µF X5R/X7R). The datasheet confirms this in the "Output Capacitor Selection" section and Figure 2, which shows the integrated OTA and internal ramp generation-eliminating need for external RC networks typically required in voltage-mode controllers.
What protection features are integrated into the NCP1530DM30R2?
The NCP1530DM30R2 integrates five key protections: (1) undervoltage lockout (UVLO) triggering at ~2.0 V, (2) output overvoltage protection (OVP) activating at +6% to +12% above nominal, (3) cycle-by-cycle current limiting (1.5 A typ), (4) thermal shutdown at 145°C with 15°C hysteresis, and (5) power-saving shutdown mode reducing quiescent current to 0.5 µA. All are documented in the Features list and Detailed Operating Description sections.
NCP1530DM30R2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- 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):
- 4V
- Voltage - Input (Max):
- 5V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 600mA
- Frequency - Switching:
- 600kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- 0°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
NCP1530DM30R2 FAQ
1.How can I place an order for NCP1530DM30R2 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP1530DM30R2 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 NCP1530DM30R2 reliable?
The price and inventory of NCP1530DM30R2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP1530DM30R2 is usually 5 days.
3.What payment methods are accepted for NCP1530DM30R2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP1530DM30R2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP1530DM30R2?
NCP1530DM30R2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP1530DM30R2 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 NCP1530DM30R2?
For technical support, including NCP1530DM30R2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP1530DM30R2 requirements.
6.How does Aetrix verify that NCP1530DM30R2 is sourced from the original manufacturer or authorized distributors?
All NCP1530DM30R2 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 NCP1530DM30R2 meets industry standards.
7.What is the process for return or replacement of NCP1530DM30R2?
All NCP1530DM30R2 units undergo pre-shipment inspection (PSI). If there is an issue with NCP1530DM30R2, 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 NCP1530DM30R2 part is unused and in its original packaging.
Return procedure for NCP1530DM30R2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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