onsemi NCP693HMN08TCG
- Part No.:
- NCP693HMN08TCG
- Manufacturer:
- onsemi
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
NCP693HMN08TCG.pdf
- Description:
- IC REG LINEAR 0.8V 1A 6UDFN
- Quantity:
- Payment:

- Shipping:

Inventory:2,649
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Product details
Overview
NCP693HMN08TCG from onsemi is a fixed-output 0.8 V, 1 A CMOS low-dropout linear regulator in a DFN 1.8×2 mm package, featuring ±1.0% output voltage accuracy, ultra-low 65–90 µA quiescent current, and enable-controlled standby mode for portable battery-powered systems.
For engineers reviewing the NCP693HMN08TCG datasheet, pinout, applications, or equivalent options, this page delivers verified specifications, validated pin functions, confirmed thermal performance (RJA = 114 °C/W), real-world load transient behavior, and direct alternative comparisons - all tied explicitly to the NCP693HMN08TCG variant.
Technical Context
The NCP693HMN08TCG integrates a PMOS pass transistor, precision voltage reference, error amplifier, and thermal shutdown circuitry. It operates with input voltages from 1.6 V to 6.5 V and delivers stable 0.8 V output up to 1 A across −40°C to +85°C ambient.
Its enable (CE) pin supports logic-level control with 1.0 V turn-on and 0.4 V turn-off thresholds; when disabled, standby current drops to 0.15–0.6 µA. The device exhibits 70 dB PSRR at 1 kHz and 45 µVRMS output noise (10 Hz–100 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 0.8 V ±1.0% (±8 mV) at 10 mA, −40°C to +85°C |
| Max Output Current | 1 A continuous - supports high-current SoC core rails without external boost |
| Dropout Voltage | 0.78 V typical at 1 A (Vin ≥ 1.58 V) - enables operation from single Li-ion cell under full load |
| Quiescent Current | 65–90 µA at full load - minimizes battery drain in always-on subsystems |
| PSRR | 70 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters |
| Thermal Shutdown | 165°C with 30°C hysteresis - prevents latch-up during sustained overload |
| Package | UDFN6, 1.8×2 mm, 0.5 mm pitch - compact footprint for space-constrained portable PCBs |
Pinout & Package
Package: UDFN6 (Case 517BA), 1.8 mm × 2.0 mm, 0.5 mm pitch, exposed thermal pad (EP = GND). RoHS-compliant, Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | Vout | Dual parallel output pins reduce IR drop and improve current sharing - critical for 1 A delivery |
| 3, EP | GND | Power ground and thermal path via exposed pad - must be soldered to PCB copper for RJA = 114 °C/W |
| 4 | CE | Active-high enable: logic high ≥1.0 V enables regulator; ≤0.4 V disables it into 0.15–0.6 µA standby |
| 5, 6 | Vin | Dual parallel input pins lower series resistance - improves PSRR and reduces thermal stress at high Iin |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 65–90 µA operating / 0.15–0.6 µA standby - extends battery life in sleep-mode devices |
| High output accuracy | ±1.0% over temperature and line - eliminates need for post-regulation trimming in precision analog rails |
| Low dropout at full load | 0.78 V typical at 1 A - sustains regulation down to 1.58 V input, compatible with aging Li-ion cells |
| Integrated protection | Current limit (250 mA short-circuit), thermal shutdown (165°C), and ESD robustness (2 kV HBM) |
| Stable with ceramic capacitors | Works with 2.2 µF input/output ceramic caps - no ESR requirements simplify BOM and layout |
Applications
| Mobile SoC Core Power | Wearable Sensor Hub Supply |
|---|---|
Use Scenario: Powers ARM Cortex-M4 core in Bluetooth LE wearable with dynamic 10 mA–1 A load profile. IC Role / Device Role / Timing Role: Primary 0.8 V core LDO delivering clean, low-noise bias for digital logic and PLLs. Use Value: 45 µVRMS noise and 70 dB PSRR prevent clock jitter and bit errors during RF transmission bursts. |
Use Scenario: Supplies MEMS accelerometer, gyroscope, and ADC in compact fitness tracker. IC Role / Device Role / Timing Role: Low-quiescent, high-accuracy LDO enabling >7-day battery life in sleep-dominated operation. Use Value: 0.15 µA standby current and ±1.0% output stability maintain sensor calibration across temperature swings. |
| Portable Medical Monitor Rail | Industrial Handheld UI Processor |
Use Scenario: Provides regulated 0.8 V rail for low-power microcontroller in FDA-class II portable ECG device. IC Role / Device Role / Timing Role: Safety-critical power stage with thermal shutdown and current limiting for patient-connected electronics. Use Value: 165°C thermal cutoff and 250 mA short-circuit limit ensure fail-safe behavior during fault conditions. |
Use Scenario: Powers FPGA configuration logic and display interface in ruggedized barcode scanner. IC Role / Device Role / Timing Role: Input-tolerant LDO (6.5 V max Vin) accepting wide-range industrial battery or adapter inputs. Use Value: 1.6–6.5 V input range accommodates 2-cell Li-ion (6.4 V max) or 5 V USB while maintaining 0.8 V output. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1826T-0802E/DB | 0.8 V, 1 A, 250 mV dropout @ 1 A, 85 µA IQ, SOT-223 package (larger, higher RJA) | Requires larger PCB area; lacks dual-Vin/Vout pins for low-impedance routing | Choose if SOT-223 mounting is preferred and thermal margin >20°C is available. |
| Torex XC6210B082MR-G | 0.8 V, 1 A, 180 mV dropout @ 1 A, 40 µA IQ, USP-6B package (1.8×2.0 mm same size but no EP) | No exposed thermal pad → RJA ≈ 200 °C/W - limits continuous 1 A use without heatsinking | Choose only for intermittent 1 A loads or where ultra-low IQ outweighs thermal constraints. |
Compared with MCP1826T-0802E/DB and XC6210B082MR-G, the NCP693HMN08TCG uniquely combines DFN thermal performance (RJA = 114 °C/W), dual-pin current sharing, and guaranteed 0.8 V accuracy across temperature - making it optimal for compact, thermally constrained 1 A core-rail designs.
Availability
NCP693HMN08TCG is available at Aetrix Electronics and suitable for mobile SoC core power, wearable sensor hubs, portable medical monitors, industrial handheld UI processors, and battery-powered instrumentation requiring stable component supply and long-term lifecycle support.
Supply support for NCP693HMN08TCG 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 NCP693 series was designed specifically for high-current, low-voltage portable applications - targeting battery-powered instruments, handheld devices, and imaging equipment needing sub-1 V precision regulation with minimal quiescent power.
FAQ
What is the maximum input voltage rating for the NCP693HMN08TCG?
The NCP693HMN08TCG has an absolute maximum input voltage of 7 V, with recommended operating range from 1.6 V to 6.5 V. Exceeding 6.5 V risks exceeding internal PMOS gate oxide limits and may degrade long-term reliability. The 7 V rating is a stress limit - not for continuous operation.
Does the NCP693HMN08TCG require an external capacitor on the CE pin for stable enable/disable transitions?
No, the NCP693HMN08TCG does not require an external capacitor on the CE pin. Its enable threshold is internally buffered with hysteresis; Figure 24 confirms clean turn-off speed without added capacitance. If noise immunity is needed, a 100 pF ceramic cap to GND may be added - but it is not mandatory per datasheet design guidelines.
Can the NCP693HMN08TCG sustain 1 A output current continuously at 85°C ambient temperature?
Yes - with proper PCB thermal design. Using the stated 1 oz copper, 100 mm² spreading area, the NCP693HMN08TCG achieves RJA = 114 °C/W. At 1 A and 0.78 V dropout, power dissipation is 780 mW; junction temperature rise is 89°C, resulting in TJ = 174°C - above the 150°C limit. Derating to 800 mA or enhancing copper area is required for full 1 A at 85°C ambient.
Is the NCP693HMN08TCG pin-compatible with other variants in the NCP693 family, such as NCP693HMN12TCG?
Yes - all NCP693HMNxxTCG variants share identical UDFN6 (1.8×2 mm) pinout and footprint. Only the output voltage and top-marking differ (AM01 for 0.8 V, AM06 for 1.2 V, etc.). No PCB redesign is needed when swapping between fixed-voltage versions within the H-series.
What is the purpose of the dual Vout and dual Vin pins on the NCP693HMN08TCG?
The dual Vout (pins 1 & 2) and dual Vin (pins 5 & 6) reduce effective series resistance and inductance per path, lowering voltage drop and improving high-frequency PSRR. This design enables reliable 1 A delivery while minimizing thermal concentration - confirmed by the internal block diagram and pin function table in the official datasheet.
NCP693HMN08TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.65V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 90 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-UDFN (1.8x2)
NCP693HMN08TCG FAQ
1.How can I place an order for NCP693HMN08TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP693HMN08TCG 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 NCP693HMN08TCG reliable?
The price and inventory of NCP693HMN08TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP693HMN08TCG is usually 5 days.
3.What payment methods are accepted for NCP693HMN08TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP693HMN08TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP693HMN08TCG?
NCP693HMN08TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP693HMN08TCG 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 NCP693HMN08TCG?
For technical support, including NCP693HMN08TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP693HMN08TCG requirements.
6.How does Aetrix verify that NCP693HMN08TCG is sourced from the original manufacturer or authorized distributors?
All NCP693HMN08TCG 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 NCP693HMN08TCG meets industry standards.
7.What is the process for return or replacement of NCP693HMN08TCG?
All NCP693HMN08TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP693HMN08TCG, 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 NCP693HMN08TCG part is unused and in its original packaging.
Return procedure for NCP693HMN08TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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