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onsemi NCP694HSAN10T1G
- Part No.:
- NCP694HSAN10T1G
- Manufacturer:
- onsemi
- Package:
- 6-VQFN Exposed Pad
- Datasheet:
-
NCP694HSAN10T1G.pdf
- Description:
- IC REG LINEAR 1V 1A 6HSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,856
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Product details
Overview
NCP694HSAN10T1G from onsemi is a 1.0 V fixed-output, 1 A CMOS low-dropout linear voltage regulator in HSON-6 package, featuring −3 mV load regulation at 1 A, ultra-low standby current (≤1.0 µA), and enable-controlled shutdown for portable battery-powered systems.
For engineers reviewing the NCP694HSAN10T1G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, thermal behavior, CE-controlled standby operation, and HSON-6 layout-critical design guidance for handheld instruments and camcorders.
Technical Context
The NCP694HSAN10T1G integrates a PMOS pass transistor, precision voltage reference (1.0 V ±3%), error amplifier, and thermal shutdown circuitry. It operates with input voltages from 1.4 V to 6.0 V and maintains regulation down to 100 mV dropout at light loads.
Its enable (CE) pin supports logic-level control with 0–0.4 V low threshold and 1.0–6.0 V high threshold; when disabled, it enters ultra-low-power standby (≤1.0 µA). The device lacks auto-discharge functionality-exclusive to D-version variants-and uses dual VOUT pins (Pins 1 & 2) for enhanced current handling in the HSON-6 package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.0 V ±3% (0.97–1.03 V) at 100 mA, 25°C - ensures stable core supply for low-voltage microcontrollers. |
| Max Output Current | 1 A continuous - supports high-current digital loads without external boost circuitry. |
| Dropout Voltage | 0.18 V typical at 300 mA; 0.56 V at 1 A - enables operation from single-cell Li-ion (3.0–4.2 V) or two-cell alkaline (2.4–3.2 V) sources. |
| Load Regulation | −3 mV from 1 mA to 1 A - minimizes output sag during dynamic CPU or RF transceiver load steps. |
| PSRR | 70 dB at 1 kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Standby Current | ≤1.0 µA at VCE = 0 V, VIN = 6.0 V - extends battery life in always-on sensor or RTC backup rails. |
| Thermal Shutdown | 150°C activation with 30°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking. |
Pinout & Package
HSON-6 (Case 506AE) package: 2.9 mm × 3.0 mm × 0.9 mm body, exposed thermal pad, Pb-free, RoHS-compliant. Designed for high-density portable PCBs with optimized thermal conduction via soldered pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | VOUT | Dual parallel output terminals - reduce trace resistance and IR drop; must be routed together to shared load capacitance. |
| 3 | ADJ / NC | No connection for fixed-output NCP694HSAN10T1G - left floating or grounded per layout best practice; not used for voltage setting. |
| 4 | GND | Power ground return - requires low-inductance connection to thermal pad and bulk capacitor negative terminal. |
| 5 | CE | Active-high enable - pulled high to VIN for normal operation; driven low to disable regulator and enter ≤1 µA standby. |
| 6 | VIN | Input supply - must be decoupled with ≥4.7 µF ceramic capacitor placed within 2 mm of Pin 6 and Pin 4. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 0.18 V at 300 mA enables use with <3.0 V input sources while delivering full 1.0 V output. |
| High PSRR (70 dB @ 1 kHz) | Rejects ripple from noisy switchers - critical for powering ADCs, PLLs, or RF receivers without added filtering. |
| Low quiescent current (60–100 µA) | Minimizes no-load power loss in always-on subsystems like real-time clocks or wake-up controllers. |
| Thermal shutdown + hysteresis | 150°C trip with 30°C recovery gap prevents oscillation during intermittent overloads on compact PCBs. |
| HSON-6 dual-VOUT configuration | Reduces effective output impedance by ~50% versus single-pin packages - improves transient response under 1 A load steps. |
Applications
| Handheld Medical Sensors | Wearable Fitness Trackers |
|---|---|
Use Scenario: Continuous ECG signal acquisition powered by coin-cell or rechargeable Li-poly battery. IC Role / Device Role / Timing Role: Primary 1.0 V supply for ultra-low-power analog front-end and ARM Cortex-M0+ MCU core. Use Value: 0.56 V dropout at 1 A allows >90% battery utilization down to 1.56 V input; 70 dB PSRR eliminates switching noise coupling into 24-bit ADC. |
Use Scenario: Compact wrist-worn device with optical heart-rate sensor and Bluetooth LE radio. IC Role / Device Role / Timing Role: Stable 1.0 V rail for BLE SoC digital core and sensor interface logic. Use Value: ≤1.0 µA standby current extends shelf life during packaging and storage; dual VOUT pins minimize voltage droop during BLE transmit bursts. |
| Industrial Hand Scanners | Portable Test & Measurement Meters |
Use Scenario: Rugged barcode scanner operating from 2×AA batteries across −20°C to +60°C ambient. IC Role / Device Role / Timing Role: Main 1.0 V regulator for image sensor interface and FPGA configuration logic. Use Value: −3 mV load regulation ensures consistent pixel clock timing across 1–1000 mA scan engine current pulses; 100 ppm/°C tempco maintains ADC reference stability. |
Use Scenario: Battery-operated multimeter with LCD display, precision op-amps, and isolated serial interface. IC Role / Device Role / Timing Role: Low-noise 1.0 V supply for 16-bit SAR ADC reference buffer and microcontroller core. Use Value: 30 µVRMS output noise (10 Hz–100 kHz) avoids digitization errors; thermal shutdown protects against probe short-circuit faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0510PDBVR | 1.0 V fixed, 200 mA max, 170 mV dropout at 200 mA, SOT-23-5 package | Lower current capability; unsuitable for 1 A loads; smaller footprint but higher thermal resistance (RJA = 216°C/W) | Select only if system peak current ≤200 mA and board space is constrained beyond HSON-6 limits. |
| MCP1700T-1002E/MB | 1.0 V fixed, 250 mA max, 600 mV dropout at 250 mA, SOT-23-3 package | No enable pin; no thermal shutdown; significantly higher dropout limits usable input range | Use only in non-critical, low-power applications where enable control and fault protection are unnecessary. |
Compared with TPS7A0510PDBVR and MCP1700T-1002E/MB, the NCP694HSAN10T1G uniquely delivers 1 A output with sub-0.2 V dropout and integrated enable/thermal protection in a thermally efficient HSON-6 package-making it the sole fit for high-current, battery-constrained portable instrumentation.
Availability
NCP694HSAN10T1G is available at Aetrix Electronics and suitable for handheld medical sensors, wearable fitness trackers, industrial hand scanners, and portable test & measurement meters requiring stable component supply with guaranteed long-term manufacturability.
Supply support for NCP694HSAN10T1G 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, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The NCP694HSAN10T1G belongs to the NCP694 series of super-low-dropout LDOs designed specifically for high-current, battery-powered portable electronics where minimal voltage headroom and ultra-low standby power are mandatory.
FAQ
What is the maximum input voltage rating for the NCP694HSAN10T1G?
The NCP694HSAN10T1G has an absolute maximum input voltage rating of 6.5 V. Its recommended operating input range is 1.4 V to 6.0 V. Exceeding 6.5 V may cause permanent damage. For reliable operation with 3.7 V Li-ion batteries, the NCP694HSAN10T1G provides sufficient margin up to full charge (4.2 V) plus transient spikes.
Does the NCP694HSAN10T1G include thermal shutdown protection?
Yes, the NCP694HSAN10T1G incorporates thermal shutdown protection that activates at 150°C junction temperature with 30°C hysteresis. This feature is confirmed in the Electrical Characteristics table (page 4) and Typical Characteristics (Figure 35). It safeguards the NCP694HSAN10T1G during sustained overload or inadequate PCB copper area.
Can the NCP694HSAN10T1G be used with ceramic output capacitors?
Yes, the NCP694HSAN10T1G is explicitly qualified for use with ceramic output capacitors of ≥4.7 µF, as stated in the Applications Information section (page 6). Ceramic capacitors are preferred for their low ESR, which improves transient response and avoids potential oscillation issues associated with high-ESR tantalum types.
What is the purpose of Pin 3 (ADJ/NC) on the NCP694HSAN10T1G?
Pin 3 is labeled ADJ/NC because the NCP694HSAN10T1G is a fixed-output variant - the "ADJ" designation indicates compatibility with adjustable versions in the same family, but Pin 3 serves no function and must be left unconnected (NC). It is not tied to internal circuitry and should not be grounded or biased.
How does the enable (CE) pin behave during power-up and shutdown sequences?
The CE pin is active-high with logic thresholds of 0–0.4 V (low = disable) and 1.0–6.0 V (high = enable). When CE is pulled low, the NCP694HSAN10T1G disables its output and draws ≤1.0 µA. During power-up, the regulator remains off until CE exceeds 1.0 V; no external reset delay is required. This behavior is validated in Figures 31–34 of the datasheet.
NCP694HSAN10T1G 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):
- 1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.64V @ 1A (Typ)
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 100 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-HSON (2.9x3)
NCP694HSAN10T1G FAQ
1.How can I place an order for NCP694HSAN10T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP694HSAN10T1G 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 NCP694HSAN10T1G reliable?
The price and inventory of NCP694HSAN10T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP694HSAN10T1G is usually 5 days.
3.What payment methods are accepted for NCP694HSAN10T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP694HSAN10T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP694HSAN10T1G?
NCP694HSAN10T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP694HSAN10T1G 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 NCP694HSAN10T1G?
For technical support, including NCP694HSAN10T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP694HSAN10T1G requirements.
6.How does Aetrix verify that NCP694HSAN10T1G is sourced from the original manufacturer or authorized distributors?
All NCP694HSAN10T1G 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 NCP694HSAN10T1G meets industry standards.
7.What is the process for return or replacement of NCP694HSAN10T1G?
All NCP694HSAN10T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP694HSAN10T1G, 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 NCP694HSAN10T1G part is unused and in its original packaging.
Return procedure for NCP694HSAN10T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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