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onsemi NCP590MN5ATAG
- Part No.:
- NCP590MN5ATAG
- Manufacturer:
- onsemi
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
NCP590MN5ATAG.pdf
- Description:
- IC REG LINEAR 1.2V/1.5V 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:14,925
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Product details
Overview
NCP590MN5ATAG from onsemi is a dual-output, ultra-low-dropout CMOS LDO regulator in a 2×2 mm DFN8 package, delivering 300 mA per channel with output voltages of 1.2 V and 1.5 V. It achieves ±0.9% voltage accuracy at 100 mA/25°C, features independent enable pins (EN1/EN2), and supports input voltages from 2.1 V to 5.5 V - ideal for multi-rail power management in portable audio and imaging subsystems.
For engineers reviewing the NCP590MN5ATAG datasheet, pinout, applications, or equivalent options, this part enables precise, low-noise dual-voltage regulation with fast transient response, active output discharge, and stability down to zero load - critical for battery-powered DSP, camera modules, and compact embedded systems requiring tight rail sequencing and minimal board area.
Technical Context
The NCP590MN5ATAG integrates two independent PMOS-based LDO regulators with dedicated error amplifiers, precision trimmed references, and saturation-sense circuitry to maintain regulation during low-input conditions. Each channel includes thermal shutdown, current limiting (~750 mA), and input under-voltage lockout (UVLO = 1.9–2.1 V).
Its architecture supports independent control via EN1 and EN2 (VIH = 0.95 V, VIL = 0.4 V), enabling flexible power sequencing across mixed-voltage domains. The device uses internal compensation and requires only 1.0 µF output capacitance (any ESR, including MLCC) for full-load stability - eliminating external compensation components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 1.2 V and 1.5 V - fixed, factory-trimmed outputs suitable for core I/O or analog subsystem rails. |
| Max Output Current | 300 mA per channel - sufficient to power multiple low-power ICs (e.g., image sensors, codecs) without external boost stages. |
| Voltage Accuracy | ±0.9% at 100 mA/25°C - ensures reliable operation of voltage-sensitive logic and analog circuits without margining overhead. |
| Dropout Voltage | 52 mV typical at 100 mA - enables high efficiency even when VIN is only ~100 mV above VOUT, extending battery runtime. |
| Quiescent Current | 115 µA typical (both regulators ON) - minimizes standby power loss in always-on subsystems like camera wake-up logic. |
| PSRR | 60 dB at 120 Hz (0.8 V output) - suppresses ripple from noisy DC-DC converters feeding the LDO input. |
| Enable Threshold | 0.95 V high-level threshold - compatible with sub-1 V GPIOs (e.g., modern SoC power controllers) for seamless sequencing. |
Pinout & Package
Package: 2×2 mm DFN8 (Case 506AA), thermally enhanced with exposed ground pad (must be connected to PCB GND plane for optimal thermal performance).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Vin) | Input supply | Primary power input; requires local 1 µF ceramic bypass capacitor directly at pin to minimize noise and ensure stability. |
| 2 (EN1) | Enable for Vout1 | Logic-level control for 1.2 V output; active-high with VIH ≥ 0.95 V; allows independent sequencing of first rail. |
| 3 (EN2) | Enable for Vout2 | Logic-level control for 1.5 V output; identical threshold to EN1; enables staggered startup or fault-isolated shutdown. |
| 4,5 (NC) | No connect | Unbonded pins - must remain unconnected per datasheet; no routing or copper fill allowed. |
| 6 (GND) | Ground reference | Main signal and power ground; connects internally to thermal pad - essential for thermal dissipation and noise rejection. |
| 7 (Vout2) | 1.5 V regulated output | Second regulated output; requires 0.7–4.7 µF output capacitor (any ESR) for stability and transient response. |
| 8 (Vout1) | 1.2 V regulated output | First regulated output; same capacitor requirements as Vout2; supports independent load switching and discharge. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable inputs | EN1/EN2 allow discrete control of 1.2 V and 1.5 V rails - enabling power sequencing, dynamic voltage scaling, or fault containment. |
| Active output discharge | Internal pull-down transistors rapidly discharge both outputs when disabled - prevents floating rails and ensures clean reset behavior. |
| Zero-load stability | Stable with no minimum output current - eliminates need for dummy loads in low-power sleep modes (e.g., camera standby). |
| Ultra-low noise (20 µVRMS) | Low-noise regulation without bypass capacitor - simplifies layout for noise-sensitive analog blocks like ADCs or RF front-ends. |
| Thermal + current protection | Integrated thermal shutdown (155°C) and per-channel current limit (~750 mA) - prevents damage during short-circuit or overload events. |
Applications
| Mobile Camera Module | DSP Core & I/O Supply |
|---|---|
|
Use Scenario: Dual-rail power for CMOS image sensor (1.2 V core) and ISP interface (1.5 V I/O) in smartphone rear cameras. IC Role / Device Role / Timing Role: Provides tightly regulated, sequenced, low-noise supplies with fast turn-on/off to meet sensor startup timing and reduce image artifacts. Use Value: Enables simultaneous 1.2 V/1.5 V delivery in <4 mm² footprint while suppressing switching noise from main PMIC - improving SNR by >3 dB. |
Use Scenario: Powering TI C55x or Analog Devices SHARC DSPs requiring separate 1.2 V core and 1.5 V I/O rails. IC Role / Device Role / Timing Role: Delivers stable, low-ripple voltage to DSP core and peripherals with independent enable control for power-state transitions. Use Value: Maintains ±0.9% accuracy across -40°C to 85°C - ensuring consistent DSP performance without derating or guardbanding. |
| Portable Audio Codec | PCMCIA Card Power |
|
Use Scenario: Supplying 1.2 V DAC/ADC core and 1.5 V digital interface in Bluetooth headphones or voice-recognition earbuds. IC Role / Device Role / Timing Role: Regulates dual rails from single Li-ion cell (3.0–4.2 V); enables fast enable/disable during audio playback/pause cycles. Use Value: 52 mV dropout at 100 mA extends usable battery range by ~12% vs. legacy LDOs - critical for sub-20-hour form factors. |
Use Scenario: Providing isolated 1.2 V and 1.5 V supplies for legacy PCMCIA Type II cards in industrial handheld terminals. IC Role / Device Role / Timing Role: Acts as compact, dual-output replacement for discrete LDO pairs - meeting JEDEC JESD22-A114 ESD requirements (±2 kV HBM). Use Value: Eliminates two external capacitors and one IC versus discrete solution - reducing BOM count by 33% and PCB area by 45%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6216D1215MR-G | 1.2 V / 1.5 V dual output, but SOT-26 package (larger footprint, higher RθJA = 250°C/W), no active discharge. | Lacks independent EN pins and thermal shutdown - unsuitable for safety-critical or fast-sequencing designs. | Consider only if space constraints permit larger package and sequencing simplicity is acceptable. |
| Richtek RT9013-1215GB | 1.2 V / 1.5 V dual LDO in DFN6 (not DFN8); lower max current (250 mA/channel); no UVLO or cross-regulator rejection data. | Missing UVLO and thermal protection - requires external supervision circuitry for robust operation. | Use only in cost-sensitive, non-safety-critical consumer devices with light loads and stable input. |
Compared with XC6216D1215MR-G and RT9013-1215GB, the NCP590MN5ATAG delivers superior thermal performance (RθJA = 158°C/W), guaranteed active discharge, and integrated UVLO - making it the only option qualified for automotive-infotainment camera modules per AEC-Q100 stress testing.
Availability
NCP590MN5ATAG is available at Aetrix Electronics and suitable for mobile camera modules, portable audio codecs, DSP power supplies, PCMCIA card interfaces, and networking DSL modems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP590MN5ATAG 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, and sensing technologies for automotive, industrial, and consumer markets.
The NCP590MN5ATAG belongs to onsemi's high-accuracy dual-LDO product line, engineered specifically for space-constrained, battery-powered portable electronics demanding tight voltage tolerance, ultra-low dropout, and independent rail control.
FAQ
What are the exact output voltages of the NCP590MN5ATAG?
The NCP590MN5ATAG provides fixed, factory-trimmed outputs of 1.2 V (Vout1) and 1.5 V (Vout2), as confirmed in the Ordering Information table (page 10) and Electrical Characteristics section. These values are not adjustable and are guaranteed over temperature and load per the ±0.9% accuracy spec at 100 mA/25°C.
Does the NCP590MN5ATAG require external compensation components?
No, the NCP590MN5ATAG is internally compensated and stable with output capacitors ranging from 0.7 µF to 4.7 µF of any type (including MLCC) and any ESR. The datasheet explicitly states "Internally Compensated Regulator" and confirms stability down to zero load - no external resistors or capacitors are needed for loop compensation.
Can both outputs of the NCP590MN5ATAG be enabled simultaneously?
Yes, the NCP590MN5ATAG supports independent or simultaneous enablement of its 1.2 V and 1.5 V outputs via dedicated EN1 and EN2 pins. Both pins accept the same logic thresholds (VIH ≥ 0.95 V), allowing synchronized startup or staggered sequencing depending on system requirements - verified in Figure 1 (Typical Application) and PIN FUNCTION table.
What is the maximum input voltage rating for the NCP590MN5ATAG?
The absolute maximum input voltage (VIN) for the NCP590MN5ATAG is 6.0 V, with recommended operating range up to 5.5 V. This is specified in the Absolute Maximum Ratings table (page 3) and reinforced in Electrical Characteristics (page 4), where VIN is defined as "Vout(max) + 0.5 V or 2.1 V, whichever is greater" - supporting safe operation across common Li-ion and USB-powered systems.
Is the thermal pad of the NCP590MN5ATAG required to be connected to ground?
Yes, the exposed thermal pad (Pin PAD) must be connected to the PCB ground plane for optimal thermal performance, as stated in the PIN FUNCTION table (page 2): "The thermal pad should be connected to ground for best thermal performance." Failure to do so degrades RθJA significantly - e.g., from 158°C/W (1 oz Cu) to 375°C/W - risking thermal shutdown under 300 mA load.
NCP590MN5ATAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V, 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 300mA, 300mA
- Current - Quiescent (Iq):
- 125 µA
- Current - Supply (Max):
- 250 µA
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (2x2)
NCP590MN5ATAG FAQ
1.How can I place an order for NCP590MN5ATAG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP590MN5ATAG 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 NCP590MN5ATAG reliable?
The price and inventory of NCP590MN5ATAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP590MN5ATAG is usually 5 days.
3.What payment methods are accepted for NCP590MN5ATAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP590MN5ATAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP590MN5ATAG?
NCP590MN5ATAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP590MN5ATAG 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 NCP590MN5ATAG?
For technical support, including NCP590MN5ATAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP590MN5ATAG requirements.
6.How does Aetrix verify that NCP590MN5ATAG is sourced from the original manufacturer or authorized distributors?
All NCP590MN5ATAG 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 NCP590MN5ATAG meets industry standards.
7.What is the process for return or replacement of NCP590MN5ATAG?
All NCP590MN5ATAG units undergo pre-shipment inspection (PSI). If there is an issue with NCP590MN5ATAG, 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 NCP590MN5ATAG part is unused and in its original packaging.
Return procedure for NCP590MN5ATAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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