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onsemi NCP585LSAN09T1G
- Part No.:
- NCP585LSAN09T1G
- Manufacturer:
- onsemi
- Package:
- 6-VQFN Exposed Pad
- Datasheet:
-
NCP585LSAN09T1G.pdf
- Description:
- IC REG LINEAR 0.9V 300MA 6HSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,326
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Product details
Overview
NCP585LSAN09T1G from onsemi is a tri-mode 300 mA CMOS low-dropout regulator with active-low enable, fixed 0.9 V output, and HSON-6 packaging. It delivers 2% output voltage accuracy, 550 mV dropout at 300 mA (FT mode), and ultra-low 3.5 µA quiescent current in LP mode - optimized for battery-powered portable equipment requiring precise, low-power voltage regulation.
For engineers reviewing the NCP585LSAN09T1G datasheet, pinout, applications, or equivalent options, key selection considerations include its active-low CE logic, ECO pin-controlled Fast Transient/Low Power mode switching, 0.9 V fixed output compatibility with sub-1 V digital cores, and HSON-6 thermal performance in space-constrained handheld designs.
Technical Context
The NCP585LSAN09T1G implements a CMOS-based LDO architecture with three operational modes: Chip Enable (CE), Fast Transient (FT), and Low Power (LP), selected via the ECO pin (VECO = Vin for FT, GND for LP). Its internal reference and error amplifier maintain tight regulation across load (1–300 mA) and line (1.4–6.0 V input) variations.
Mode-dependent performance is rigorously defined: FT mode prioritizes transient response (40 mV load regulation, 70 dB PSRR at 1 kHz), while LP mode minimizes quiescent current (3.5 µA for Vout < 1.6 V) at the cost of relaxed load regulation (15 mV) and reduced PSRR. The device includes foldback current limiting and auto-discharge capability only in active-high variants - not supported in this active-low version.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 0.9 V ±2% (FT mode); ±3% (LP mode) - ensures stable supply for 0.9 V I/O or core rails in portable SoCs. |
| Max Output Current | 300 mA - supports moderate-power peripherals like sensors, RF front-ends, or microcontroller subsystems. |
| Dropout Voltage | 550 mV @ 300 mA (FT mode, Vout = 0.9 V) - enables operation down to Vin = 1.45 V, extending battery life in single-cell Li-ion or Li-poly systems. |
| Quiescent Current | 3.5 µA (LP mode, Vout < 1.6 V); 80 µA (FT mode, Vout < 1.8 V) - critical for always-on functions in sleep-state power budgeting. |
| PSRR | 70 dB @ 1 kHz (Iout = 50 mA, Vout = 0.9 V) - suppresses switching noise from DC-DC converters feeding the LDO input. |
| Line Regulation | 0.01%/V (FT mode); 0.05%/V (LP mode) - maintains output stability despite battery voltage sag during discharge. |
| Operating Input Range | 1.4 V to 6.0 V - accommodates single-cell Li-ion (2.7–4.2 V), NiMH (0.9–1.4 V per cell), or regulated 3.3/5 V rails. |
Pinout & Package
HSON-6 package (Case 506AE), 2.9 mm × 3.0 mm × 0.75 mm body, exposed thermal pad, Pb-free, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Vin) | Power input | Accepts 1.4–6.0 V supply; requires 1.0 µF ceramic decoupling to GND per datasheet layout guidance. |
| 2 (GND) | Ground reference | Power ground return path; connects to PCB thermal pad for enhanced heat dissipation in HSON-6. |
| 3 (CE) | Active-low chip enable | Pull high (>1.0 V) to enable regulation; pull low (<0.3 V) to enter shutdown (ISD = 0.1 µA). |
| 4 (ECO) | Mode selection control | Connect to Vin for Fast Transient mode; connect to GND for Low Power mode - no internal pull-up/down. |
| 5 (Vout) | Regulated output | Delivers fixed 0.9 V ±2%; requires 1.0 µF low-ESR capacitor placed adjacent to pin per stability guidelines. |
| 6 (NC) | No connect | Internally unconnected; must remain floating - no external tie or routing. |
Key Features
| Feature | Design Value |
|---|---|
| Tri-mode operation | Enables dynamic trade-off between efficiency (LP), responsiveness (FT), and full disable (CE) without external circuitry. |
| Ultra-low LP-mode IQ | 3.5 µA quiescent current extends shelf life and runtime in battery-backed real-time clocks or sensor wake-up circuits. |
| Low dropout at 0.9 V | 550 mV dropout allows >90% energy extraction from 1.5 V alkaline cells before regulation loss. |
| High PSRR at 1 kHz | 70 dB rejection mitigates ripple from upstream switching regulators, reducing need for additional filtering stages. |
| Thermal-enhanced HSON-6 | Exposed pad and 400 mW power dissipation rating support 300 mA loads in compact handheld enclosures. |
Applications
| Portable Medical Sensors | Wearable Fitness Trackers |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) with Bluetooth LE radio and analog front-end operating from coin-cell battery. IC Role / Device Role / Timing Role: Primary 0.9 V supply for ultra-low-power MCU core and ADC reference. Use Value: LP mode's 3.5 µA IQ minimizes standby drain; 2% accuracy ensures consistent ADC gain calibration across temperature. | Use Scenario: Optical heart-rate sensor module powered by rechargeable Li-poly cell with aggressive sleep/wake cycling. IC Role / Device Role / Timing Role: Stable 0.9 V rail for photodiode amplifier and pulse-width modulation LED driver. Use Value: FT mode's 40 mV load regulation maintains signal integrity during rapid LED current transients; HSON-6 footprint saves board area. |
| Industrial Handheld Scanners | Smart Remote Controls |
Use Scenario: Barcode scanner with laser diode, imager, and BLE connectivity running on two AA batteries. IC Role / Device Role / Timing Role: Main 0.9 V supply for ARM Cortex-M0+ processor and image sensor interface. Use Value: 550 mV dropout enables operation down to 1.45 V input, supporting full battery range (3.0–1.8 V per cell) without brownout. | Use Scenario: IR/RF universal remote with voice assistant mic and motion detection, powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Always-on 0.9 V supply for accelerometer and wake-on-motion logic. Use Value: Active-low CE allows direct connection to MCU GPIO for zero-power shutdown; 0.1 µA shutdown current preserves multi-year battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-0902E/TT | Fixed 0.9 V, SOT-23-5, 250 mA max, 6 µA IQ (typ), no tri-mode, no ECO pin | Lacks mode switching; suitable only for static low-power use, not dynamic load scenarios | Select when design requires lowest possible BOM count and no transient optimization is needed. |
| Torex XC6209B092MR-G | Fixed 0.9 V, SOT-25, 300 mA, 1 µA IQ (LP), CE pin but no ECO mode control | Lower IQ than NCP585LSAN09T1G LP mode, but no Fast Transient capability or HSON-6 thermal option | Prefer for ultra-long-life coin-cell applications where transient response is secondary to minimum IQ. |
Compared with MCP1700T-0902E/TT and XC6209B092MR-G, the NCP585LSAN09T1G uniquely balances ultra-low IQ, fast transient response, and thermal-efficient HSON-6 packaging - making it optimal for space-constrained, dynamically loaded portable systems requiring both efficiency and responsiveness.
Availability
NCP585LSAN09T1G is available at Aetrix Electronics and suitable for portable medical sensors, wearable fitness trackers, industrial handheld scanners, and smart remote controls requiring stable component supply with guaranteed long-term manufacturability.
Supply support for NCP585LSAN09T1G 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP585 series was designed specifically for portable battery-powered devices demanding precision output voltage, ultra-low quiescent current, and high ripple rejection - with tri-mode operation enabling adaptive power management across diverse usage states.
FAQ
What is the maximum input voltage rating for the NCP585LSAN09T1G?
The NCP585LSAN09T1G has an absolute maximum input voltage (Vin) rating of 6.5 V. However, the recommended operating input voltage range is 1.4 V to 6.0 V per electrical characteristics testing conditions. Exceeding 6.5 V risks permanent damage; sustained operation above 6.0 V may degrade long-term reliability even if within absolute maximums. Always refer to the "Maximum Ratings" table on page 3 of the official NCP585 datasheet for derating guidance.
Does the NCP585LSAN09T1G support auto-discharge functionality?
No, the NCP585LSAN09T1G does not support auto-discharge. Auto-discharge is only implemented in active-high enable variants (e.g., NCP585DSAN09T1G), which include an internal N-channel MOSFET to rapidly discharge the output capacitor when disabled. The NCP585LSAN09T1G uses active-low CE logic and lacks this feature - output discharge relies solely on external load or bleed resistors.
How does the ECO pin affect dropout voltage in the NCP585LSAN09T1G?
The ECO pin directly determines dropout voltage behavior: when ECO = Vin (FT mode), dropout is 550 mV at 300 mA for 0.9 V output; when ECO = GND (LP mode), dropout increases to 590 mV under identical conditions. This reflects the trade-off between transient performance and quiescent current - LP mode sacrifices ~40 mV of headroom to achieve 3.5 µA IQ versus 80 µA in FT mode.
Can the NCP585LSAN09T1G be used with ceramic output capacitors?
Yes, the NCP585LSAN09T1G is stable with ceramic output capacitors. The datasheet recommends a 1.0 µF ceramic capacitor with low ESR placed close to the Vout pin. Stability curves (Figures 32–35) confirm stable operation across 0.1 µF to 100 µF capacitance values in both FT and LP modes, provided ESR remains within specified bounds for the given load current.
What is the thermal performance difference between HSON-6 and SOT-23-5 packages for the NCP585LSAN09T1G?
The HSON-6 package (NCP585LSAN09T1G) offers superior thermal performance versus SOT-23-5: its power dissipation rating is 400 mW (vs. 250 mW for SOT-23-5), enabled by the exposed thermal pad. This allows sustained 300 mA operation at higher ambient temperatures or with less PCB copper area - critical for thermally dense handheld designs where the SOT-23-5 variant may require derating.
NCP585LSAN09T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-VQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.9V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.8V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 90 µA
- Current - Supply (Max):
- 111 µA
- PSRR:
- 75dB ~ 65dB (120Hz ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-HSON (2.9x3)
NCP585LSAN09T1G FAQ
1.How can I place an order for NCP585LSAN09T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP585LSAN09T1G 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 NCP585LSAN09T1G reliable?
The price and inventory of NCP585LSAN09T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP585LSAN09T1G is usually 5 days.
3.What payment methods are accepted for NCP585LSAN09T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP585LSAN09T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP585LSAN09T1G?
NCP585LSAN09T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP585LSAN09T1G 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 NCP585LSAN09T1G?
For technical support, including NCP585LSAN09T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP585LSAN09T1G requirements.
6.How does Aetrix verify that NCP585LSAN09T1G is sourced from the original manufacturer or authorized distributors?
All NCP585LSAN09T1G 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 NCP585LSAN09T1G meets industry standards.
7.What is the process for return or replacement of NCP585LSAN09T1G?
All NCP585LSAN09T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP585LSAN09T1G, 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 NCP585LSAN09T1G part is unused and in its original packaging.
Return procedure for NCP585LSAN09T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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