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Analog Devices Inc. ADP3000ARU-REEL7
- Part No.:
- ADP3000ARU-REEL7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADP3000ARU-REEL7.pdf
- Description:
- IC REG BUCK BST ADJ 1.5A 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,218
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Product details
Overview
ADP3000ARU-REEL7 from Analog Devices is a micropower step-up/step-down switching regulator in 14-lead TSSOP (RU-14) package, supporting input voltages from 2 V to 30 V and delivering up to 180 mA at 3.3 V in boost mode. It operates at 400 kHz with 500 µA shutdown quiescent current and integrates an on-chip low-battery detector and user-adjustable current limit. It is used in space-constrained portable power systems such as palmtop computers and cellular telephones.
For engineers reviewing the ADP3000ARU-REEL7 datasheet, ADP3000ARU-REEL7 pinout, ADP3000ARU-REEL7 application, or ADP3000ARU-REEL7 equivalent, key selection criteria include its dual-mode topology (boost/buck), 1.245 V internal reference accuracy, adjustable current limit via ILIM pin, thermal resistance of 150°C/W in RU-14 package, and compatibility with Schottky diodes and low-ESR tantalum capacitors.
Technical Context
The ADP3000ARU-REEL7 uses pulse frequency modulation (PFM) with a gated 400 kHz oscillator and internal 1.245 V reference to regulate output voltage. Its comparator hysteresis ensures loop stability without external compensation components.
It features dual external transistor terminals (SW1 collector, SW2 emitter) enabling both step-up and step-down configurations. The auxiliary gain block (AO/SET pins) supports low-battery detection, linear post-regulation, or undervoltage lockout functions with 300 µA sink capability and 1000–6000 V/V gain range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2 V to 12 V (step-up), 2 V to 30 V (step-down) - enables single-supply operation across wide battery chemistries including Li-ion, NiMH, and alkaline. |
| Switching Frequency | 350–450 kHz typical - allows use of compact 4.7–33 µH inductors and low-ESR tantalum capacitors for minimal PCB footprint. |
| Quiescent Current | 500 µA in shutdown - critical for battery life extension in always-on portable instrumentation and pagers. |
| Reference Voltage | 1.245 V ±4.5 mV - sets output accuracy for adjustable versions and laser-trimmed fixed outputs (3.3 V/5 V/12 V). |
| Current Limit | 400 mA with 220 Ω resistor from ILIM to VIN - programmable cycle-by-cycle protection prevents inductor saturation and thermal runaway. |
| Thermal Resistance | 150°C/W (RU-14) - defines maximum power dissipation (≤333 mW at 70°C ambient) before junction exceeds 125°C limit. |
| Output Hysteresis | 32–120 mV depending on version - stabilizes regulation under transient load changes without external feedback compensation. |
Pinout & Package
ADP3000ARU-REEL7 is packaged in a 14-lead TSSOP (RU-14) with exposed pad for thermal enhancement. Pin 1 is marked by a dot; pins 5, 9, 10, 11, 12, and 13 are no-connect (NC) internally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ILIM | Current limit programming input | Connects to VIN directly for max 1.5 A switch current, or to VIN via resistor (e.g., 220 Ω → 400 mA) to scale peak inductor current. |
| VIN | Main supply input | Accepts 2–30 V input; powers internal circuitry and supplies current to ILIM and SW1/SW2 paths depending on topology. |
| SW1 | Collector of internal NPN power switch | In step-up: drives inductor; in step-down: connects to input rail - must withstand up to 50 V transient voltage. |
| SW2 | Emitter of internal NPN power switch | In step-up: tied to GND; in step-down: drives inductor - must not go more than −350 mV below ground. |
| FB / SENSE | Feedback input for adjustable version | Connects to resistor divider from output; compares against 1.245 V reference to control oscillator duty cycle. |
| SET | Non-inverting input of auxiliary gain block | Accepts resistor divider from VIN to configure low-battery trip point; bias current ≤400 nA minimizes loading error. |
| A0 | Open-collector output of auxiliary gain block | Sinks ≥300 µA when SET voltage drops below 1.245 V - drives external logic or enables shutdown of downstream circuits. |
| GND | Analog and power ground reference | Common return path for feedback, gain block, and switch current; requires low-impedance PCB plane for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-mode topology | Single IC supports both step-up (2–12 V in → 3.3/5/12 V out) and step-down (2–30 V in → 3–12 V out) without external reconfiguration. |
| Low-quiescent-current PFM control | 500 µA shutdown IQ enables >1000-hour standby in coin-cell-powered devices like pagers and portable medical sensors. |
| Integrated current limiting | Externally programmable switch current limit avoids need for separate current-sense resistors or protection ICs. |
| On-chip auxiliary gain amplifier | Configurable as low-battery detector (e.g., 2.5 V trip), UVLO, or error amplifier - eliminates discrete op amp in battery management. |
| High-frequency switching | 400 kHz operation reduces required inductor size by ~4× versus 100 kHz controllers, easing layout in handheld PCBs. |
Applications
| Palmtop Computer Power | Cellular Telephone RF Bias |
|---|---|
Use Scenario: Powering 3.3 V logic and memory from single-cell Li-ion (2.7–4.2 V) during active and sleep modes. IC Role / Device Role / Timing Role: Step-down regulator providing stable 3.3 V rail with <500 µA quiescent draw in deep sleep. Use Value: Extends battery runtime by minimizing no-load power loss while maintaining fast wake-up response via PFM control. |
Use Scenario: Generating 5 V bias for RF power amplifiers from 3.3 V system rail in GSM/EDGE handsets. IC Role / Device Role / Timing Role: Step-up regulator operating at 400 kHz to avoid interference with 900/1800 MHz bands. Use Value: Enables compact, low-noise DC-DC conversion without requiring shielded inductors or additional EMI filtering. |
| Hard Disk Drive Motor Start-Up | Portable Instrumentation Sensor Bias |
Use Scenario: Delivering 12 V at 50 mA for HDD spindle motor startup from 4.5–5.5 V USB or battery source. IC Role / Device Role / Timing Role: Fixed-output step-up converter with 12 V laser-trimmed feedback network. Use Value: Eliminates external resistor divider, reducing BOM count and improving long-term output voltage drift performance. |
Use Scenario: Providing isolated ±5 V rails for precision analog front-ends in handheld multimeters or gas analyzers. IC Role / Device Role / Timing Role: Inverting configuration generating −5 V from +5 V input using internal switch and external diode. Use Value: Reduces component count vs. transformer-based inverters while maintaining <1% output regulation over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switching regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1771ESA+ | Fixed 5 V output only; 200 kHz switching; requires external MOSFET; no integrated current limit. | Limited to single-output buck-boost designs; higher board area due to external FET and sense resistor. | Choose MAX1771ESA+ only if fixed 5 V output suffices and lower EMI is prioritized over size. |
| TPS61040DRVR | Higher 600 kHz switching; 28 V max input; integrated Schottky; 0.5 µA shutdown IQ; no step-down capability. | Boost-only topology; unsuitable for input > output scenarios like 12 V → 5 V conversion. | Choose TPS61040DRVR when ultra-low IQ and high efficiency in pure boost applications outweigh need for buck mode. |
Compared with MAX1771ESA+ and TPS61040DRVR, ADP3000ARU-REEL7 uniquely supports both step-up and step-down topologies in one IC with programmable current limit and integrated gain amplifier - making it optimal for multi-rail portable systems where board space and BOM count are constrained.
Availability
ADP3000ARU-REEL7 is available at Aetrix Electronics and suitable for notebook computers, cellular telephones, and portable instrumentation requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for ADP3000ARU-REEL7 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, headquartered in Norwood, MA.
The ADP3000 product line was designed for micropower, dual-mode DC-DC conversion in battery-operated portable electronics - emphasizing low IQ, small external component count, and flexible topology support.
FAQ
What is the maximum input voltage for ADP3000ARU-REEL7 in step-down mode?
The ADP3000ARU-REEL7 supports up to 30 V input in step-down mode, with absolute maximum rating of 36 V. Operation above 30 V risks exceeding thermal limits unless power dissipation is actively managed via heatsinking or reduced load current.
Can ADP3000ARU-REEL7 be used in inverting (negative output) configurations?
Yes, ADP3000ARU-REEL7 supports inverting operation - Figure 33 in the datasheet shows a verified −5 V/100 mA design using 1N5817 Schottky diode and standard external components. Output polarity reversal is achieved by reconfiguring SW1/SW2 connections per functional block diagram.
Does ADP3000ARU-REEL7 require external compensation components?
No, ADP3000ARU-REEL7 does not require external compensation. Its comparator hysteresis provides inherent loop stability, eliminating the need for phase-compensation capacitors or resistors in standard boost/buck configurations.
What is the purpose of the AO and SET pins on ADP3000ARU-REEL7?
The AO (open-collector output) and SET (non-inverting input) pins form an auxiliary gain block. When configured with a resistor divider from VIN to SET, AO asserts low upon battery voltage drop below a user-defined threshold - enabling hardware-level low-battery shutdown without MCU intervention.
How does the ILIM pin affect current limiting in ADP3000ARU-REEL7?
The ILIM pin programs cycle-by-cycle current limit by sensing voltage across an external resistor between ILIM and VIN. A 220 Ω resistor sets 400 mA limit; direct connection to VIN yields 1.5 A max. This avoids external current-sense resistors and simplifies overcurrent protection design.
ADP3000ARU-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2V
- Voltage - Input (Max):
- 30V
- Voltage - Output (Min/Fixed):
- 1.245V
- Voltage - Output (Max):
- 24V
- Current - Output:
- 1.5A (Switch)
- Frequency - Switching:
- 400kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
ADP3000ARU-REEL7 FAQ
1.How can I place an order for ADP3000ARU-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP3000ARU-REEL7 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 ADP3000ARU-REEL7 reliable?
The price and inventory of ADP3000ARU-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP3000ARU-REEL7 is usually 5 days.
3.What payment methods are accepted for ADP3000ARU-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP3000ARU-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP3000ARU-REEL7?
ADP3000ARU-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP3000ARU-REEL7 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 ADP3000ARU-REEL7?
For technical support, including ADP3000ARU-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP3000ARU-REEL7 requirements.
6.How does Aetrix verify that ADP3000ARU-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADP3000ARU-REEL7 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 ADP3000ARU-REEL7 meets industry standards.
7.What is the process for return or replacement of ADP3000ARU-REEL7?
All ADP3000ARU-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP3000ARU-REEL7, 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 ADP3000ARU-REEL7 part is unused and in its original packaging.
Return procedure for ADP3000ARU-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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