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Skyworks Solutions Inc. AAT1153IDE-0.6-T1
- Part No.:
- AAT1153IDE-0.6-T1
- Manufacturer:
- Skyworks Solutions Inc.
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
AAT1153IDE-0.6-T1.pdf
- Description:
- IC REG BUCK ADJ 2A 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,903
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Product details
Overview
AAT1153IDE-0.6-T1 from Skyworks Solutions is a 2 A, 1.2 MHz synchronous step-down DC-DC converter with adjustable 0.6 V to VIN output, 2.5–5.5 V input range, and integrated P/N-channel MOSFETs (RDS(ON) = 135 mΩ / 95 mΩ at 3.6 V). It delivers high efficiency up to 95% in portable power applications such as smartphone core supplies and DSP voltage rails.
For engineers reviewing the AAT1153IDE-0.6-T1 datasheet, AAT1153IDE-0.6-T1 pinout, AAT1153IDE-0.6-T1 application, or AAT1153IDE-0.6-T1 equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternatives, and supply support for production deployment.
Technical Context
The AAT1153IDE-0.6-T1 uses slope-compensated peak current mode PWM control with fixed 1.2 MHz switching frequency, enabling stable operation with inductors as low as 1 µH. Its internal error amplifier references a precise 0.6 V feedback threshold (±1.5% over −40 °C to +85 °C) and supports 100% duty cycle for low-dropout operation.
It integrates dual MOSFETs - a P-channel high-side switch and N-channel synchronous rectifier - with thermal shutdown (170 °C, 10 °C hysteresis), short-circuit protection, and soft-start (1.3 ms startup time). The device operates across −40 °C to +85 °C in a TDFN-10 (3 × 3 mm) package with exposed thermal pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | 2 A continuous - supports high-current DSP cores and application processors without external current boosting. |
| Switching frequency | 1.2 MHz (±20%) - enables compact 2.2 µH inductors and 22 µF ceramic capacitors, minimizing board area. |
| Feedback reference | 0.600 V ±1.5% - sets accurate output voltage via external resistor divider; enables 1.2 V, 1.5 V, 1.8 V, or other low-voltage rails. |
| Input voltage range | 2.5 V to 5.5 V - compatible with single-cell Li-ion (2.7–4.2 V), Li-polymer, and USB-powered systems. |
| Efficiency | Up to 95% at 2 A - reduces thermal load in space-constrained handheld devices; measured at VIN = 3.6 V, VOUT = 1.8 V. |
| Shutdown current | <1 µA - extends battery life during system sleep modes; enabled by active-high EN pin with 0.3 V/1.5 V thresholds. |
| Thermal protection | 170 °C shutdown with 10 °C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking. |
Pinout & Package
TDFN-10 (3 × 3 mm, 0.75 mm height), MSL1, with exposed thermal pad (EP) tied to PGND. Package optimized for thermal dissipation (θJA = 45 °C/W) and high-density portable layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Enable control | Active-high logic input; <1 µA shutdown current when pulled low; must not float. |
| 2 (IN) | Main power input | 2.5–5.5 V supply; requires local 2.2 µF+ ceramic decoupling to AGND. |
| 3 (AIN) | Analog bias supply | Powers internal reference and error amplifier; decouple separately from IN. |
| 4,6 (AGND) | Analog ground | Reference return for feedback and control circuitry; separate from power ground. |
| 5 (FB/OUT) | Feedback input | Connects to resistor divider midpoint; regulated at 0.6 V; determines output voltage. |
| 7,8 (LX) | Switch node | Drives external inductor; carries high di/dt; requires tight layout to minimize EMI. |
| 9,10 (PGND) | Power ground | High-current return path for MOSFETs and inductor; connects to EP for thermal conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated N-channel MOSFET replaces external Schottky diode - eliminates 0.3–0.5 V forward drop, improving light-load efficiency. |
| Current-mode control | Provides inherent cycle-by-cycle current limiting and fast transient response (<100 µs recovery from 200 mA ↔ 2 A load step). |
| Ceramic capacitor support | Stable with low-ESR X5R/X7R ceramics - avoids bulky tantalum or electrolytic caps, reducing footprint and cost. |
| Low dropout operation | 100% duty cycle capability - maintains regulation as input drops to within ~300 mV of output (e.g., 1.8 V out from 2.1 V in). |
| Soft-start | Internal 1.3 ms ramp - prevents inrush current and output overshoot during power-up or enable assertion. |
Applications
| Smartphone Core Supply | DSP Voltage Rail |
|---|---|
Use Scenario: Powers ARM Cortex-A series application processor cores requiring tightly regulated 1.0–1.2 V at up to 2 A peak current. IC Role / Device Role / Timing Role: Primary buck regulator delivering dynamically scaled core voltage under DVFS control. Use Value: 95% peak efficiency and 0.6 V reference enable precise low-voltage generation with minimal thermal impact in thin form factors. | Use Scenario: Supplies TI C6000 or Analog Devices SHARC DSPs needing stable 1.8 V at 2 A for real-time signal processing. IC Role / Device Role / Timing Role: High-current, low-noise point-of-load converter with fast load transient response. Use Value: Slope-compensated current mode control ensures stability with small inductors while maintaining <±1% DC regulation across load and line variations. |
| Portable Instrument Power | Digital Camera Sensor Bias |
Use Scenario: Powers handheld test equipment (e.g., oscilloscope front-end ASICs) requiring clean 3.3 V from a 3.7 V Li-ion cell. IC Role / Device Role / Timing Role: Main system rail converter with low output ripple (<10 mVpp) and high PSRR at switching frequency. Use Value: 1.2 MHz operation shifts noise above sensitive analog bands; ceramic-capable design minimizes EMI in mixed-signal environments. | Use Scenario: Supplies CMOS image sensor analog front-end requiring ultra-low-noise 2.8 V at 1.5 A during burst capture. IC Role / Device Role / Timing Role: Low-ripple, high-PGND-current buck stage with dedicated AIN/AGND separation. Use Value: Dual ground pins (AGND/PGND) and isolated AIN reduce coupling of switching noise into analog sensor bias paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | Fixed 1.8 V output; 3 MHz switching; 0.65 V feedback reference; 1.8 A max output. | Limited to single-output voltage; higher frequency increases efficiency but demands tighter layout control. | Select when fixed 1.8 V simplifies BOM and 3 MHz allows smaller passives; verify thermal performance at 2 A. |
| RT8059NGQW | Adjustable 0.6–5.5 V output; 1.5 MHz; 2.5 A rating; 0.6 V reference; different pinout (QFN-10). | Higher current headroom and wider VOUT range; lacks AIN pin - shared analog/digital ground. | Choose for designs needing >2 A margin or broader output flexibility; revalidate PCB layout due to non-pin-compatible footprint. |
Compared with TPS62231DRYR and RT8059NGQW, the AAT1153IDE-0.6-T1 offers proven 2 A capability at 1.2 MHz with dedicated AIN/AGND separation for noise-sensitive analog loads - making it optimal for portable systems where thermal density, EMI control, and multi-rail flexibility are critical.
Availability
AAT1153IDE-0.6-T1 is available at Aetrix Electronics and suitable for smartphone core supplies, DSP voltage rails, and portable instrument power requiring stable component supply, full lifecycle traceability, and long-term industrial availability.
Supply support for AAT1153IDE-0.6-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, with leadership in RF, power management, and timing products.
The AAT1153IDE-0.6-T1 belongs to Skyworks' SwitchReg™ family of high-efficiency DC-DC converters designed specifically for battery-powered portable electronics demanding high current, small size, and robust thermal performance.
FAQ
What is the minimum input voltage required for AAT1153IDE-0.6-T1 to deliver 2 A output current?
The AAT1153IDE-0.6-T1 supports 2 A output down to 2.5 V input, but maximum load current decreases below 3.0 V due to increased RDS(ON) and IR losses. At 2.5 V input and 1.2 V output, peak current capability drops to ~1.6 A per datasheet Figure 9 and functional description. For full 2 A performance, ≥2.8 V input is recommended.
Does AAT1153IDE-0.6-T1 require an external feed-forward capacitor for stable operation?
No - the AAT1153IDE-0.6-T1 is stable with only R1/R2 feedback resistors and standard input/output ceramic capacitors. A 22 pF feed-forward capacitor (C3) is optional and improves transient response for pulsed loads (e.g., camera flash), as shown in Figure 1 and Application Information section - but adds no stability requirement.
How is the output voltage set on AAT1153IDE-0.6-T1, and what is the role of the FB/OUT pin?
The AAT1153IDE-0.6-T1 uses resistor divider R1/R2 connected to the FB/OUT pin (Pin 5) to set output voltage per VOUT = 0.6 V × (1 + R1/R2). The FB/OUT pin senses the divider midpoint and regulates it precisely to 0.600 V ±1.5%, enabling outputs from 0.6 V to near VIN. R2 ≥59 kΩ is recommended for noise immunity.
Can AAT1153IDE-0.6-T1 operate in dropout mode, and what happens to efficiency?
Yes - the AAT1153IDE-0.6-T1 supports 100% duty cycle dropout operation when VIN ≤ VOUT + IOUT × (RDS(ON)_P + DCRL). Efficiency declines in dropout due to increased P-channel RDS(ON) (e.g., 200 mΩ at 2.5 V), but regulation is maintained. Thermal design must account for higher junction temperature under sustained dropout.
What is the purpose of the AIN pin on AAT1153IDE-0.6-T1, and how should it be decoupled?
The AIN pin (Pin 3) supplies clean bias to the internal reference and error amplifier. It must be decoupled with a dedicated 1 µF ceramic capacitor to AGND - separate from the main IN decoupling - to prevent switching noise from modulating the feedback reference and causing output ripple or instability.
AAT1153IDE-0.6-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- SwitchReg™
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 2A
- Frequency - Switching:
- 1.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TDFN (3x3)
AAT1153IDE-0.6-T1 FAQ
1.How can I place an order for AAT1153IDE-0.6-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AAT1153IDE-0.6-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 AAT1153IDE-0.6-T1 reliable?
The price and inventory of AAT1153IDE-0.6-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AAT1153IDE-0.6-T1 is usually 5 days.
3.What payment methods are accepted for AAT1153IDE-0.6-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AAT1153IDE-0.6-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AAT1153IDE-0.6-T1?
AAT1153IDE-0.6-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AAT1153IDE-0.6-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 AAT1153IDE-0.6-T1?
For technical support, including AAT1153IDE-0.6-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AAT1153IDE-0.6-T1 requirements.
6.How does Aetrix verify that AAT1153IDE-0.6-T1 is sourced from the original manufacturer or authorized distributors?
All AAT1153IDE-0.6-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 AAT1153IDE-0.6-T1 meets industry standards.
7.What is the process for return or replacement of AAT1153IDE-0.6-T1?
All AAT1153IDE-0.6-T1 units undergo pre-shipment inspection (PSI). If there is an issue with AAT1153IDE-0.6-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 AAT1153IDE-0.6-T1 part is unused and in its original packaging.
Return procedure for AAT1153IDE-0.6-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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