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Skyworks Solutions Inc. AAT2153IVN-0.6-T1
- Part No.:
- AAT2153IVN-0.6-T1
- Manufacturer:
- Skyworks Solutions Inc.
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
AAT2153IVN-0.6-T1.pdf
- Description:
- IC REG BUCK ADJ 2.5A 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,448
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Product details
Overview
AAT2153IVN-0.6-T1 from Skyworks Solutions is a 2.5A monolithic step-down DC/DC converter with 2.7V–5.5V input, 0.6V adjustable output, 1.4MHz fixed switching frequency, and 42μA no-load quiescent current. It integrates ultra-low RDS(ON) P-channel high-side (0.12Ω) and N-channel low-side (0.085Ω) MOSFETs, supports 100% duty cycle for low-dropout operation, and delivers ±0.5% output regulation across load and line - ideal for space-constrained portable power rails in digital cameras and USB devices.
For engineers reviewing the AAT2153IVN-0.6-T1 datasheet, AAT2153IVN-0.6-T1 pinout, AAT2153IVN-0.6-T1 application, or AAT2153IVN-0.6-T1 equivalent, this page provides verified package mapping (QFN33-16), confirmed pin functions (FB, EN, VP, LX, PGND, SGND), real-world efficiency curves (up to 95% at 3.3V out), thermal specs (θJA = 50°C/W), and two validated alternative parts with documented functional differences.
Technical Context
The AAT2153IVN-0.6-T1 employs peak current mode control with fixed slope compensation, enabling stable operation up to >50% duty cycle without external compensation. Its integrated 0.6V reference and feedback amplifier program output voltage via external resistor divider, supporting precise regulation from 0.6V to VIN.
It features dual protection architecture: over-temperature shutdown at 140°C (15°C hysteresis) and cycle-by-cycle current limiting (3.5A typical), with automatic recovery after fault removal. Soft-start (150μs typical) eliminates output overshoot, while UVLO (2.7V rising threshold, 250mV hysteresis) prevents spurious startup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2.5A maximum continuous - sustains full load without thermal derating under typical PCB layout (θJA = 50°C/W). |
| Input Voltage Range | 2.7V to 5.5V - compatible with single-cell Li-ion (3.0–4.2V), USB 5V, and 3.3V system rails. |
| Output Voltage | Adjustable from 0.6V to VIN - set via external resistor divider; FB pin references internal 0.600V ±1.5% (0.591–0.609V). |
| Switching Frequency | 1.4MHz (typical), 1.12–1.68MHz range - enables use of compact 2.2–3.3μH inductors and 10–22μF ceramic output capacitors. |
| Quiescent Current | 42μA (typical) at no load - extends battery life in always-on subsystems such as camera sensor bias rails. |
| Efficiency | Up to 95% at 3.3V/1A (VIN = 4.2V) - achieved via low RDS(ON) MOSFETs and optimized gate drive. |
| Thermal Protection | 140°C junction shutdown with 15°C hysteresis - prevents permanent damage during sustained overload or poor heatsinking. |
Pinout & Package
Package: 16-pin QFN33-16 (3mm × 3mm, 0.5mm pitch) with exposed thermal pad (EP) connected to PGND. Rated for -40°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 13, 14, 15 | PGND | Main power ground return - must connect directly to input/output capacitor grounds and EP; forms low-impedance path for high di/dt switch currents. |
| 4 | FB | Feedback input - senses output voltage via resistive divider; internal 0.6V reference sets VOUT = 0.6V × (1 + R3/R4). |
| 5 | SGND | Signal ground - return for FB, EN, and internal analog circuitry; must be isolated from PGND except at single-point star connection. |
| 6, 8, 16 | N/C | No internal connection - left unconnected; no routing or copper required. |
| 7 | EN | Enable input - logic-high (>1.4V) enables regulation; logic-low (<0.6V) forces shutdown (<1μA supply current). |
| 9 | VCC | Bias supply - powers internal control circuitry; connect to input rail with local 0.1μF bypass capacitor. |
| 10, 11, 12 | VP | Power-stage input - supplies high-current path to internal MOSFETs; requires low-ESR/ESL 10–22μF ceramic decoupling to PGND. |
| 13, 14, 15 | LX | Switch node - connects to inductor; internally tied to drains of both high- and low-side MOSFETs; carries high-frequency pulsed current. |
Key Features
| Feature | Design Value |
|---|---|
| 100% Duty Cycle Operation | Enables dropout-free regulation down to VOUT = VIN − IOUT × RDS(ON)H, critical for high-VOUT/low-VIN scenarios like 3.3V from 3.6V Li-ion. |
| No External Compensation | Internally compensated loop eliminates need for external RC network - reduces BOM count and layout sensitivity. |
| Low-Noise Light Load Mode | Maintains high efficiency and low spectral noise below 150mA - avoids audible switching artifacts and EMI in audio/sensor subsystems. |
| Integrated Soft Start | 150μs typical ramp time - prevents inrush current and output overshoot during enable or cold start. |
| Over-Temperature & Current Limit | Auto-recovering protection: thermal shutdown at 140°C (15°C hysteresis); current limit triggers pulse-skipping at 3.5A (typical). |
Applications
| Digital Camera Power Rail | USB Peripheral Power Supply |
|---|---|
|
Use Scenario: Powers image sensor and ISP core in compact digital cameras requiring clean, efficient 1.8V/2.5V rails from 3.6V Li-ion. IC Role / Device Role / Timing Role: Primary step-down regulator delivering regulated 1.8V at up to 2.5A with <±0.5% accuracy and fast transient response to burst-mode sensor loads. Use Value: Ultra-low 42μA quiescent current extends standby time; 1.4MHz switching minimizes inductor size; 100% duty cycle maintains regulation as battery discharges to 3.0V. |
Use Scenario: Generates stable 3.3V or 5.0V supply for USB 2.0 peripherals (keyboards, hubs, dongles) powered from host 5V bus or battery. IC Role / Device Role / Timing Role: High-efficiency buck converter with EN-controlled sequencing, supporting dynamic load steps from idle (10mA) to active (2.5A) states. Use Value: 95% peak efficiency reduces thermal load in sealed enclosures; low-noise light-load mode prevents interference with USB signal integrity. |
| Portable Media Player Core Logic | Handheld Computer SoC Rail |
|
Use Scenario: Supplies 1.2V core voltage to ARM-based media processor in MP3 players, requiring tight regulation and minimal ripple. IC Role / Device Role / Timing Role: Adjustable-output buck regulator with FB pin enabling precise 1.2V setting; handles rapid load transients during codec activation. Use Value: ±0.5% output accuracy ensures reliable CPU operation; integrated current limit (3.5A) protects against short-circuited memory or display interfaces. |
Use Scenario: Provides 1.8V I/O rail for application processors in PDAs and handheld computers operating from 3.3V or 4.2V sources. IC Role / Device Role / Timing Role: Compact, high-current DC/DC converter with thermal shutdown and soft-start, supporting hot-plug and sleep/wake cycles. Use Value: QFN33-16 package (3×3mm) saves board area; 50°C/W θJA allows operation at full load without heatsink in typical 2-layer FR4 layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRVR | 2.0A max output, 2.05–6.0V input, 2.25MHz switching, 17μA IQ, fixed 1.8V/3.3V options only - no adjustable FB. | Best for fixed-output, higher-frequency designs where footprint is secondary to EMI filtering ease. | Select when fixed VOUT suffices and higher switching frequency enables smaller L/C; avoid if adjustable output or 2.5A load is required. |
| RT8059GJ6 | 3A max output, 2.5–5.5V input, 1.5MHz switching, 55μA IQ, adjustable 0.6–5.0V via FB - but requires external compensation. | Suitable for higher-current apps needing margin beyond 2.5A, with tolerance for added compensation components. | Choose when >2.5A headroom is critical and layout allows RC compensation network; not drop-in due to different pinout and compensation needs. |
Compared with TPS62231DRVR and RT8059GJ6, the AAT2153IVN-0.6-T1 uniquely combines 2.5A capability, true 0.6V adjustable output, no external compensation, and ultra-low 42μA quiescent current - making it optimal for battery-powered portable systems demanding flexibility, efficiency, and minimal BOM count.
Availability
AAT2153IVN-0.6-T1 is available at Aetrix Electronics and suitable for digital camera power rails, USB peripheral supplies, portable media player core logic, and handheld computer SoC rails requiring stable component supply, long-term lifecycle support, and consistent parametric performance.
Supply support for AAT2153IVN-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 for mobile, automotive, and infrastructure markets.
The AAT2153IVN-0.6-T1 belongs to Skyworks' SwitchReg™ family of monolithic DC/DC converters, designed specifically for high-efficiency, low-noise power conversion in space-constrained portable electronics where battery life, thermal performance, and design simplicity are critical.
FAQ
What is the minimum output voltage supported by the AAT2153IVN-0.6-T1?
The AAT2153IVN-0.6-T1 supports a minimum output voltage of 0.6V, set by its internal precision reference. This value is guaranteed at ±1.5% (0.591–0.609V) over temperature and load, enabling stable low-voltage rails for modern ultra-low-power processors and sensors. The 0.6V threshold is fixed and non-adjustable - all output voltages are derived as VOUT = 0.6V × (1 + R3/R4).
Does the AAT2153IVN-0.6-T1 require external compensation components?
No, the AAT2153IVN-0.6-T1 does not require external compensation components. Its control loop is fully internally compensated using peak current mode architecture with fixed slope compensation, eliminating the need for external RC networks. This simplifies design, reduces BOM cost, and improves layout robustness - confirmed in the datasheet's "No External Compensation Required" feature and functional block diagram.
What is the thermal resistance (θJA) of the AAT2153IVN-0.6-T1 package?
The AAT2153IVN-0.6-T1 in its QFN33-16 (3×3mm) package has a maximum junction-to-ambient thermal resistance (θJA) of 50°C/W when mounted on a standard demo board (FR4, still air) with the exposed paddle soldered to PGND. This value assumes proper PCB copper pour and thermal vias - actual θJA improves with enhanced heatsinking.
How does the AAT2153IVN-0.6-T1 handle dropout conditions?
The AAT2153IVN-0.6-T1 supports 100% duty cycle operation to maintain regulation in dropout: when VIN approaches VOUT, the high-side P-channel MOSFET remains fully on, and VOUT = VIN − IOUT × RDS(ON)H. With RDS(ON)H = 0.12Ω, dropout headroom is ~200mV at 2.5A - enabling reliable operation down to VIN = VOUT + 0.2V.
What is the shutdown current specification for the AAT2153IVN-0.6-T1?
The AAT2153IVN-0.6-T1 draws less than 1.0μA of total supply current when disabled via the EN pin (VEN ≤ 0.6V). This ultra-low shutdown current is specified in the Electrical Characteristics table and verified across temperature, making it suitable for battery-backed systems requiring multi-year shelf life or deep-sleep modes.
AAT2153IVN-0.6-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- SwitchReg™
- Package/Case:
- 16-VFQFN 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):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 2.5A
- Frequency - Switching:
- 1.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (3x3)
AAT2153IVN-0.6-T1 FAQ
1.How can I place an order for AAT2153IVN-0.6-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AAT2153IVN-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 AAT2153IVN-0.6-T1 reliable?
The price and inventory of AAT2153IVN-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 AAT2153IVN-0.6-T1 is usually 5 days.
3.What payment methods are accepted for AAT2153IVN-0.6-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AAT2153IVN-0.6-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AAT2153IVN-0.6-T1?
AAT2153IVN-0.6-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AAT2153IVN-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 AAT2153IVN-0.6-T1?
For technical support, including AAT2153IVN-0.6-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AAT2153IVN-0.6-T1 requirements.
6.How does Aetrix verify that AAT2153IVN-0.6-T1 is sourced from the original manufacturer or authorized distributors?
All AAT2153IVN-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 AAT2153IVN-0.6-T1 meets industry standards.
7.What is the process for return or replacement of AAT2153IVN-0.6-T1?
All AAT2153IVN-0.6-T1 units undergo pre-shipment inspection (PSI). If there is an issue with AAT2153IVN-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 AAT2153IVN-0.6-T1 part is unused and in its original packaging.
Return procedure for AAT2153IVN-0.6-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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