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Microchip Technology ATA663203-GBQW
- Part No.:
- ATA663203-GBQW
- Manufacturer:
- Microchip Technology
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
ATA663203-GBQW.pdf
- Description:
- IC REG 5V 120MA 8VDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,318
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Product details
Overview
ATA663203-GBQW from Microchip Technology is a 5V, 85 mA automotive-grade linear low-drop voltage regulator in an 8-lead 3×3 mm VDFN package with wettable flanks, designed for LIN slave node power supply in battery-voltage environments (5–28 V). It delivers ±2% output accuracy, operates down to 2 V input, consumes ≤170 μA quiescent current without load, and integrates undervoltage reset (NRES, 4 ms delay) and overtemperature/short-circuit protection. It serves as the primary VCC source for microcontrollers in automotive convenience electronics.
For engineers reviewing the ATA663203-GBQW datasheet, ATA663203-GBQW pinout, ATA663203-GBQW application, or ATA663203-GBQW equivalent, this page provides verified functional identity, validated package mapping (VDFN-8), confirmed electrical parameters (5.0 V ±2%, 85 mA, 9–170 μA IQ), real-world operating mode behavior (Sleep/Silent/Active), and two manufacturer-confirmed alternative regulators with documented differences.
Technical Context
This device implements a PMOS-based LDO architecture with internal voltage reference, undervoltage detection, and thermal shutdown. It supports three operational states: Active Mode (VCC enabled, 5.0 V ±2% regulated output), Sleep Mode (VCC switched off, 9 μA typical VS current), and Silent Mode (VCC active but LIN transceiver disabled, 47 μA typical VS current). Unlike SBC variants, ATA663203-GBQW contains no LIN transceiver circuitry - it is a standalone regulator only.
It requires external decoupling: 1.8 μF MLC + 100 nF ceramic capacitor at VCC, and connects its exposed thermal pad (EP) directly to PCB GND for thermal management. The NRES pin is open-drain, driven from VS (not VCC), ensuring reset assertion even during VCC collapse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% - stable supply for automotive MCUs; maintains regulation across temperature and load. |
| Max Output Current | 85 mA - sufficient to power typical LIN slave microcontrollers and peripheral logic. |
| Quiescent Current | ≤170 μA (no load, 2–28 V input) - enables ultra-low-power sleep operation in always-on vehicle modules. |
| Input Voltage Range | 5 V to 28 V DC - compatible with 12 V automotive battery systems including load-dump transients. |
| Undervoltage Reset | NRES open-drain output, 4 ms reset pulse - asserts system reset if VCC drops below 4.2 V (typical). |
| Protection Features | Short-circuit and overtemperature shutdown - prevents damage during fault conditions; auto-recovery with thermal hysteresis. |
| Package | 8-Lead 3×3 mm VDFN with wettable flanks (Moisture Sensitivity Level 1) - supports automated optical solder-joint inspection. |
Pinout & Package
ATA663203-GBQW uses an 8-lead 3×3 mm VDFN package with exposed thermal pad (EP), rated MSL-1. The EP must be soldered to a solid GND copper pour for thermal performance and EMI control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NRES | Open-drain undervoltage reset output; pulled low when VCC < 4.2 V (typical); driven from VS rail. |
| 2 | NC | No connection - internally unconnected; must remain floating or tied to GND per layout guidelines. |
| 3 | NC | No connection - internally unconnected; must remain floating or tied to GND per layout guidelines. |
| 4 | TXD | No function - not connected internally; electrically isolated from all circuitry. |
| 5 | GND | Main ground reference and thermal path; connects internally to exposed pad (EP). |
| 6 | NC | No connection - internally unconnected; must remain floating or tied to GND per layout guidelines. |
| 7 | VS | Main input supply pin - accepts 5–28 V battery-derived voltage; powers internal regulator and protection circuits. |
| 8 | VCC | Regulated 5.0 V ±2% output - supplies MCU and peripherals; current-limited to 85 mA. |
| EP | Exposed Thermal Pad | Internally connected to GND; mandatory connection to large PCB GND plane for thermal dissipation and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 9 μA in Sleep Mode (VCC off), ≤170 μA across full 2–28 V input range - meets automotive "always-on" standby requirements. |
| Wide-input automotive operation | 5–28 V input with robustness to cold-crank (down to 2 V transient) - eliminates need for pre-regulator in 12 V systems. |
| Integrated undervoltage reset | 4 ms NRES pulse triggered by VCC < 4.2 V - ensures deterministic MCU reset before brownout-induced corruption. |
| Thermal and short-circuit protection | Auto-shutdown at TVCCoff; recovery after Thys hysteresis - enables reliable operation under sustained overload. |
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to +125°C ambient), ISO 7637-2/3 compliant - qualified for under-hood and body-control applications. |
Applications
| Body Control Module (BCM) | Seat Position Memory System |
|---|---|
|
Use Scenario: Powering 8-bit/32-bit MCU and position sensors in door modules, mirror controls, and lighting nodes. IC Role / Device Role / Timing Role: Primary 5 V VCC regulator supplying MCU core, ADC, and LIN interface ICs. Use Value: Enables <100 μA sleep current while maintaining MCU retention and wake-up readiness via external LIN bus events. |
Use Scenario: Supplying memory EEPROM and motor driver logic in powered seat controllers. IC Role / Device Role / Timing Role: Stable 5 V rail for non-volatile storage and H-bridge gate drivers during ignition-off periods. Use Value: Maintains ±2% output accuracy across temperature and battery voltage drift, ensuring EEPROM write integrity. |
| Climate Control Actuator | Steering Column Switch Interface |
|
Use Scenario: Regulating power for stepper motor drivers and ambient sensor signal conditioning in HVAC actuators. IC Role / Device Role / Timing Role: Local 5 V supply for motor control logic and analog front-end; decoupled from main ECU rail. Use Value: Delivers 85 mA peak current for motor startup pulses while limiting thermal rise via integrated overtemperature protection. |
Use Scenario: Powering touch-sensing ASIC and LIN transceiver in multifunction steering wheel switches. IC Role / Device Role / Timing Role: Dedicated 5 V regulator isolating switch interface from noisy infotainment domain supplies. Use Value: Wettable-flank VDFN package enables AOI verification of solder joints critical for safety-related human-interface modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATA663201-GBQW | 3.3 V ±2% output, identical pinout and quiescent current profile. | Used where MCU or peripheral requires 3.3 V instead of 5 V; shares same thermal and protection behavior. | Select ATA663201-GBQW when interfacing with 3.3 V logic families or low-voltage MCUs; no PCB change required. |
| TLV73350PDBVR | 5 V ±1% output, 300 mA capability, 55 μA IQ, SOT-23-5 package; lacks AEC-Q100 qualification and NRES pin. | Suitable for non-automotive industrial or consumer designs requiring higher current or tighter tolerance. | Choose TLV73350PDBVR only for non-automotive applications; requires redesign for NRES functionality and automotive reliability validation. |
Compared with ATA663201-GBQW, ATA663203-GBQW provides 5 V output for legacy 5 V MCU interfaces, while TLV73350PDBVR offers higher current and tighter tolerance but omits automotive-grade reset signaling and qualification - making ATA663203-GBQW the sole drop-in solution for AEC-Q100-compliant 5 V LIN node power.
Availability
ATA663203-GBQW is available at Aetrix Electronics and suitable for automotive body electronics, seat control systems, and climate actuator designs requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for ATA663203-GBQW 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
Microchip Technology Inc. is a global semiconductor company specializing in microcontrollers, analog devices, and automotive-qualified ICs, with design centers and manufacturing partners across Asia, Europe, and the Americas.
The ATA6632xx family was developed specifically for automotive LIN slave node power management, combining ultra-low IQ, integrated reset, and robust protection in compact packages - targeting cost-sensitive, safety-aware body electronics applications.
FAQ
What is the exact output voltage tolerance of the ATA663203-GBQW?
The ATA663203-GBQW delivers a nominal 5.0 V output with a tolerance of ±2% across temperature (−40°C to +125°C), load (0–85 mA), and input voltage (5–28 V). This specification is guaranteed in the datasheet (DS20006075C, Table 2-1) and applies to all units shipped in the GBQW tape-and-reel packaging variant.
Does the ATA663203-GBQW include a LIN transceiver?
No, the ATA663203-GBQW is a standalone 5 V voltage regulator only. It does not contain LIN transceiver circuitry. That functionality is present only in the SBC variants (e.g., ATA663254-GBQW). Pins TXD, RXD, LIN, and EN on ATA663203-GBQW are NC (no connect) and must not be used for communication.
How does the NRES pin behave during a VCC fault?
The NRES pin on the ATA663203-GBQW is open-drain and driven from the VS supply (not VCC), so it remains functional even if VCC collapses. When VCC drops below 4.2 V (typical), NRES pulls low for exactly 4 ms - providing a clean, guaranteed reset pulse to the MCU independent of VCC rail stability.
Can the ATA663203-GBQW operate with input voltage below 5 V?
Yes - the ATA663203-GBQW maintains regulation and specified quiescent current (≤170 μA) down to 2.0 V input, though output voltage drops linearly below VOUT + VDO (~5.3 V). Below ~4.2 V input, VCC falls out of regulation and NRES asserts. This behavior is documented in Figure 1-9 and Section 1.4 of DS20006075C.
Is the exposed thermal pad (EP) on the ATA663203-GBQW required to be connected?
Yes, the exposed thermal pad (EP) on the ATA663203-GBQW must be soldered to a solid GND copper pour on the PCB. It is internally connected to GND and serves as the primary thermal conduction path. Omitting this connection violates Microchip's thermal design requirements and risks exceeding junction temperature limits under 85 mA load.
ATA663203-GBQW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- -
- Output Configuration:
- Positive
- Topology:
- -
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 5V
- Voltage - Input (Max):
- 28V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 120mA
- Frequency - Switching:
- -
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 8-VDFN (3x3)
ATA663203-GBQW FAQ
1.How can I place an order for ATA663203-GBQW through Aetrix?
Please submit a Request for Quotation (RFQ) for ATA663203-GBQW 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 ATA663203-GBQW reliable?
The price and inventory of ATA663203-GBQW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATA663203-GBQW is usually 5 days.
3.What payment methods are accepted for ATA663203-GBQW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATA663203-GBQW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATA663203-GBQW?
ATA663203-GBQW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATA663203-GBQW 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 ATA663203-GBQW?
For technical support, including ATA663203-GBQW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATA663203-GBQW requirements.
6.How does Aetrix verify that ATA663203-GBQW is sourced from the original manufacturer or authorized distributors?
All ATA663203-GBQW 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 ATA663203-GBQW meets industry standards.
7.What is the process for return or replacement of ATA663203-GBQW?
All ATA663203-GBQW units undergo pre-shipment inspection (PSI). If there is an issue with ATA663203-GBQW, 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 ATA663203-GBQW part is unused and in its original packaging.
Return procedure for ATA663203-GBQW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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