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Skyworks Solutions Inc. AAT3223IGU-3.3-T1
- Part No.:
- AAT3223IGU-3.3-T1
- Manufacturer:
- Skyworks Solutions Inc.
- Package:
- SOT-23-6
- Datasheet:
-
AAT3223IGU-3.3-T1.pdf
- Description:
- IC REG LINEAR 3.3V 250MA SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,333
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Product details
Overview
AAT3223IGU-3.3-T1 from Skyworks Solutions is a 250mA, 3.3V fixed-output NanoPower LDO linear regulator with Power-OK (POK) monitoring and active-high enable control. It delivers ±2% output accuracy, 190mV typical dropout at 100mA, and ultra-low 1.1µA quiescent current-enabling extended battery life in portable power management systems such as digital cameras and handheld electronics.
For engineers reviewing the AAT3223IGU-3.3-T1 datasheet, AAT3223IGU-3.3-T1 pinout, AAT3223IGU-3.3-T1 application, or AAT3223IGU-3.3-T1 equivalent, key selection criteria include its factory-programmed 3.3V output, integrated over-temperature and short-circuit protection, POK trip threshold at 87.5–93.5% VOUT, and SOT23-6 package compatibility with low-ESR ceramic capacitors.
Technical Context
The AAT3223IGU-3.3-T1 implements a CMOS-based error amplifier architecture with internal 91% voltage reference and 1ms POK delay circuitry to suppress false triggering during transients. Its enable input accepts logic-level signals (VIH ≥ 2.0V, VIL ≤ 0.5V), while the open-drain POK output requires a 100kΩ pull-up to VOUT and asserts low when output falls below regulation threshold.
Thermal shutdown activates at 140°C with 20°C hysteresis, and current limiting engages at 300–450mA. The device operates across –40°C to +85°C ambient, supports stable regulation with ≥0.47µF ceramic output capacitance, and maintains no-load stability without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±2% - factory-trimmed, no external resistors required. |
| Max Output Current | 250mA continuous - limited by thermal dissipation (667mW at 25°C). |
| Dropout Voltage | 180–220mV at 100mA - enables operation with VIN as low as 3.48V for regulated 3.3V output. |
| Quiescent Current | 1.1µA typical - preserves battery runtime in always-on or sleep-mode subsystems. |
| POK Threshold | 87.5–93.5% of VOUT - provides reliable undervoltage detection with 1.5ms delay and 1.5% hysteresis. |
| Enable Logic | Active-high, CMOS-compatible - VIH ≥ 2.0V, VIL ≤ 0.5V, leakage <1µA. |
| Protection Features | Short-circuit, over-current, and over-temperature (140°C trip) - self-recovering after fault removal. |
Pinout & Package
Package: Pb-free 6-pin SOT23-6 (2.9mm × 1.6mm × 1.1mm), rated for –40°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: IN | Input supply connection | Accepts 2.5V to 5.5V; bypass with ≥1µF capacitor near pin for line transient suppression. |
| 2: GND | Ground reference | Common return path for IN, OUT, EN, and POK; must be low-impedance PCB plane. |
| 3: OUT | Regulated output | Delivers 3.3V ±2%; requires ≥1µF ceramic capacitor directly to GND for stability. |
| 4: N/C | No connect | Internally unconnected; leave floating or unpopulated on PCB. |
| 5: EN | Enable control input | Active-high logic; drives LDO into <1µA shutdown when pulled low. |
| 6: POK | Power-OK open-drain flag | Asserts low when VOUT drops below threshold; requires 100kΩ pull-up to OUT. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 1.1µA typical - extends shelf life and runtime in battery-backed systems. |
| Integrated Power-OK monitoring | Factory-calibrated 87.5–93.5% VOUT threshold with 1ms delay - eliminates need for external supervisor IC. |
| Stable with low-ESR ceramics | Operates reliably with ≥0.47µF X7R/X5R ceramic capacitors - reduces BOM cost and board area. |
| Robust protection suite | Current limit (300–450mA), thermal shutdown (140°C), and 4kV ESD HBM - ensures field reliability in portable environments. |
| High PSRR performance | 50dB at 100Hz - suppresses noise from noisy switchers or shared input rails. |
Applications
| Cellular Phone Power Rail | Digital Camera Sensor Bias |
|---|---|
|
Use Scenario: Supplies clean 3.3V bias to baseband processor I/O and memory interfaces during deep-sleep mode. IC Role / Device Role: Primary low-noise, low-quiescent LDO for always-on subsystems with POK-driven wake-up signaling. Use Value: 1.1µA IQ enables >1-year shelf life; POK alerts host MCU of brownout before data corruption occurs. |
Use Scenario: Powers image sensor analog front-end requiring tight voltage tolerance and fast load transient response. IC Role / Device Role: Precision 3.3V LDO with <220mV dropout and 1.5ms POK delay to avoid false resets during exposure bursts. Use Value: ±2% accuracy and 50dB PSRR maintain SNR; 250mA rating supports peak sensor current without droop. |
| Notebook Computer SSD Interface | Remote Control Microcontroller Core |
|
Use Scenario: Provides regulated 3.3V to SATA/PCIe SSD controller logic during burst read/write operations. IC Role / Device Role: High-current LDO with thermal foldback and short-circuit protection for storage subsystems. Use Value: 250mA capability handles 100mA–200mA load steps; over-temperature shutdown prevents damage during enclosure overheating. |
Use Scenario: Powers 32-bit ARM Cortex-M0+ MCU core in infrared remote with coin-cell battery. IC Role / Device Role: NanoPower LDO enabling sub-µA sleep current and deterministic wake-up via POK-integrated reset chain. Use Value: Shutdown IQ <10nA (via EN) and POK-driven POR eliminate external reset IC and reduce component count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-3302E/MB | 3.3V fixed, 250mA, 2µA IQ, no POK output, SOT23-5 package | Lacks Power-OK monitoring and uses one fewer pin; requires external supervisor for brownout detection | Select when POK is unnecessary and board space favors 5-pin footprint |
| Torex XC6206P332MR-G | 3.3V fixed, 250mA, 1µA IQ, no enable or POK, SOT23-5 | Pin-compatible but functionally minimal - no control or status pins; only basic regulation | Choose for ultra-low-cost, single-rail applications where enable/POK are omitted from system design |
Compared with MCP1703T-3302E/MB and XC6206P332MR-G, the AAT3223IGU-3.3-T1 uniquely integrates both enable and Power-OK in a 6-pin SOT23, delivering system-level supervision without additional ICs-critical for space-constrained, battery-sensitive designs requiring deterministic power sequencing and fault reporting.
Availability
AAT3223IGU-3.3-T1 is available at Aetrix Electronics and suitable for cellular phones, digital cameras, and notebook computers requiring stable component supply, long-term lifecycle support, and guaranteed Pb-free compliance.
Supply support for AAT3223IGU-3.3-T1 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
Skyworks Solutions is a global semiconductor company specializing in analog and mixed-signal connectivity solutions for wireless, automotive, and industrial markets.
The AAT3223IGU-3.3-T1 belongs to Skyworks' PowerLinear NanoPower LDO family, engineered for ultra-low-power portable electronics where extended battery life, small footprint, and integrated supervision functions are essential.
FAQ
What is the maximum input voltage for AAT3223IGU-3.3-T1 under normal operating conditions?
The AAT3223IGU-3.3-T1 supports an input voltage range of (VOUT + VDO) to 5.5V per recommended operating conditions. With a 3.3V output and typical dropout of 180–220mV, the minimum functional VIN is ~3.48V. The absolute maximum VIN is 6.0V, but continuous operation above 5.5V is not recommended due to thermal and reliability constraints. At 25°C ambient, thermal limits allow up to 7.45V for 150mA loads-but 5.5V remains the specified operational ceiling.
Does AAT3223IGU-3.3-T1 require an external pull-up resistor on the POK pin?
Yes, the AAT3223IGU-3.3-T1 POK pin is open-drain and requires an external pull-up resistor to VOUT. The datasheet specifies 100kΩ as the recommended value. Without this resistor, the POK signal cannot assert high when the output is in regulation, rendering the Power-OK function nonoperational. The pull-up also discharges the output during shutdown, providing a hard turn-off behavior.
Can AAT3223IGU-3.3-T1 operate stably with a 0.47µF ceramic output capacitor?
Yes, the AAT3223IGU-3.3-T1 is explicitly designed to remain stable with output capacitance as low as 0.47µF, provided it is a low-ESR ceramic capacitor (X7R or X5R dielectric). While 1µF is recommended for most applications, 0.47µF meets the minimum stability requirement across –40°C to +85°C and supports compact layout in space-constrained designs like remote controls or wearables.
How does the enable function behave during power-up for AAT3223IGU-3.3-T1?
The AAT3223IGU-3.3-T1 enable pin is active-high and CMOS-compatible. During power-up, the LDO remains off until EN rises above 2.0V (VIH threshold). If EN is tied to VIN, turn-on follows input ramp with typical 1ms delay to full regulation. If EN is controlled by a microcontroller GPIO, ensure the pin is driven high only after VCC stabilizes to prevent erratic startup. Pull-down resistors on EN are not required but may be used for default-off safety.
What protection mechanisms are built into AAT3223IGU-3.3-T1?
The AAT3223IGU-3.3-T1 integrates three independent protection circuits: (1) current-limit protection activating at 300–450mA to prevent excessive output current, (2) over-temperature shutdown at 140°C with 20°C hysteresis to guard against thermal runaway, and (3) input overvoltage clamp (absolute max VIN = 6.0V). All protections are fully internal, self-resetting, and require no external components-ensuring robust operation in consumer-grade portable devices.
AAT3223IGU-3.3-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- NanoPower™
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.22V @ 100mA
- Current - Output:
- 250mA
- Current - Quiescent (Iq):
- 2.5 µA
- Current - Supply (Max):
- -
- PSRR:
- 50dB (100Hz)
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
AAT3223IGU-3.3-T1 FAQ
1.How can I place an order for AAT3223IGU-3.3-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AAT3223IGU-3.3-T1 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 AAT3223IGU-3.3-T1 reliable?
The price and inventory of AAT3223IGU-3.3-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AAT3223IGU-3.3-T1 is usually 5 days.
3.What payment methods are accepted for AAT3223IGU-3.3-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AAT3223IGU-3.3-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AAT3223IGU-3.3-T1?
AAT3223IGU-3.3-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AAT3223IGU-3.3-T1 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 AAT3223IGU-3.3-T1?
For technical support, including AAT3223IGU-3.3-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AAT3223IGU-3.3-T1 requirements.
6.How does Aetrix verify that AAT3223IGU-3.3-T1 is sourced from the original manufacturer or authorized distributors?
All AAT3223IGU-3.3-T1 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 AAT3223IGU-3.3-T1 meets industry standards.
7.What is the process for return or replacement of AAT3223IGU-3.3-T1?
All AAT3223IGU-3.3-T1 units undergo pre-shipment inspection (PSI). If there is an issue with AAT3223IGU-3.3-T1, 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 AAT3223IGU-3.3-T1 part is unused and in its original packaging.
Return procedure for AAT3223IGU-3.3-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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