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Skyworks Solutions Inc. AAT1160IRN-0.6-T1
- Part No.:
- AAT1160IRN-0.6-T1
- Manufacturer:
- Skyworks Solutions Inc.
- Package:
- -
- Datasheet:
-
AAT1160IRN-0.6-T1.pdf
- Description:
- IC REG CONV 12V 3A 16TDFN
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Product details
Overview
AAT1160IRN-0.6-T1 from Skyworks Solutions is a 800 kHz synchronous step-down DC/DC converter delivering up to 3 A at output voltages as low as 0.6 V, with input voltage range 4.0–13.2 V and integrated P-channel/N-channel power switches. It operates in PWM or light-load mode, features soft-start, over-temperature shutdown (140°C), and short-circuit protection via cycle-by-cycle current limiting - deployed in portable media players, TFT LCD monitors, and industrial 12V-powered systems.
For engineers reviewing the AAT1160IRN-0.6-T1 datasheet, AAT1160IRN-0.6-T1 pinout, AAT1160IRN-0.6-T1 application, or AAT1160IRN-0.6-T1 equivalent, key selection considerations include its fixed 0.6 V output version, TDFN34-16 thermally enhanced package, 96% peak efficiency, <1 μA shutdown current, and SYNC-controlled mode selection between forced PWM and PWM/Light Load operation.
Technical Context
The AAT1160IRN-0.6-T1 implements constant-frequency current-mode control with internal slope compensation, enabling stable operation at duty cycles >50% and fast transient response. Its dual MOSFET power stage integrates a 0.12 Ω P-channel high-side switch and 0.06 Ω N-channel synchronous rectifier at VIN = 12 V, supporting up to 3 A continuous load with cycle-by-cycle current limiting (6.0 A threshold) and frequency foldback during overload.
It supports external synchronization (500 kHz–1.6 MHz) and offers selectable operating modes via the SYNC pin: logic-high enables forced PWM for predictable noise spectrum and faster transients; logic-low activates PWM/Light Load mode for improved efficiency below ~300 mA. The feedback reference is fixed at 0.6 V, eliminating external resistor divider requirements for this variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.0 V to 13.2 V - supports dual-cell Li-ion batteries and regulated 12 V industrial rails without external pre-regulation. |
| Output Voltage | Fixed 0.6 V - eliminates need for external feedback resistors; optimized for point-of-load regulation of core logic or FPGA I/O rails. |
| Max Output Current | 3 A continuous - sustained delivery enabled by integrated low-RDS(ON) MOSFETs and thermally enhanced TDFN34-16 package. |
| Switching Frequency | 800 kHz nominal, synchronizable 500 kHz–1.6 MHz - allows EMI filtering coordination and use of compact 2.2–3.8 µH inductors. |
| Efficiency | Up to 96% - achieved via synchronous rectification, low quiescent current (150 µA no-load), and adaptive light-load mode. |
| Shutdown Current | <1 µA - disconnects load from VIN, enabling ultra-low-power system sleep states. |
| Protection Features | Over-temperature shutdown (140°C, 25°C hysteresis), short-circuit foldback, and cycle-by-cycle current limit - ensures robustness under fault conditions without external circuitry. |
Pinout & Package
TDFN34-16 (3.4 mm × 3.4 mm, 0.75 mm height) with dual exposed thermal pads (EP1 and EP2) for enhanced thermal dissipation. Package rated for -40°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX (Pins 1, 2, EP2) | Power switching node | Drain of internal P-MOSFET and source of N-MOSFET; connects directly to inductor; EP2 must be soldered to large copper pour for thermal conduction. |
| IN (Pins 4, 5) | Main power input | Accepts 4.0–13.2 V; requires local 10 µF + 100 nF ceramic bypass to DGND; both pins must be shorted near IC. |
| DGND (Pins 6, 13, EP1) | Digital ground / thermal pad | Primary ground return for digital logic and power switches; EP1 must be connected to PCB ground plane for thermal and electrical integrity. |
| AIN (Pin 7) | Analog bias supply | Internal analog circuitry power rail; connect to IN through ≤10 Ω resistor and bypass to AGND with ≥0.1 µF capacitor for noise rejection. |
| LDO (Pin 8) | Internal LDO output | Bypass node for internal 3.3 V LDO; powers internal circuitry; do not draw external current; bypass to AGND with ≥1 µF capacitor. |
| FB (Pin 9) | Feedback input | Fixed 0.6 V reference - internally tied to error amplifier; no external divider required for AAT1160IRN-0.6-T1 variant. |
| COMP (Pin 10) | Loop compensation | Connect series RC network (R = 50 kΩ, C = 150 pF) to AGND to stabilize current-mode control loop. |
| AGND (Pin 11) | Analog ground | Reference for FB, COMP, and internal analog blocks; tie to PGND/DGND at single point near IC to avoid noise coupling. |
| SYNC (Pin 14) | Mode select / sync input | Drive high or to LDO for forced PWM; drive low for PWM/Light Load; apply 500 kHz–1.6 MHz clock for synchronization. |
| EN (Pin 15) | Enable control | Active-high logic input; must be driven or biased (e.g., 4.7 kΩ to IN); floating EN causes undefined behavior. |
| PGND (Pin 16) | Power ground | High-current return path for LX switching node; connect to AGND/DGND at single point near IC to minimize ground bounce. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous buck topology | Integrated 0.12 Ω P-MOSFET and 0.06 Ω N-MOSFET eliminate external diode, reducing conduction loss and improving efficiency above 500 mA. |
| Adaptive light-load operation | Automatically transitions from fixed-frequency PWM to variable-frequency light-load mode below ~300 mA, cutting no-load current to 150 µA. |
| Thermal and fault protection | 140°C junction shutdown with 25°C hysteresis and cycle-by-cycle current limiting (6.0 A) prevent damage during overloads or shorts. |
| Flexible mode control | SYNC pin selects forced PWM (low noise, fast transient) or PWM/Light Load (high efficiency) - no external components needed. |
| Compact thermally optimized package | TDFN34-16 with dual exposed pads (EP1/EP2) achieves 37°C/W θJA, enabling 3 A operation on standard FR4 without heatsinks. |
Applications
| Portable Media Players | TFT LCD Monitors |
|---|---|
Use Scenario: Powering ARM-based application processors and DDR memory in handheld video playback devices with dual-cell Li-ion battery input (7.2–8.4 V). IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering stable 0.6 V core voltage with fast transient response to CPU burst loads. Use Value: Enables >90% efficiency across 10 mA–3 A load range and <1 µA shutdown current to extend battery runtime between charges. |
Use Scenario: Supplying gate driver and timing controller ICs in 12 V-powered TFT-LCD panels for commercial signage and industrial HMIs. IC Role / Device Role / Timing Role: Secondary buck converter generating precise 0.6 V bias for display timing ICs requiring tight voltage tolerance and low noise. Use Value: Fixed 0.6 V output eliminates resistor tolerance errors; SYNC-synchronized operation avoids beat frequencies with display pixel clocks. |
| Industrial 12V Systems | Laptop Subsystems |
Use Scenario: Regulating auxiliary 0.6 V rails for FPGAs or ASICs in programmable logic controllers powered from 12 V industrial bus. IC Role / Device Role / Timing Role: High-reliability DC/DC converter with over-temperature and short-circuit protection for harsh environments. Use Value: 140°C thermal shutdown and 6.0 A current limit ensure safe operation during field faults without external protection circuitry. |
Use Scenario: Providing core voltage to embedded controller or secure boot IC in ultrabook platforms where space and thermal budget are constrained. IC Role / Device Role / Timing Role: Compact, low-profile buck converter mounted near processor die for minimal trace inductance and optimal PSRR. Use Value: TDFN34-16 footprint (3.4 × 3.4 mm) saves PCB area; EP1/EP2 thermal pads enable 3 A delivery without thermal vias or heatsinks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down DC/DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54331DR | 3 A, 5.5–36 V input, adjustable output (0.8–28 V), 570 kHz fixed frequency, no SYNC input, higher minimum input voltage. | Requires external feedback resistors; lacks light-load mode optimization and SYNC flexibility; better suited for higher-input industrial rails. | Select when input exceeds 13.2 V or adjustable output is required; avoid for battery-powered designs needing <1 µA shutdown. |
| MP2332HGTL-Z | 3 A, 4.5–21 V input, fixed 0.6 V option, 1.1 MHz switching, no SYNC, 2.5 µA quiescent current, smaller QFN-10 package. | Higher IQ reduces light-load efficiency; no mode selection or external sync; lower thermal performance due to smaller package and no dual EP pads. | Choose for cost-sensitive, space-constrained designs where 800 kHz sync and ultra-low shutdown current are noncritical. |
Compared with TPS54331DR and MP2332HGTL-Z, the AAT1160IRN-0.6-T1 uniquely combines fixed 0.6 V output, sub-1 µA shutdown, SYNC-enabled mode control, and dual-exposed-pad thermal design - making it optimal for battery life-critical, noise-sensitive, and thermally demanding 4–13.2 V applications.
Availability
AAT1160IRN-0.6-T1 is available at Aetrix Electronics and suitable for portable media players, TFT LCD monitors, and industrial 12V systems requiring stable component supply, long-term lifecycle support, and guaranteed Pb-free compliance.
Supply support for AAT1160IRN-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 for wireless, automotive, and industrial markets.
The AAT1160IRN-0.6-T1 belongs to Skyworks' high-efficiency DC/DC converter product line, engineered for compact, thermally robust power delivery in battery-powered and mid-power industrial equipment.
FAQ
What is the output voltage configuration of the AAT1160IRN-0.6-T1?
The AAT1160IRN-0.6-T1 is a fixed-output variant with a factory-trimmed 0.6 V feedback reference. Unlike adjustable versions, it does not require external resistor dividers - FB is internally connected to the error amplifier at 0.6 V, simplifying layout and eliminating resistor tolerance errors. This makes AAT1160IRN-0.6-T1 ideal for powering low-voltage cores where precision and board space are critical.
How does the SYNC pin function on the AAT1160IRN-0.6-T1?
The SYNC pin on the AAT1160IRN-0.6-T1 serves dual purposes: applying a 500 kHz–1.6 MHz CMOS clock synchronizes switching frequency, while logic-level control selects operating mode - high or connected to LDO enables forced PWM for consistent EMI profile and faster transients; low or grounded activates PWM/Light Load mode for highest efficiency below ~300 mA. No external components are needed for either function.
What thermal performance can be expected from the AAT1160IRN-0.6-T1 in a typical PCB layout?
In a standard 4-layer FR4 board with full EP1/EP2 thermal pad connection to internal ground planes, the AAT1160IRN-0.6-T1 achieves θJA = 37°C/W. At 3 A output with 12 V input and 5 V output, typical junction temperature rise is ~65°C above ambient - well within the -40°C to +85°C operating range. Thermal shutdown triggers only if board-level dissipation exceeds design limits (e.g., insufficient copper area or airflow).
Does the AAT1160IRN-0.6-T1 require external compensation components?
Yes - the AAT1160IRN-0.6-T1 uses external compensation via the COMP pin. A series RC network (typically R = 50 kΩ, C = 150 pF) must be connected from COMP to AGND to stabilize the current-mode control loop. This allows tuning for specific inductor/capacitor combinations and load dynamics, unlike fully integrated compensation schemes that sacrifice flexibility.
What protection features are built into the AAT1160IRN-0.6-T1?
The AAT1160IRN-0.6-T1 integrates cycle-by-cycle current limiting (6.0 A threshold), over-temperature shutdown (140°C with 25°C hysteresis), and short-circuit foldback (frequency reduced 4× when output drops below 25% of regulation). These operate autonomously without external components, ensuring safe operation during startup, overload, or PCB fault conditions - critical for unattended industrial and portable systems.
AAT1160IRN-0.6-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
AAT1160IRN-0.6-T1 FAQ
1.How can I place an order for AAT1160IRN-0.6-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AAT1160IRN-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 AAT1160IRN-0.6-T1 reliable?
The price and inventory of AAT1160IRN-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 AAT1160IRN-0.6-T1 is usually 5 days.
3.What payment methods are accepted for AAT1160IRN-0.6-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AAT1160IRN-0.6-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AAT1160IRN-0.6-T1?
AAT1160IRN-0.6-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AAT1160IRN-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 AAT1160IRN-0.6-T1?
For technical support, including AAT1160IRN-0.6-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AAT1160IRN-0.6-T1 requirements.
6.How does Aetrix verify that AAT1160IRN-0.6-T1 is sourced from the original manufacturer or authorized distributors?
All AAT1160IRN-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 AAT1160IRN-0.6-T1 meets industry standards.
7.What is the process for return or replacement of AAT1160IRN-0.6-T1?
All AAT1160IRN-0.6-T1 units undergo pre-shipment inspection (PSI). If there is an issue with AAT1160IRN-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 AAT1160IRN-0.6-T1 part is unused and in its original packaging.
Return procedure for AAT1160IRN-0.6-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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