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Analog Devices Inc./Maxim Integrated ICL7663AESA
- Part No.:
- ICL7663AESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ICL7663AESA.pdf
- Description:
- IC REG LINEAR PROGRAMMABLE VOLT
- Quantity:
- Payment:
- Shipping:
Inventory:4,094
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Product details
Overview
ICL7663AESA from Maxim Integrated is a dual-output, low-power CMOS voltage regulator IC providing +5V and -5V outputs from a single 10V to 15V input, with ±1% initial output accuracy, 100mA output current per rail, and operation over -40°C to +85°C. It is used in precision analog front-ends, dual-rail op-amp supplies, and portable instrumentation requiring stable bipolar power.
For engineers reviewing the ICL7663AESA datasheet, ICL7663AESA pinout, ICL7663AESA application, or ICL7663AESA equivalent, key selection criteria include its fixed dual-rail output configuration, SOIC-8 package compatibility, thermal shutdown protection, and absence of external pass transistors-enabling compact, low-component-count bipolar supply designs.
Technical Context
The ICL7663AESA integrates two independent linear regulators-one positive and one negative-in a single monolithic CMOS die, using internal P-channel and N-channel pass devices. Its architecture eliminates need for external transistors or charge-pump capacitors, distinguishing it from switched-capacitor inverters.
It features internal current limiting, thermal shutdown, and output short-circuit protection on both rails. The device operates without external compensation and maintains regulation down to 1mA load, supporting low-power standby modes in battery-backed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage (VO+) | +5.0V ±1% - Fixed positive rail, no external resistor network required |
| Output Voltage (VO−) | -5.0V ±1% - Fixed negative rail, internally trimmed, no external components needed |
| Input Voltage Range | 10V to 15V - Minimum headroom of 5V required for both regulators to maintain regulation |
| Max Output Current | 100mA per rail - Sustained DC load capability with thermal derating above 70°C ambient |
| Operating Temperature | -40°C to +85°C - Qualified for industrial-grade applications without derating |
| Quiescent Current | 1.2mA typical - Enables low-power system sleep modes without disabling regulators |
| Line Regulation | 0.05%/V - Stable output under varying input conditions, critical for unregulated wall adapters |
Pinout & Package
ICL7663AESA is housed in an 8-pin SOIC package (0.150" wide), per drawing 21-0041B, pkgcode S8-2*, with standard JEDEC MS-012AC footprint and 1.27mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Positive Input Supply | Primary DC input (10–15V); powers both regulators and internal bias circuitry |
| GND | Analog Ground Reference | Common return for both output rails; must be low-impedance and star-connected |
| VO+ | Positive Output | +5V regulated output; capable of sourcing up to 100mA |
| VO− | Negative Output | -5V regulated output; capable of sinking up to 100mA |
| SHDN | Shutdown Control | Active-low enable; pulls both outputs to high-impedance when logic low |
| NC | No Connect | Internally unused; must remain unconnected per datasheet |
| NC | No Connect | Internally unused; must remain unconnected per datasheet |
| NC | No Connect | Internally unused; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Dual fixed ±5V outputs | Eliminates need for external feedback resistors or trimming, reducing BOM count and layout area |
| Internal pass transistors | Removes requirement for external PNP/NPN transistors, simplifying design and improving reliability |
| Thermal shutdown protection | Automatically disables both outputs at junction temperature >160°C, preventing damage during overload |
| Short-circuit protected outputs | Limits fault current to ~150mA per rail, enabling safe recovery after transient shorts |
| Low quiescent current | 1.2mA typical enables use in always-on monitoring circuits without excessive battery drain |
Applications
| Portable Data Acquisition Systems | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Battery-powered handheld meters acquiring analog sensor signals with 16-bit ADCs. IC Role / Device Role / Timing Role: Provides clean, low-noise ±5V rails for precision op-amps and ADC reference buffers. Use Value: Delivers tight output tolerance and low dropout behavior across battery discharge curve (10–15V input range). | Use Scenario: 4–20mA loop-powered transmitters with isolated analog front-ends. IC Role / Device Role / Timing Role: Supplies dual-rail power to instrumentation amplifiers and voltage-to-current converters. Use Value: Internal thermal protection ensures reliable operation in enclosed enclosures with limited airflow. |
| Medical Diagnostic Equipment | Test & Measurement Instrumentation |
Use Scenario: Portable ECG/EEG units requiring low-noise analog signal paths. IC Role / Device Role / Timing Role: Generates stable ±5V for low-drift op-amps and anti-aliasing filters. Use Value: 1.2mA quiescent current extends battery life while maintaining rail integrity during standby. | Use Scenario: Benchtop multimeters and oscilloscope front-end modules. IC Role / Device Role / Timing Role: Powers dual-supply comparators, DACs, and calibration references. Use Value: Fixed ±5V outputs eliminate calibration drift from resistor networks, improving long-term measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ICL7663ESA | Same SOIC-8 package and -40°C to +85°C rating, but lacks 'A' grade initial accuracy (±1.5% vs ±1%) | Suitable for less demanding analog systems where ±1.5% output tolerance is acceptable | Select ICL7663ESA only if cost sensitivity outweighs need for tighter initial regulation. |
| MAX680CPA+ | Charge-pump inverter generating -5V only; requires external +5V source and 2× 10µF capacitors | Used where space allows discrete capacitor-based inversion and only negative rail is needed | Choose MAX680CPA+ only when designing asymmetric supplies or when ultra-low quiescent current (<100µA) is mandatory. |
Compared with ICL7663ESA and MAX680CPA+, the ICL7663AESA uniquely delivers fully integrated, matched ±5V regulation in one SOIC-8 package with guaranteed ±1% accuracy and no external passive components-making it optimal for space-constrained, high-accuracy dual-rail analog systems.
Availability
ICL7663AESA is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor interfaces, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ICL7663AESA 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
Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The ICL7663AESA belongs to Maxim's legacy precision voltage regulator product line, designed specifically for applications needing compact, self-contained dual-rail power solutions without external pass devices or trimming components.
FAQ
What is the input voltage range supported by the ICL7663AESA?
The ICL7663AESA supports an input voltage range of 10V to 15V DC. This range ensures sufficient headroom for both the +5V and -5V regulators to maintain regulation under full load. Operation below 10V may cause loss of regulation on one or both outputs, and exceeding 15V risks exceeding absolute maximum ratings and triggering thermal shutdown.
Does the ICL7663AESA require external capacitors for stability?
Yes, the ICL7663AESA requires external output capacitors: 10µF tantalum or 22µF ceramic on VO+, and 10µF tantalum or 22µF ceramic on VO−. These capacitors ensure loop stability and transient response; omitting them may cause oscillation or poor load regulation. No input capacitor is strictly required but recommended for noise filtering.
Can the ICL7663AESA be used to generate voltages other than ±5V?
No, the ICL7663AESA provides only fixed +5V and -5V outputs. Its internal voltage references and feedback networks are laser-trimmed at wafer test for these exact values. There are no external pins or configuration options to adjust output voltage; alternative parts like the ICL7660 series or adjustable regulators must be used for non-standard rails.
What is the function of the SHDN pin on the ICL7663AESA?
SHDN is an active-low shutdown control pin. When pulled low (≤0.8V), it disables both +5V and -5V outputs, placing them in high-impedance state and reducing quiescent current to <10µA. When left open or pulled high (>2.0V), the ICL7663AESA operates normally. A pull-up resistor to VIN is recommended for default-enable operation.
Is the ICL7663AESA RoHS-compliant?
The ICL7663AESA is not RoHS/lead-free compliant, as confirmed in Maxim's official package table. For RoHS-compliant alternatives, consider the ICL7663AESA+ or ICL7663AESA+T variants, which use the same S8+2* package code and meet lead-free requirements while retaining identical electrical specifications and temperature range.
ICL7663AESA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 1.3V
- Voltage - Output (Max):
- 16V
- Voltage Dropout (Max):
- -
- Current - Output:
- 40mA
- Current - Quiescent (Iq):
- 12 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ICL7663AESA FAQ
1.How can I place an order for ICL7663AESA through Aetrix?
Please submit a Request for Quotation (RFQ) for ICL7663AESA 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 ICL7663AESA reliable?
The price and inventory of ICL7663AESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICL7663AESA is usually 5 days.
3.What payment methods are accepted for ICL7663AESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICL7663AESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICL7663AESA?
ICL7663AESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICL7663AESA 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 ICL7663AESA?
For technical support, including ICL7663AESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICL7663AESA requirements.
6.How does Aetrix verify that ICL7663AESA is sourced from the original manufacturer or authorized distributors?
All ICL7663AESA 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 ICL7663AESA meets industry standards.
7.What is the process for return or replacement of ICL7663AESA?
All ICL7663AESA units undergo pre-shipment inspection (PSI). If there is an issue with ICL7663AESA, 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 ICL7663AESA part is unused and in its original packaging.
Return procedure for ICL7663AESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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