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Analog Devices Inc. ADP3000AR-3.3-REEL
- Part No.:
- ADP3000AR-3.3-REEL
- Manufacturer:
- Analog Devices Inc.
- Package:
- -
- Datasheet:
-
ADP3000AR-3.3-REEL.pdf
- Description:
- IC REG STEP UP/DWN 3.3V 8-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,373
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Product details
Overview
ADP3000AR-3.3-REEL from Analog Devices is a micropower step-up/step-down switching regulator with fixed 3.3 V output, operating from 2 V to 30 V input, delivering up to 180 mA in boost mode (2 V → 3.3 V), featuring 400 kHz switching frequency, 500 µA shutdown quiescent current, and integrated low-battery detector functionality - used in portable battery-powered systems requiring dual-mode voltage regulation.
For engineers reviewing the ADP3000AR-3.3-REEL datasheet, ADP3000AR-3.3-REEL pinout, ADP3000AR-3.3-REEL application, or ADP3000AR-3.3-REEL equivalent, key selection criteria include input voltage range compatibility (2–30 V), output current capability at low VIN, thermal performance in SOIC-8 package, and external component count for space-constrained designs.
Technical Context
The ADP3000AR-3.3-REEL implements pulse-frequency modulation (PFM) control with a gated 400 kHz oscillator, enabling ultra-low 500 µA quiescent current in shutdown. Its internal 1.245 V reference and comparator hysteresis (12.5 mV typ.) ensure stable regulation without external compensation.
It supports both step-up (VIN = 2–12.6 V) and step-down (VIN = 2–30 V) topologies via direct access to SW1 (collector) and SW2 (emitter) pins. The fixed 3.3 V version uses on-chip laser-trimmed resistors, eliminating external feedback components while maintaining ±5% output accuracy (3.135–3.465 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±5% (3.135–3.465 V); eliminates need for external resistor divider in typical applications. |
| Input Voltage Range | 2 V to 12.6 V (step-up), 2 V to 30 V (step-down); enables single IC to support wide battery chemistries (Li-ion, NiMH, alkaline). |
| Switching Frequency | 400 kHz typ. (350–450 kHz); allows use of compact 6.8 µH inductors and low-ESR tantalum capacitors. |
| Quiescent Current | 500 µA typ. in shutdown; critical for battery runtime extension in always-on portable devices. |
| Output Current Capability | 180 mA at 3.3 V from 2 V input (step-up); sufficient for powering microcontrollers, sensors, and RF modules. |
| Current Limit | Programmable up to 400 mA via ILIM pin; protects external inductor and diode during overload or short-circuit events. |
| Thermal Resistance | 120°C/W (N-8 PDIP), 150°C/W (RU-14 TSSOP), 170°C/W (R-8 SOIC); R-8 package used in ADP3000AR-3.3-REEL. |
Pinout & Package
ADP3000AR-3.3-REEL is packaged in an 8-lead SOIC (R-8) with standard JEDEC MS-012AA outline, 1.27 mm pitch, and 5.00 × 4.00 mm body size. Thermal pad not present; requires standard SOIC PCB footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ILIM | Current limit programming input | Connect to VIN for max 1.5 A switch current; tie to VIN via 220 Ω for 400 mA limit - sets peak inductor current threshold. |
| VIN | Main power input | Supplies internal circuitry and powers external switch; accepts 2–30 V across step-up/step-down modes. |
| SW1 | Internal transistor collector | In step-up: drives inductor; in step-down: connects to input rail - must withstand up to 50 V transient. |
| SW2 | Internal transistor emitter | In step-up: tied to GND; in step-down: drives inductor - must not go more than −350 mV below ground. |
| FB/SENSE | Feedback input (fixed version) | Internally connected to trimmed resistor divider; connect directly to regulated 3.3 V output for closed-loop control. |
| GND | Power and signal reference | Common return for all internal blocks; requires low-impedance PCB plane for noise immunity and thermal dissipation. |
| SET | Auxiliary amplifier non-inverting input | Accepts resistor divider from VIN to configure low-battery detection; bias current ≤400 nA minimizes loading error. |
| AO | Auxiliary gain block open-collector output | Sinks ≥300 µA; used for low-battery flag, UVLO, or post-regulator error signal - requires external pull-up. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-mode topology support | Single IC replaces separate buck and boost regulators - reduces BOM count and layout area in multi-rail portable systems. |
| On-chip low-battery detector | Configurable via SET/AO pins without external comparators - enables system-level battery monitoring with <1 µA added quiescent load. |
| User-adjustable current limit | Resistor-programmable switch current (up to 400 mA) - allows optimization of inductor size, cost, and thermal margin per application. |
| High-frequency PFM operation | 400 kHz switching with 500 µA shutdown IQ - achieves >75% efficiency at light loads while minimizing EMI filtering requirements. |
| Laser-trimmed fixed output | 3.3 V version guarantees ±5% accuracy over temperature and line - eliminates calibration and improves production yield vs. adjustable variants. |
Applications
| Handheld Medical Monitor | Industrial Sensor Node |
|---|---|
Use Scenario: Battery-powered ECG front-end with analog signal chain and BLE radio requiring stable 3.3 V from declining 2.4–3.6 V Li-ion cell. IC Role / Device Role / Timing Role: Step-up regulator providing regulated 3.3 V supply to ADC, op-amps, and transceiver - operates in PFM mode to extend battery life between charges. Use Value: Delivers 180 mA at 3.3 V from 2 V input with only 500 µA quiescent draw, enabling >100-hour runtime on single-cell battery. | Use Scenario: Wireless vibration sensor node powered by 2×AA alkaline cells (1.8–3.2 V) feeding 3.3 V MCU, MEMS accelerometer, and LoRa transceiver. IC Role / Device Role / Timing Role: Dual-mode regulator adapting to battery decay - starts in step-up (1.8 V → 3.3 V), transitions to step-down as voltage rises above 3.3 V. Use Value: Eliminates need for separate buck/boost ICs; programmable current limit prevents inductor saturation during motor-triggered surge currents. |
| Portable Test Instrument | Smart Meter Data Logger |
Use Scenario: Handheld multimeter with LCD, microcontroller, and precision reference needing clean 3.3 V rail from 3 V coin cell or USB input. IC Role / Device Role / Timing Role: Fixed-output step-up regulator with integrated low-battery flag (via AO/SET) - triggers display warning when VIN drops below 2.5 V. Use Value: On-chip comparator hysteresis (12.5 mV) prevents chatter during battery sag; 400 kHz frequency enables use of 6.8 µH inductor for minimal board area. | Use Scenario: Battery-backed data logger in utility meter using supercapacitor backup and primary alkaline source (1.2–1.6 V/cell). IC Role / Device Role / Timing Role: Micropower step-up controller generating 3.3 V for RTC, flash memory, and communication IC - maintains regulation down to 2 V input. Use Value: 500 µA shutdown IQ preserves supercapacitor charge during long sleep cycles; SOIC-8 package supports automated assembly and reflow compatibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switching regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61040DRBT | Fixed 3.3 V output, 28 V max input, 280 mA output, 500 kHz switching, 25 µA IQ (shutdown) | Lower quiescent current but narrower input range (1.8–6 V); no step-down capability | Preferred for ultra-low-power applications where input stays within 1.8–6 V and step-down mode is unnecessary. |
| LT1935ES5-3.3#TRMPBF | Fixed 3.3 V, 16 V max input, 1.1 A output, 1.2 MHz switching, 100 µA IQ (shutdown) | Higher output current and frequency; no step-down mode; different package (SOT-23-5) | Chosen when higher load current (>180 mA) or smaller inductor size (due to 1.2 MHz) is required. |
Compared with TPS61040DRBT and LT1935ES5-3.3#TRMPBF, ADP3000AR-3.3-REEL uniquely supports both step-up and step-down operation from a single IC - simplifying power architecture in systems with variable input sources, though at the cost of higher quiescent current than TPS61040 and lower max output current than LT1935.
Availability
ADP3000AR-3.3-REEL is available at Aetrix Electronics and suitable for handheld medical monitors, industrial sensor nodes, portable test instruments, and smart meter data loggers requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for ADP3000AR-3.3-REEL 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The ADP3000 product line was designed for space-constrained, battery-operated portable electronics requiring flexible DC/DC conversion - emphasizing micropower operation, dual-mode topology, and minimal external component count.
FAQ
What is the maximum output current of the ADP3000AR-3.3-REEL in step-up mode?
The ADP3000AR-3.3-REEL delivers up to 180 mA at 3.3 V from a 2 V input in step-up mode, as specified in the datasheet under "General Description." This value assumes proper thermal design using the R-8 SOIC package and recommended external components (e.g., SUMIDA CR43-6R8 inductor, AVX TPS D107 M010R0100 capacitors). Output current decreases as input voltage approaches 3.3 V due to reduced headroom.
Does the ADP3000AR-3.3-REEL support step-down operation?
Yes, the ADP3000AR-3.3-REEL supports step-down (buck) operation with input voltages from 2 V to 30 V. In this mode, it regulates 3.3 V output - for example, delivering 100 mA at 3 V from a 5 V input (per datasheet Figure 3). Pin connections differ: SW1 ties to VIN, SW2 drives the inductor, and FB connects to the output.
What package type is used in the ADP3000AR-3.3-REEL?
The ADP3000AR-3.3-REEL uses an 8-lead SOIC (R-8) package compliant with JEDEC MS-012AA, measuring 5.00 × 4.00 mm with 1.27 mm lead pitch. This surface-mount package supports automated assembly and provides thermal resistance of 170°C/W (junction-to-ambient), as documented in the Absolute Maximum Ratings table.
Can the ADP3000AR-3.3-REEL be used with a 12 V input?
Yes - the ADP3000AR-3.3-REEL supports step-down operation from inputs up to 30 V, including 12 V. When configured for buck mode with 12 V input, it delivers regulated 3.3 V output; however, thermal design must account for higher power dissipation. The datasheet specifies a maximum switch saturation voltage of 1.5 V at 650 mA in step-down mode, requiring appropriate inductor and diode selection.
Is an external feedback resistor divider required for the ADP3000AR-3.3-REEL?
No - the ADP3000AR-3.3-REEL is the fixed 3.3 V version, incorporating laser-trimmed on-chip resistors. The FB/SENSE pin connects directly to the regulated 3.3 V output, eliminating external resistors. This differs from the adjustable ADP3000 variant, which requires external R1/R2 to set output voltage.
ADP3000AR-3.3-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- -
- Output Configuration:
- -
- Topology:
- Buck-Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2V
- Voltage - Input (Max):
- 12.6V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADP3000AR-3.3-REEL FAQ
1.How can I place an order for ADP3000AR-3.3-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP3000AR-3.3-REEL 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 ADP3000AR-3.3-REEL reliable?
The price and inventory of ADP3000AR-3.3-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP3000AR-3.3-REEL is usually 5 days.
3.What payment methods are accepted for ADP3000AR-3.3-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP3000AR-3.3-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP3000AR-3.3-REEL?
ADP3000AR-3.3-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP3000AR-3.3-REEL 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 ADP3000AR-3.3-REEL?
For technical support, including ADP3000AR-3.3-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP3000AR-3.3-REEL requirements.
6.How does Aetrix verify that ADP3000AR-3.3-REEL is sourced from the original manufacturer or authorized distributors?
All ADP3000AR-3.3-REEL 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 ADP3000AR-3.3-REEL meets industry standards.
7.What is the process for return or replacement of ADP3000AR-3.3-REEL?
All ADP3000AR-3.3-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADP3000AR-3.3-REEL, 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 ADP3000AR-3.3-REEL part is unused and in its original packaging.
Return procedure for ADP3000AR-3.3-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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