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onsemi NCP693HMN12TCG
- Part No.:
- NCP693HMN12TCG
- Manufacturer:
- onsemi
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
NCP693HMN12TCG.pdf
- Description:
- IC REG LINEAR 1.2V 1A 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,957
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Product details
Overview
NCP693HMN12TCG from onsemi is a fixed-output, 1.2 V, 1 A CMOS low-dropout linear voltage regulator in a DFN 1.8×2 mm package with PMOS pass transistor, ±1.0% output voltage accuracy at 25°C, 6.5 V max input voltage, and chip-enable–controlled ultra-low-standby current (0.15–0.6 µA). It serves as the primary power rail for core logic in portable battery-powered instrumentation requiring stable low-voltage bias under dynamic load.
For engineers reviewing the NCP693HMN12TCG datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at 1 A (0.500–1.380 V), thermal shutdown threshold (165°C), PSRR (70 dB @ 1 kHz), output noise (45 µVRMS), and compatibility with ceramic or tantalum output capacitors ≥2.2 µF.
Technical Context
The NCP693HMN12TCG implements a PMOS-based LDO architecture with internal voltage reference, error amplifier, and current-limit/thermal-shutdown protection. Its enable pin (CE) provides logic-level control of output regulation, with defined turn-on/turn-off thresholds (VTH,CE = 1.0 V high, 0.4 V low) and pulldown current (0.3 µA).
Designed for high-current portable applications, it delivers 1 A output while maintaining tight regulation across −40°C to +85°C ambient, with load regulation of ≤120 mV from 1 mA to 1 A and line regulation of ≤0.1%/V over 1.6–6.5 V input range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.2 V ±1.0% at 10 mA, 25°C; ±1.35% over −40°C to +85°C - ensures stable core supply for low-voltage microcontrollers. |
| Max Input Voltage | 6.5 V - supports single-cell Li-ion (4.2 V), dual-cell alkaline (3.0 V), or regulated 5 V rails without external clamping. |
| Dropout Voltage | 0.500 V typ @ 1 A, 25°C - enables operation with only 1.7 V input for full 1.2 V output, critical for battery end-of-life. |
| Supply Current | 65–90 µA @ IOUT = 0 A, VIN = 6.5 V - minimizes quiescent drain in always-on subsystems. |
| Standby Current | 0.15–0.6 µA @ VCE = 0 V - enables multi-week battery shelf life in sleep-mode instrumentation. |
| PSRR | 70 dB @ 1 kHz, 200 mVPP, IOUT = 100 mA - suppresses switching noise from upstream DC-DC converters. |
| Thermal Shutdown | 165°C with 30°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
Package: UDFN6, 1.8 mm × 2.0 mm, 0.50 mm pitch, exposed thermal pad (EP = GND), RoHS-compliant Pb-free construction (Case 517BA).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | Vout | Dual parallel output pins reduce IR drop and improve current sharing; must be connected to same net as output capacitor. |
| 3, EP | GND | Power ground return path; exposed pad requires solder connection to PCB thermal plane for RJA = 114°C/W. |
| 4 | CE | Active-high enable: logic high ≥1.0 V enables regulation; logic low ≤0.4 V disables output and enters ultra-low-ISTBY. |
| 5, 6 | Vin | Dual parallel input pins minimize trace inductance and voltage drop; connect directly to bulk input capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low standby current | 0.15–0.6 µA enables >1-year battery life in intermittent-sampling handheld meters. |
| ±1.0% initial output accuracy | Meets tight tolerance requirements for ADC reference buffers and precision analog front-ends. |
| PMOS pass transistor | Eliminates need for external bypass capacitor; supports stable operation with ceramic output caps ≥2.2 µF. |
| Integrated thermal shutdown | 165°C trip with 30°C hysteresis prevents latch-up and allows safe recovery after fault clearance. |
| Low-noise output | 45 µVRMS (10 Hz–100 kHz) avoids interference in sensitive RF or audio signal chains. |
Applications
| Hand-Held Test Instruments | Battery-Powered Data Loggers |
|---|---|
|
Use Scenario: Portable multimeter with 16-bit SAR ADC and LCD display operating from two AA cells (1.8–3.0 V). IC Role / Device Role / Timing Role: Primary 1.2 V supply for microcontroller core and ADC reference, regulated from variable battery voltage. Use Value: Maintains <1.2 V ±13.5 mV accuracy across full temperature and load range, ensuring consistent measurement resolution. |
Use Scenario: Remote environmental sensor node logging temperature/humidity every 5 minutes using CR2032 coin cell. IC Role / Device Role / Timing Role: Low-quiescent LDO supplying MCU and sensor interface during active sampling; disabled between readings. Use Value: 0.15 µA standby current extends CR2032 lifetime beyond 2 years at 5-min wake intervals. |
| Camcorder Image Signal Processor | Portable Medical Pulse Oximeter |
|
Use Scenario: Compact camcorder with CMOS image sensor and ISP ASIC requiring clean 1.2 V core rail. IC Role / Device Role / Timing Role: Dedicated LDO for ISP digital core, decoupled from noisy motor and display supplies. Use Value: 70 dB PSRR at 1 kHz rejects switching noise from buck converter powering display backlight. |
Use Scenario: FDA-classified handheld pulse oximeter with optical sensor, analog front-end, and Bluetooth LE radio. IC Role / Device Role / Timing Role: Precision 1.2 V supply for analog sensor bias and ADC reference, isolated from digital switching transients. Use Value: 45 µVRMS output noise prevents baseline drift in photodiode current measurement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-1202E/MB | 1.2 V, 250 mA, 6 V max input, 1.5 µA quiescent, no enable pin - lower current, no CE control. | Suitable for low-power MCU cores but not 1 A loads like DSPs or FPGAs. | Select when system current <250 mA and enable functionality is unnecessary. |
| TLS850B2TE/V33 | 1.2 V, 500 mA, automotive-grade AEC-Q100, 30 µA quiescent, integrated watchdog - higher reliability, lower IQ, lower current. | Targeted for automotive body electronics; overqualified for consumer portables. | Select only if AEC-Q100 qualification and watchdog timer are mandatory system requirements. |
Compared with MCP1703T-1202E/MB and TLS850B2TE/V33, the NCP693HMN12TCG uniquely balances 1 A output capability, sub-µA standby, and compact DFN packaging-making it optimal for space-constrained, battery-critical instrumentation where both peak current and ultra-low sleep drain matter.
Availability
NCP693HMN12TCG is available at Aetrix Electronics and suitable for hand-held test instruments, battery-powered data loggers, and portable medical devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP693HMN12TCG 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 NCP693 series belongs to onsemi's precision analog LDO portfolio, designed specifically for portable battery-powered equipment demanding high output current, ultra-low quiescent current, and tight output voltage accuracy in minimal footprint.
FAQ
What is the maximum output current specification for the NCP693HMN12TCG?
The NCP693HMN12TCG is rated for continuous output current up to 1 A under recommended operating conditions (TA ≤ 85°C, proper PCB thermal design). Electrical characteristics confirm IOUT = 1 A in the "Output Current" row of the Electrical Characteristics table, with dropout voltage specified at this load. Derating is required above 85°C ambient or with inadequate copper area.
Does the NCP693HMN12TCG require an external pull-up resistor on the CE pin?
No, the NCP693HMN12TCG does not require an external pull-up on the CE pin. The datasheet explicitly states that if the enable function is unused, CE should be connected directly to Vin - not via a resistor. Internal circuitry ensures reliable activation without external biasing, simplifying layout for always-on configurations.
What is the minimum input voltage needed for the NCP693HMN12TCG to maintain regulation at 1 A output?
The minimum input voltage depends on dropout: at 1 A and 25°C, typical dropout is 0.500 V, so VIN(MIN) = 1.2 V + 0.500 V = 1.7 V. However, worst-case dropout reaches 1.380 V at 1 A and 25°C, requiring VIN ≥ 2.58 V for guaranteed regulation across process and temperature. Always verify against Figure 16 (Dropout vs. Output Current) for your specific thermal conditions.
Can the NCP693HMN12TCG be used with a 2.2 µF ceramic output capacitor?
Yes, the NCP693HMN12TCG is explicitly characterized and stabilized with 2.2 µF ceramic capacitors (COUT = 2.2 µF), as stated in the Electrical Characteristics test conditions and Applications Information section. Ceramic capacitors are preferred due to low ESR; tantalum types may cause instability if ESR is too high.
Is the NCP693HMN12TCG pin-compatible with other versions in the NCP693 family?
Yes, all NCP693 variants - including NCP693HMN08TCG, NCP693HMN10TCG, NCP693HMN25TCG, and NCP693HMN33TCG - share identical UDFN6 (1.8×2 mm) pinout and footprint (Case 517BA). Only the output voltage and top-side marking differ; no PCB redesign is needed when changing fixed-output variants.
NCP693HMN12TCG 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):
- 1.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.38V @ 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)
NCP693HMN12TCG FAQ
1.How can I place an order for NCP693HMN12TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP693HMN12TCG 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 NCP693HMN12TCG reliable?
The price and inventory of NCP693HMN12TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP693HMN12TCG is usually 5 days.
3.What payment methods are accepted for NCP693HMN12TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP693HMN12TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP693HMN12TCG?
NCP693HMN12TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP693HMN12TCG 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 NCP693HMN12TCG?
For technical support, including NCP693HMN12TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP693HMN12TCG requirements.
6.How does Aetrix verify that NCP693HMN12TCG is sourced from the original manufacturer or authorized distributors?
All NCP693HMN12TCG 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 NCP693HMN12TCG meets industry standards.
7.What is the process for return or replacement of NCP693HMN12TCG?
All NCP693HMN12TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP693HMN12TCG, 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 NCP693HMN12TCG part is unused and in its original packaging.
Return procedure for NCP693HMN12TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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