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Analog Devices Inc. ADPL16000AATA+T
- Part No.:
- ADPL16000AATA+T
- Manufacturer:
- Analog Devices Inc.
- Package:
- 8-WFDFN
- Datasheet:
-
ADPL16000AATA+T.pdf
- Description:
- IC REG BUCK 3.3V 0.4V 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,465
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Product details
Overview
ADPL16000AATA+T from Analog Devices is a 60V-input, 400mA synchronous step-down DC-DC converter in an 8-pin 2mm × 2mm TDFN-CU package, delivering a fixed 3.3V output with 92% peak efficiency, internal compensation, and integrated high-side pMOS (1.8Ω typ) and low-side nMOS (0.62Ω typ) switches - designed for industrial sensors and 4–20mA current loop power rails.
For engineers reviewing the ADPL16000AATA+T datasheet, ADPL16000AATA+T pinout, ADPL16000AATA+T application, or ADPL16000AATA+T equivalent, key selection criteria include its 4.5V–60V input range, PFM/PWM mode configurability via MODE pin, monotonic startup into prebiased outputs, hiccup-mode overcurrent protection, and built-in open-drain RESET monitoring with 95%/92% trip thresholds.
Technical Context
The ADPL16000AATA+T employs peak-current-mode control with internal slope compensation and a fixed 500kHz switching frequency (±35kHz). Its MODE pin latches at power-up to select either constant-frequency PWM (MODE = GND) or light-load-optimized PFM (MODE unconnected), where negative inductor current is disabled and pulse skipping occurs below ~90mA load.
It integrates a 5V LDO (VCC) with 4.75V–5.25V regulation, 13–50mA current limit, and 0.3V dropout at 5mA; EN/UVLO supports programmable input UVLO via external resistor divider (1.215V rising threshold); FB/VOUT is internally tied to set 3.3V output with ±2% regulation accuracy across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 60V - supports wide industrial supply rails including 24V, 36V, and 48V systems without external pre-regulation. |
| Output Voltage | Fixed 3.3V ±2% - internally trimmed; no external feedback resistors required for nominal operation. |
| Max Output Current | 400mA - sustained delivery under full thermal derating up to +125°C ambient. |
| Peak Efficiency | 92% at 24VIN/3.3VOUT/200mA - enables ultra-low thermal footprint in space-constrained modules. |
| Switching Frequency | 500kHz ±35kHz - balances EMI performance and inductor size; supports compact 68µH ceramic inductors. |
| Shutdown Current | 2.2µA typical - minimizes battery drain in always-on industrial monitoring nodes. |
| Operating Temp | −40°C to +125°C ambient - qualified for harsh environments including HVAC and factory automation. |
Pinout & Package
ADPL16000AATA+T is housed in an 8-pin, 2mm × 2mm TDFN-CU package with exposed thermal pad (pin 7 GND connected to pad). The package supports high-density PCB layouts and efficient thermal dissipation in thermally constrained enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power Input | Primary input rail connection; requires local 1µF X7R ceramic bypass to GND for stability and noise suppression. |
| EN/UVLO (Pin 2) | Enable / Input UVLO Input | Active-high logic input; rising threshold 1.215V enables startup; configurable UVLO via external resistor divider. |
| VCC (Pin 3) | Internal LDO Output | 5V regulated supply for internal circuitry; must be bypassed with ≥1µF capacitor to GND. |
| FB/VOUT (Pin 4) | Feedback / Output Sense | Internally connected to 3.3V reference; directly tied to output for fixed-version operation; no external divider needed. |
| MODE (Pin 5) | Control Mode Selection | Latched at power-up: GND = forced-PWM (fixed frequency); open = PFM (pulse-skipping, high light-load efficiency). |
| RESET (Pin 6) | Open-Drain Reset Monitor | Pulls low when VOUT falls below 92% of 3.3V; high-impedance 2ms after VOUT rises above 95% of 3.3V. |
| GND (Pin 7) | Power Ground | Main ground return; connects to exposed thermal pad; must be low-impedance single-point connection per layout guidelines. |
| LX (Pin 8) | Switch Node | Connection to inductor switch node; high-impedance during shutdown; drives external 68µH inductor in buck topology. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous Buck Architecture | Integrated 1.8Ω high-side pMOS and 0.62Ω low-side nMOS eliminate external Schottky diode and reduce conduction losses. |
| Internal Compensation | Eliminates external compensation network - reduces BOM count and simplifies design validation for fixed-output variants. |
| Programmable UVLO & Soft-Start | EN/UVLO pin supports adjustable input turn-on threshold; 4.1ms monotonic soft-start prevents output overshoot into prebiased loads. |
| Hiccup-Mode Overcurrent Protection | Triggers after single runaway current event (>0.75A) or sustained undervoltage (<65% VOUT); 131ms timeout enables self-recovery without system reset. |
| CISPR32 Class B Compliance | Meets conducted and radiated emissions limits without external EMI filters - reduces layout complexity in EMC-sensitive applications. |
Applications
| Industrial Sensors | 4–20mA Current Loops |
|---|---|
Use Scenario: Powering MEMS pressure, temperature, and flow sensors in remote field transmitters operating from 24V loop supplies or solar-battery hybrids. IC Role / Device Role / Timing Role: Primary point-of-load regulator converting 24–48V loop voltage to clean, stable 3.3V for sensor signal conditioning and microcontroller core logic. Use Value: 92% efficiency and 2.2µA shutdown current extend battery life; hiccup-mode protection ensures robustness against sensor short-circuits. |
Use Scenario: Supplying isolated analog front-end circuitry in 4–20mA transmitter modules where headroom is limited by loop compliance voltage. IC Role / Device Role / Timing Role: High-voltage buck converter generating 3.3V rail for DACs, op-amps, and isolators while maintaining >12V loop compliance margin. Use Value: 60V max input withstands transient surges on industrial loops; PFM mode maintains >85% efficiency at µA-level sensor bias currents. |
| HVAC & Building Control | High-Voltage LDO Replacement |
Use Scenario: Powering wireless Zigbee/Z-Wave nodes and digital thermostats installed in HVAC ducts with wide ambient temperature swings. IC Role / Device Role / Timing Role: Compact 3.3V regulator sourcing 400mA from 12–48V building power bus, enabling direct integration into space-limited PCBs. Use Value: −40°C to +125°C ambient rating ensures reliability in unconditioned environments; 2mm × 2mm TDFN eliminates need for heatsinking. |
Use Scenario: Replacing inefficient 60V-input linear regulators in legacy industrial controllers where heat dissipation and efficiency are critical. IC Role / Device Role / Timing Role: Synchronous step-down replacement delivering same 3.3V output but with 92% efficiency vs. <15% for HV LDOs at 24VIN. Use Value: Reduces thermal load by >3W at 200mA load; eliminates need for large aluminum heatsinks and improves system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164QDDARQ1 | 4.5V–65V input, 3.3V fixed, 400mA, 500kHz, AEC-Q100 qualified; requires external compensation and feedback resistors. | Automotive-grade variant with higher ESD tolerance and extended qualification; lacks integrated RESET and PFM mode. | Select LM5164QDDARQ1 only for automotive safety-critical systems requiring AEC-Q100; ADPL16000AATA+T offers lower BOM count and simpler layout for industrial use. |
| TPS564201 | 4.5V–60V input, adjustable 0.8V–6V output, 400mA, 500kHz, no integrated RESET, no PFM mode, requires external feedback. | General-purpose buck with wider output adjustability but no fixed 3.3V option or built-in monitoring features. | Choose TPS564201 if output voltage flexibility or cost sensitivity outweighs need for RESET, PFM, or simplified fixed-output design. |
Compared with LM5164QDDARQ1 and TPS564201, ADPL16000AATA+T uniquely combines fixed 3.3V output, integrated RESET, PFM/PWM mode selection, and internal compensation - reducing component count by ≥4 passive parts and eliminating feedback resistor tolerancing in industrial point-of-load designs.
Availability
ADPL16000AATA+T is available at Aetrix Electronics and suitable for industrial sensors, 4–20mA current loops, HVAC controls, and high-voltage LDO replacements requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for ADPL16000AATA+T 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA, serving industrial, automotive, communications, and healthcare markets.
The ADPL16000 family was designed specifically for high-voltage, ultra-compact point-of-load conversion in space- and efficiency-constrained industrial systems - emphasizing integration, reliability, and ease of use over wide input ranges.
FAQ
What is the output voltage accuracy of the ADPL16000AATA+T over temperature and line?
The ADPL16000AATA+T delivers a fixed 3.3V output with ±2% regulation accuracy across −40°C to +125°C ambient temperature and 4.5V–60V input voltage range. At +25°C and VIN = 24V, typical output is 3.30V with min/max bounds of 3.25V and 3.42V depending on MODE pin state - verified per Table 1 in the ADPL16000 datasheet. This accuracy is achieved using an internal trimmed reference and does not require external calibration.
Does the ADPL16000AATA+T support startup into a prebiased output?
Yes, the ADPL16000AATA+T supports monotonic startup into a prebiased output in both PFM and forced-PWM modes. During enable or VIN ramp-up, the device avoids discharging the output capacitor by controlling gate drive timing and current limiting - critical for multi-rail systems where downstream ICs retain charge. This behavior is confirmed in Figures 38–43 of the ADPL16000 datasheet and enabled by internal soft-start sequencing independent of load current.
How is overcurrent protection implemented in the ADPL16000AATA+T?
The ADPL16000AATA+T implements dual-stage overcurrent protection: cycle-by-cycle peak current limiting at 0.62A (typ) and runaway current limiting at 0.75A (typ). A single runaway event triggers hiccup mode with 131ms timeout, during which switching halts and RESET asserts low. Recovery is automatic after timeout. This protects against sustained shorts and high-voltage overload conditions without requiring external circuitry - detailed in Section "Overcurrent Protection/Hiccup Mode" of the ADPL16000 datasheet.
Can the ADPL16000AATA+T operate with all-ceramic output capacitors?
Yes, the ADPL16000AATA+T is fully compatible with all-ceramic output capacitors, as confirmed in its FEATURES list and Typical Application Circuit (Figure 1). It specifies a minimum 22µF X7R ceramic output capacitor and uses internal compensation optimized for low-ESR ceramic types - eliminating need for electrolytic or tantalum capacitors and enabling ultra-compact, high-reliability layouts.
What is the function of the MODE pin on the ADPL16000AATA+T?
The MODE pin on the ADPL16000AATA+T selects between two operating modes: grounding MODE enables forced-PWM (constant 500kHz frequency at all loads), while leaving MODE unconnected enables PFM (pulse-frequency modulation) for high light-load efficiency. The pin state is latched at power-up and ignored thereafter - ensuring stable mode selection without runtime interference. This is documented in Sections "Mode Selection (MODE)" and "PFM Mode Operation" of the ADPL16000 datasheet.
ADPL16000AATA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 0.4V
- Frequency - Switching:
- 500kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x2)
ADPL16000AATA+T FAQ
1.How can I place an order for ADPL16000AATA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for ADPL16000AATA+T 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 ADPL16000AATA+T reliable?
The price and inventory of ADPL16000AATA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADPL16000AATA+T is usually 5 days.
3.What payment methods are accepted for ADPL16000AATA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADPL16000AATA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADPL16000AATA+T?
ADPL16000AATA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADPL16000AATA+T 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 ADPL16000AATA+T?
For technical support, including ADPL16000AATA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADPL16000AATA+T requirements.
6.How does Aetrix verify that ADPL16000AATA+T is sourced from the original manufacturer or authorized distributors?
All ADPL16000AATA+T 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 ADPL16000AATA+T meets industry standards.
7.What is the process for return or replacement of ADPL16000AATA+T?
All ADPL16000AATA+T units undergo pre-shipment inspection (PSI). If there is an issue with ADPL16000AATA+T, 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 ADPL16000AATA+T part is unused and in its original packaging.
Return procedure for ADPL16000AATA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADPL16000AATA+T Tags
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