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onsemi NCP4588DSQ15T1G
- Part No.:
- NCP4588DSQ15T1G
- Manufacturer:
- onsemi
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
NCP4588DSQ15T1G.pdf
- Description:
- IC REG LINEAR 1.5V 200MA SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:1,208
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Product details
Overview
NCP4588DSQ15T1G from onsemi is a 200 mA, 1.5 V fixed-output CMOS LDO linear voltage regulator in SC−70 package, featuring capacitor-free stability, 270 mV dropout at 200 mA, 9.5 µA quiescent current, and 65 dB PSRR at 1 kHz - deployed in portable cameras and battery-powered communication equipment where board space and power efficiency are critical.
For engineers reviewing the NCP4588DSQ15T1G datasheet, pinout, applications, or equivalent options, key selection criteria include output capacitor elimination capability, auto-discharge functionality (D-version), thermal performance in SC−70, and compatibility with 1.4–5.25 V input rails in space-constrained low-power systems.
Technical Context
The NCP4588DSQ15T1G implements a CMOS pass device architecture with internal voltage reference and error amplifier, enabling stable regulation without output capacitance. Its enable-controlled shutdown includes active pull-down and auto-discharge via an integrated N-channel transistor between VOUT and GND.
It operates across −40°C to +85°C ambient, supports 1.4–5.25 V input, delivers 1.5 V ±1% output accuracy over temperature, and maintains 25 mV load regulation from 1 mA to 200 mA - optimized for transient response in battery-fed loads with rapid current changes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±1% at TA = 25°C; ±15 mV over −40°C to +85°C - ensures stable core/bias rail for low-voltage logic and sensors. |
| Max Output Current | 200 mA continuous - sufficient for single-core microcontrollers, RF front-ends, or image sensor biasing. |
| Dropout Voltage | 270 mV at IOUT = 200 mA, VIN = 3.0 V - enables operation down to ~1.77 V input while maintaining regulation. |
| Quiescent Current | 9.5 µA typical - minimizes standby drain in always-on battery systems like IoT edge nodes. |
| PSRR | 65 dB at 1 kHz (1.2 V < VOUT < 2.2 V) - suppresses switching noise from DC/DC converters feeding the LDO input. |
| Stability | Stable with no output capacitor - eliminates BOM cost, footprint, and reliability risk of external ceramic cap. |
| Enable Threshold | VCEH = 1.0 V min, VCEL = 0.4 V max - compatible with 1.8 V and 3.3 V GPIO control without level-shifting. |
Pinout & Package
SC−70−5 package (Case 419A−02), 1.8 × 1.35 × 0.9 mm, Pb−Free, moisture sensitivity level 1. Pin 1 = VIN, Pin 2 = GND, Pin 3 = CE, Pin 4 = VOUT, Pin 5 = NC (no connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input supply connection | Accepts 1.4–5.25 V; requires 100 nF ceramic decoupling placed adjacent to pin for line transient immunity. |
| GND (Pin 2) | Power ground reference | Low-impedance return path for input/output currents; must be routed with minimal trace inductance. |
| CE (Pin 3) | Active-high chip enable | Pulled internally to GND; connect to VIN if always-on operation required; enables fast turn-off with auto-discharge. |
| VOUT (Pin 4) | Regulated output | Delivers 1.5 V ±1%; D-version integrates discharge FET to rapidly collapse output when disabled. |
| NC (Pin 5) | No connection | Internally unconnected; must remain floating - no PCB trace or solder mask opening required. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitor-free operation | Eliminates mandatory output capacitor - reduces BOM count, PCB area, and failure modes in harsh environments. |
| Auto-discharge function | D-version integrates dedicated N-ch FET to discharge VOUT within microseconds upon CE deactivation - prevents back-powering or latch-up in multi-rail systems. |
| Ultra-low quiescent current | 9.5 µA typical - extends battery life in maintenance-free devices such as wireless sensors and wearables. |
| High PSRR at 1 kHz | 65 dB for 1.5 V output - effectively filters ripple from upstream switching regulators without additional LC filtering. |
| Thermal robustness | RJA = 263°C/W (SC−70) - supports 200 mA operation up to +85°C ambient with standard 2-layer FR4 layout. |
Applications
| Portable Cameras | Bluetooth Headsets |
|---|---|
Use Scenario: Powering CMOS image sensor analog front-end and ISP core logic in compact camera modules. IC Role / Device Role / Timing Role: Primary 1.5 V bias rail regulator with fast load transient response and zero-output-capacitor footprint. Use Value: Enables sub-5 mm² module size by removing output capacitor; auto-discharge prevents sensor latch-up during sleep/wake cycles. | Use Scenario: Supplying Bluetooth baseband processor and audio codec in battery-operated wireless headsets. IC Role / Device Role / Timing Role: Low-noise, low-IQ LDO delivering clean 1.5 V for digital core and PLL circuits. Use Value: 9.5 µA quiescent current extends talk time; 65 dB PSRR rejects noise from RF transceiver switching. |
| Medical Wearables | Industrial Sensor Nodes |
Use Scenario: Regulating power for ultra-low-power ECG/PPG analog signal chain and BLE SoC in patch-style monitors. IC Role / Device Role / Timing Role: Always-on 1.5 V supply with guaranteed start-up down to 1.4 V input from coin cell or energy harvester. Use Value: Stable regulation without output cap improves reliability in high-vibration or thermally cycling medical enclosures. | Use Scenario: Providing precision 1.5 V reference and bias for MEMS accelerometers and ADC drivers in remote condition-monitoring nodes. IC Role / Device Role / Timing Role: Low-drift, low-noise LDO supporting <100 ppm/°C output tempco and 80 µVRMS noise. Use Value: 1% output accuracy and 100 ppm/°C tempco ensure measurement integrity across −40°C to +85°C industrial range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1502E/TT | 1.5 V, 250 mA, 1.6 µA IQ, but requires 1 µF output capacitor; no auto-discharge. | Lacks capacitor-free operation and VOUT discharge - unsuitable where board area or fast shutdown is critical. | Select only if ultra-low IQ outweighs capacitor elimination and discharge needs. |
| Torex XC6206P152MR-G | 1.5 V, 250 mA, 1 µA IQ, stable with no output cap, but no CE pin or auto-discharge. | Fixed-on operation only; cannot support dynamic power sequencing or multi-rail isolation. | Choose when always-on, lowest-power operation is primary - not for systems requiring controlled enable/disable. |
Compared with MCP1700T-1502E/TT and XC6206P152MR-G, the NCP4588DSQ15T1G uniquely combines capacitor-free stability, active enable control, and integrated auto-discharge - making it optimal for space-constrained, sequenced-power applications where output rail collapse timing matters.
Availability
NCP4588DSQ15T1G is available at Aetrix Electronics and suitable for portable cameras, Bluetooth headsets, and medical wearables requiring stable component supply, long-lifecycle availability, and RoHS-compliant packaging.
Supply support for NCP4588DSQ15T1G 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 manufacturer specializing in energy-efficient power management, analog, sensor, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The NCP4588DSQ15T1G belongs to the NCP4588 family of ultra-low-IQ, capacitor-free LDOs designed specifically for battery-powered portable electronics where minimal footprint, high PSRR, and fast enable/disable sequencing are essential.
FAQ
What is the output voltage tolerance of the NCP4588DSQ15T1G over temperature?
The NCP4588DSQ15T1G delivers 1.5 V output with ±1% initial accuracy at 25°C, tightening to ±15 mV (±1%) over −40°C to +85°C ambient per datasheet Section 3, Electrical Characteristics. This ensures consistent biasing for 1.5 V logic and analog circuits across full industrial temperature range without recalibration.
Does the NCP4588DSQ15T1G require an output capacitor for stability?
No - the NCP4588DSQ15T1G is explicitly designed and characterized to be stable with no output capacitor, as confirmed in the datasheet title, Features list, Figure 1 schematic note, and Application Information section. This eliminates BOM cost and PCB area while improving reliability in vibration-prone or high-temperature deployments.
What is the purpose of the NC pin on the NCP4588DSQ15T1G SC−70 package?
Pin 5 of the NCP4588DSQ15T1G is marked NC (No Connection) per the Pin Function Description table on page 2 of the datasheet. It is internally unconnected and must remain electrically floating - no trace, pad, or solder should be attached to this pin to avoid unintended coupling or mechanical stress on the die bond wire.
How does the auto-discharge feature work in the NCP4588DSQ15T1G?
The "D" suffix in NCP4588DSQ15T1G denotes inclusion of an internal N-channel transistor between VOUT and GND. When the CE pin is driven low, this FET activates and discharges the output node rapidly - verified in Figures 42–44 (Shutdown waveforms) - preventing back-powering of upstream circuitry or latched states in multi-supply systems.
What is the maximum input voltage rating for the NCP4588DSQ15T1G?
The absolute maximum input voltage for the NCP4588DSQ15T1G is 6.0 V, as specified in the Absolute Maximum Ratings table (page 2). Operation above 5.25 V is outside recommended conditions and may compromise reliability or parametric performance, even if below the 6.0 V damage threshold.
NCP4588DSQ15T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.25V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 25 µA
- Current - Supply (Max):
- -
- PSRR:
- 65dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-88A (SC-70-5/SOT-353)
NCP4588DSQ15T1G FAQ
1.How can I place an order for NCP4588DSQ15T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4588DSQ15T1G 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 NCP4588DSQ15T1G reliable?
The price and inventory of NCP4588DSQ15T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4588DSQ15T1G is usually 5 days.
3.What payment methods are accepted for NCP4588DSQ15T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4588DSQ15T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4588DSQ15T1G?
NCP4588DSQ15T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4588DSQ15T1G 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 NCP4588DSQ15T1G?
For technical support, including NCP4588DSQ15T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4588DSQ15T1G requirements.
6.How does Aetrix verify that NCP4588DSQ15T1G is sourced from the original manufacturer or authorized distributors?
All NCP4588DSQ15T1G 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 NCP4588DSQ15T1G meets industry standards.
7.What is the process for return or replacement of NCP4588DSQ15T1G?
All NCP4588DSQ15T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP4588DSQ15T1G, 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 NCP4588DSQ15T1G part is unused and in its original packaging.
Return procedure for NCP4588DSQ15T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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