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Analog Devices Inc. DC862A-A
- Part No.:
- DC862A-A
- Manufacturer:
- Analog Devices Inc.
- Package:
- Datasheet:
-
DC862A-A.pdf
- Description:
- EVAL BOARD FOR LTC32213.3
- Quantity:
- Payment:
- Shipping:
Inventory:1,016
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Product details
Overview
DC862A-A from Analog Devices (formerly Linear Technology) is a demonstration circuit implementing the LTC3221EDC-3.3 micropower regulated charge pump DC/DC converter in a 2mm × 2mm DFN package. It delivers a fixed 3.3V output at up to 60mA, operates from 1.8V–4.4V input, achieves 82% efficiency at 2V/60mA, and maintains low 40mVP–P output ripple with 600kHz switching frequency - ideal for space-constrained battery-powered portable systems.
For engineers reviewing the DC862A-A datasheet, DC862A-A pinout, DC862A-A application, or DC862A-A equivalent, this page provides verified performance data, input/output voltage limits, efficiency curves, ripple behavior under load, soft-start and protection features, and direct comparison to DC862A-B and DC862A-C variants for low-power DC/DC evaluation and embedded power design.
Technical Context
The DC862A-A implements a constant-current switched-capacitor charge pump topology using the LTC3221EDC-3.3 IC, enabling regulation without inductors. It employs hysteresis-based output voltage control with upper/lower trip points (3.168V/3.432V) and burst-mode operation to minimize quiescent current.
Soft-start prevents inrush current at turn-on; short-circuit current limiting and thermal protection ensure robustness during fault conditions. The circuit supports ultra-low-noise operation with 20MHz-bandwidth ripple measurement and requires no external compensation components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±3.6% (3.168V–3.432V), enabling stable logic-level supply for 3.3V microcontrollers and sensors. |
| Input Voltage Range | 1.8V to 4.4V, compatible with single-cell Li-ion, LiFePO₄, or dual-cell alkaline batteries. |
| Max Output Current | 60mA continuous, sufficient for low-power RF modules, real-time clocks, and memory backup circuits. |
| Output Ripple | 40mVP–P @ VIN=4.4V, IOUT=0mA (20MHz BW), minimizing noise-sensitive analog circuit interference. |
| Switching Frequency | 600kHz fixed, allowing compact ceramic capacitor selection and predictable EMI profile. |
| Efficiency | 82% @ VIN=2V, IOUT=60mA, maximizing runtime in energy-critical wearable and IoT edge nodes. |
Availability
DC862A-A is available at Aetrix Electronics and suitable for battery-powered portable systems, low-power sensor nodes, and space-constrained embedded power applications requiring stable component supply and rapid evaluation of regulated charge-pump DC/DC conversion.
Supply support for DC862A-A 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. (ADI) is a global semiconductor leader specializing in high-performance analog, mixed-signal, and power management technologies. Formerly Linear Technology, ADI acquired Linear in 2017 and continues its legacy of precision power solutions.
The DC862A-A belongs to the Linear Technology Demonstration Circuit (DC) series, designed specifically to accelerate evaluation and prototyping of Linear's micropower DC/DC converters - targeting ultra-low-quiescent-current, inductorless power delivery for portable and battery-operated electronics.
FAQ
What is the purpose of the DC862A-A demonstration circuit?
The DC862A-A demonstration circuit is a fully assembled and tested evaluation platform for the LTC3221EDC-3.3 regulated charge pump DC/DC converter. It enables engineers to rapidly validate 3.3V output performance, efficiency, ripple, and protection features without designing custom PCBs. DC862A-A simplifies bench testing and integration into low-power system prototypes.
What input voltage range does the DC862A-A support?
The DC862A-A supports an input voltage range of 1.8V to 4.4V, as specified in its Quick Start Guide. This range accommodates common single-cell battery chemistries including Li-ion (2.7–4.2V), LiFePO₄ (2.0–3.6V), and alkaline/NiMH (1.8–3.0V). Exceeding 4.4V may damage the LTC3221EDC-3.3 on the DC862A-A board.
Does the DC862A-A require external components to operate?
No, the DC862A-A is a complete, ready-to-use evaluation board with all required passive components onboard - including flying and output capacitors, bypass capacitors, and jumper JP1 for enable control. No additional external components are needed to achieve regulated 3.3V output across its full operating range. DC862A-A ships fully populated and tested.
How does the DC862A-A handle overcurrent or short-circuit conditions?
The DC862A-A inherits the LTC3221EDC-3.3's built-in short-circuit current limiting and thermal protection. During sustained overload or short-circuit, the IC reduces output current and throttles switching to prevent damage. Recovery is automatic once the fault condition clears. This behavior is verified per the DC862A-A Quick Start Guide and ensures robust operation in field-deployed DC862A-A test setups.
Can the DC862A-A be used to evaluate programmable output configurations?
No - the DC862A-A is configured exclusively for fixed 3.3V output via the LTC3221EDC-3.3 variant. Programmable output (e.g., adjustable 3V) is supported only by the DC862A-C version using the base LTC3221EDC IC. Using DC862A-A for programmable evaluation would require hardware modification and is not supported; users should select DC862A-C instead for that functionality.
DC862A-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Main Purpose:
- DC/DC, Step Up
- Outputs and Type:
- 1 Non-Isolated Output
- Voltage - Output:
- -
- Current - Output:
- 3.3V
- Voltage - Input:
- 60mA
- Regulator Topology:
- 1.8V ~ 4.4V
- Frequency - Switching:
- Boost
- Contents:
- 600kHz
- Utilized IC / Part:
- Board(s)
- Power - Output:
- LTC3221-3.3
DC862A-A FAQ
1.How can I place an order for DC862A-A through Aetrix?
Please submit a Request for Quotation (RFQ) for DC862A-A 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 DC862A-A reliable?
The price and inventory of DC862A-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DC862A-A is usually 5 days.
3.What payment methods are accepted for DC862A-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DC862A-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DC862A-A?
DC862A-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DC862A-A 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 DC862A-A?
For technical support, including DC862A-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DC862A-A requirements.
6.How does Aetrix verify that DC862A-A is sourced from the original manufacturer or authorized distributors?
All DC862A-A 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 DC862A-A meets industry standards.
7.What is the process for return or replacement of DC862A-A?
All DC862A-A units undergo pre-shipment inspection (PSI). If there is an issue with DC862A-A, 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 DC862A-A part is unused and in its original packaging.
Return procedure for DC862A-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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