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onsemi NCP1530DM30R2G
- Part No.:
- NCP1530DM30R2G
- Manufacturer:
- onsemi
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
NCP1530DM30R2G.pdf
- Description:
- IC REG BUCK 3V 600MA 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,976
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Product details
Overview
NCP1530DM30R2G from onsemi is a 600 mA non-synchronous step-down (buck) DC-DC converter with PWM/PFM auto-mode operation, 3.0 V factory-programmed output voltage, 600 kHz internal oscillator, and external synchronization capability up to 1.2 MHz. 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 NCP1530DM30R2G datasheet, pinout, applications, or equivalent options, key selection criteria include its 3.0 V fixed output, 600 mA current capability, Micro8 package footprint, soft-start programmability via SS pin, and dual-mode (PWM/PFM) efficiency optimization across load range.
Technical Context
The NCP1530DM30R2G employs peak-current-mode PWM control with internal compensation, enabling stable regulation using ceramic output capacitors. Its mode selection is determined by the SYN pin: grounded or floating enables automatic PWM/PFM switching, while connection to VIN forces constant-frequency PWM.
It features an internally trimmed 1.20 V reference (±1.5% over 0°C to +85°C), 50 nA soft-start current source at SS pin, and cycle-by-cycle current limiting set at 1.5 A typical. Thermal shutdown activates at 145°C with 15°C hysteresis, and undervoltage lockout disables operation below ~2.0 V VIN.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±1.5% (factory-trimmed; ensures precise rail for 3.0 V logic or analog subsystems) |
| Max Output Current | 600 mA (supports moderate-power peripherals like camera modules or audio codecs) |
| Input Voltage Range | 2.8 V to 5.0 V (compatible with single-cell Li-ion or two-cell alkaline/NiMH batteries) |
| Switching Frequency | 600 kHz (internal) or 600–1200 kHz (externally synchronized; enables compact 5.6 µH inductor) |
| Efficiency | Up to 92% at 4.3 VIN/3.3 VOUT/300 mA (high light-load efficiency via PFM mode reduces quiescent power) |
| Quiescent Current | 45 µA typical (VIN = 4.0 V, no load; extends battery life in standby) |
| Shutdown Current | 0.5 µA typical (EN = low; essential for ultra-low-power system sleep states) |
| Reference Voltage | 1.20 V ±1.5% (stable internal reference accessible at VREF pin for external monitoring or feedback tuning) |
Pinout & Package
Package: Micro8™ (8-pin, surface-mount, low-profile plastic package per Case 846A; 3.0 mm × 3.0 mm footprint, 0.95 mm height).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Unregulated input supply | Accepts 2.8–5.0 V; requires local 22 µF ceramic bypass capacitor adjacent to pin |
| SYN (Pin 2) | Oscillator sync & mode control | GND/floating → PWM/PFM auto-mode; VIN → forced PWM; external clock (600–1200 kHz) → synchronized PWM |
| SS (Pin 3) | Soft-start timing control | 50 nA current source charges external capacitor; sets ramp time (e.g., 100 pF ≈ 5 ms); floating → 500 µs built-in soft-start |
| GND (Pin 4) | Power ground reference | Star-ground connection point for input/output return paths to minimize noise coupling |
| EN (Pin 5) | Active-high enable | Logic high ≥1.5 V enables regulator; pulled internally to VIN; GND forces 0.5 µA shutdown |
| VOUT (Pin 6) | Feedback input | Senses output voltage; internal resistor divider sets 3.0 V; no external resistors required |
| VREF (Pin 7) | Reference voltage output | Provides 1.20 V ±1.5%; decoupled with 1.0 µF capacitor; supplies up to 5 mA for external circuitry |
| LX (Pin 8) | Switch node | Connects to inductor; drives internal P-FET; requires low-inductance layout to minimize EMI and ringing |
Key Features
| Feature | Design Value |
|---|---|
| Auto PWM/PFM mode switching | Reduces quiescent current at light loads (e.g., <40 mA) without external control, maintaining >85% efficiency down to 1 mA |
| 100% duty cycle capability | Enables dropout operation-output can track input down to VOUT + RDS(ON)·ILOAD, maximizing battery runtime |
| Programmable soft-start | External capacitor on SS pin prevents inrush current and output overshoot during power-up (adjustable from 500 µs to >10 ms) |
| Integrated protection suite | Includes UVLO (~2.0 V), thermal shutdown (145°C), output overvoltage protection (≥6% above nominal), and cycle-by-cycle current limit (1.5 A) |
| MICRO8™ package compatibility | Enables high-density PCB layouts; compatible with standard reflow profiles and automated assembly |
Applications
| PDAs | Digital Still Cameras |
|---|---|
Use Scenario: Power management in handheld PDAs with LCD backlight, memory, and touch controller. IC Role / Device Role / Timing Role: Primary 3.0 V system rail regulator delivering up to 600 mA with dynamic load response. Use Value: PWM/PFM auto-mode maintains >90% efficiency at both active (300 mA) and standby (10 mA) currents, extending battery life. | Use Scenario: Core power supply for image sensor, ISP, and flash LED driver in compact digital cameras. IC Role / Device Role / Timing Role: Fixed 3.0 V buck converter with fast transient response for burst-mode sensor operation. Use Value: 600 kHz switching allows small 5.6 µH inductor and 22 µF ceramic capacitors, minimizing board area and EMI. |
| Cellular Phones | Portable Test Equipment |
Use Scenario: Supplying baseband processor I/O or RF front-end bias rails in feature phones. IC Role / Device Role / Timing Role: Low-noise, externally synchronizable 3.0 V regulator co-located near noise-sensitive RF sections. Use Value: Synchronization to system clock (e.g., 1.0 MHz) eliminates beat frequencies and simplifies EMI filtering. | Use Scenario: Powering microcontroller, display, and precision ADC in handheld multimeters or signal generators. IC Role / Device Role / Timing Role: Main 3.0 V supply with tight output regulation (±1.5%) and low drift over temperature. Use Value: 1.20 V internal reference (±0.03 mV/°C) enables accurate on-board calibration and stable analog performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | 3.0 V fixed output, 600 mA, 2.05–6.0 V input, 3.8 MHz switching, smaller 6-pin WSON package | Higher frequency enables smaller passives but increases EMI sensitivity; lacks external sync and PFM mode | Prefer for space-constrained designs where ultra-small inductors are critical and system clock sync is unnecessary |
| RT8059NGSP | 3.0 V fixed output, 600 mA, 2.5–5.5 V input, 1.5 MHz switching, includes integrated high-side FET and bootstrap diode | No external sync pin; no PFM mode; higher quiescent current (25 µA vs. 45 µA typical in PFM) | Prefer when simplified BOM (no external LX flyback diode) and higher switching frequency outweigh need for light-load efficiency |
Compared with TPS62231DRYR and RT8059NGSP, the NCP1530DM30R2G uniquely combines external clock synchronization, true PWM/PFM auto-mode for sub-100 µA quiescent operation, and Micro8 packaging-making it optimal for battery-powered systems requiring both efficiency flexibility and EMI control.
Availability
NCP1530DM30R2G is available at Aetrix Electronics and suitable for portable audio systems, digital still cameras, and cellular phone power management requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP1530DM30R2G 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 focused on energy-efficient electronics, with leadership in power management, analog, and sensing technologies.
The NCP1530DM30R2G belongs to onsemi's NCP1530 series of compact, high-efficiency buck converters designed specifically for battery-powered portable devices where size, efficiency across load range, and robust protection are critical.
FAQ
What is the factory-programmed output voltage of the NCP1530DM30R2G?
The NCP1530DM30R2G has a factory-programmed output voltage of exactly 3.0 V, with ±1.5% tolerance over temperature (0°C to +85°C) and line/load conditions. This fixed output eliminates the need for external feedback resistors and ensures consistent rail generation for 3.0 V logic, sensors, or analog circuits without design iteration.
How does the NCP1530DM30R2G achieve high efficiency at light loads?
The NCP1530DM30R2G achieves high light-load efficiency by automatically switching from constant-frequency PWM to variable-frequency PFM mode when output current drops below ~39 mA (typical at VIN = 4.5 V). In PFM mode, non-essential circuitry is disabled, reducing quiescent current to 45 µA typical and maintaining >85% efficiency even at 1 mA load.
Can the NCP1530DM30R2G be synchronized to an external clock, and what are the requirements?
Yes, the NCP1530DM30R2G can be synchronized to an external clock applied to the SYN pin (Pin 2). The clock must be 600–1200 kHz, with pulse width ≥300 ns and edge-triggered detection. When synchronized, the device operates exclusively in PWM mode, overriding PFM behavior and enabling deterministic EMI reduction in noise-sensitive systems.
What protection features are integrated into the NCP1530DM30R2G?
The NCP1530DM30R2G integrates undervoltage lockout (~2.0 V), thermal shutdown (145°C activation, 15°C hysteresis), output overvoltage protection (≥6% above nominal), and cycle-by-cycle current limiting (1.5 A typical). These features protect both the IC and downstream circuitry during fault conditions such as input brownout, overload, or short-circuit events.
Is an external flywheel diode required for the NCP1530DM30R2G, and what type is recommended?
Yes, an external flywheel (freewheeling) diode is required because the NCP1530DM30R2G uses a non-synchronous buck topology with only an internal high-side P-FET. A Schottky diode such as MBRM120ET3 is recommended-its low forward voltage (<0.25 V at 600 mA) and fast recovery minimize conduction loss and improve overall efficiency, especially at higher input voltages.
NCP1530DM30R2G 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
NCP1530DM30R2G FAQ
1.How can I place an order for NCP1530DM30R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP1530DM30R2G 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 NCP1530DM30R2G reliable?
The price and inventory of NCP1530DM30R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP1530DM30R2G is usually 5 days.
3.What payment methods are accepted for NCP1530DM30R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP1530DM30R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP1530DM30R2G?
NCP1530DM30R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP1530DM30R2G 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 NCP1530DM30R2G?
For technical support, including NCP1530DM30R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP1530DM30R2G requirements.
6.How does Aetrix verify that NCP1530DM30R2G is sourced from the original manufacturer or authorized distributors?
All NCP1530DM30R2G 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 NCP1530DM30R2G meets industry standards.
7.What is the process for return or replacement of NCP1530DM30R2G?
All NCP1530DM30R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP1530DM30R2G, 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 NCP1530DM30R2G part is unused and in its original packaging.
Return procedure for NCP1530DM30R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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