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Analog Devices Inc. ADP1073AN-5
- Part No.:
- ADP1073AN-5
- Manufacturer:
- Analog Devices Inc.
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
ADP1073AN-5.pdf
- Description:
- IC REG BUCK BOOST 5V 8PDIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,813
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Product details
Overview
ADP1073AN-5 from Analog Devices is a micropower step-up/step-down DC–DC converter IC with fixed 5 V output, internal 1 A power switch, 100 µA quiescent current, and operation down to 1.0 V input voltage-designed for single-cell battery-powered instrumentation and portable devices.
For engineers reviewing the ADP1073AN-5 datasheet, ADP1073AN-5 pinout, ADP1073AN-5 application, or ADP1073AN-5 equivalent, key selection considerations include its gated-oscillator topology, dual-mode (boost/buck) configurability, on-chip low-battery detection via AO output, and compatibility with minimal external components including 82 µH inductors and OS-CON output capacitors.
Technical Context
The ADP1073AN-5 uses a gated-oscillator control architecture with a 19 kHz typical switching frequency and 38 µs fixed ON time, enabling high efficiency at ultra-low input voltages. Its comparator references a trimmed 212 mV internal bandgap, and feedback is applied directly to the FB pin without external resistors due to laser-trimmed internal voltage-setting network.
It integrates an uncommitted gain block (A2) with 400–1000 V/V gain and open-collector AO output capable of sinking 100 µA-configurable as low-battery detector or linear post-regulator. The ILIM pin supports user-adjustable current limiting via external resistor, and SW1/SW2 pins provide full access to both collector and emitter of the internal NPN power switch for flexible topology implementation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.00 V ±2.5%, guaranteed across temperature and load for stable logic supply generation. |
| Input Voltage Range | 1.0 V to 12.6 V in step-up mode; up to 30 V in step-down mode-enables direct operation from single alkaline/NiMH cells. |
| Quiescent Current | 100 µA typical at no load-minimizes battery drain in standby or intermittent-use systems. |
| Switch Current Limit | 400 mA typical with 220 Ω ILIM-to-VIN resistor; internal switch rated for 1.5 A peak-supports moderate-power portable loads. |
| Oscillator Frequency | 14–24 kHz, typical 19 kHz-low-frequency switching reduces EMI and enables use of low-cost, high-inductance ferrite inductors. |
| Output Ripple | 125 mV typical at 5 V output-reducible via gain-block filtering or low-ESR OS-CON capacitors. |
| Package | 8-Lead Plastic DIP (N-8), 0.3-inch width-through-hole compatible for prototyping and industrial assembly. |
Pinout & Package
ADP1073AN-5 is housed in an 8-lead plastic DIP (N-8) package with 0.3-inch body width and standard through-hole pitch. Pin 1 is marked by a notch or dot; top-side markings include "ADP1073AN-5" and date code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - ILIM | Current limit reference input | Connect to VIN for default 1.5 A switch limit; add 220 Ω resistor to VIN for 400 mA limit-enables safe operation with small inductors. |
| 2 - VIN | Main power input | Accepts 1.0–30 V; supplies internal circuitry and switch base drive-supports single-cell to multi-cell battery inputs. |
| 3 - SW1 | Power switch collector | In step-up: connects to inductor/diode node; in step-down: connects to VIN-defines topology configuration. |
| 4 - SW2 | Power switch emitter | In step-up: connects to GND; in step-down: connects to inductor-must not drop more than diode drop below ground. |
| 5 - GND | Analog and power ground | Common return for internal reference, comparator, and oscillator-requires low-impedance connection to minimize noise. |
| 6 - AO | Auxiliary gain amplifier output | Open-collector NPN output sinking up to 100 µA-used for low-battery flag or linear regulation when paired with external divider. |
| 7 - SET | Gain amplifier non-inverting input | Accepts voltage divider from VIN to set low-battery threshold; referenced internally to 212 mV-enables programmable undervoltage lockout. |
| 8 - FB/SENSE | Feedback input / voltage sense | Direct connection to regulated 5 V output (no external resistors needed)-internal laser-trimmed network sets precise 5.00 V regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Single-cell start-up capability | Operates from 1.0 V input-enables use with depleted alkaline or NiMH cells without brownout. |
| Dual-mode topology support | Configurable as boost (VIN < VOUT) or buck (VIN > VOUT) via SW1/SW2 wiring-eliminates need for separate ICs per voltage conversion direction. |
| Integrated low-battery detector | Auxiliary gain block (A2) + AO output provides programmable undervoltage warning-reduces BOM count versus discrete comparator solutions. |
| Minimal external component count | Only inductor, diode, and output capacitor required for basic 5 V conversion-reduces PCB area and design validation effort. |
| Robust switch protection | Reverse battery tolerance to –400 mV on SW2 and 1.6 V reverse on GND/SW2-enhances field reliability in battery-reversal-prone handhelds. |
Applications
| Single-Cell to 5 V Power Supply | Laptop/Palmtop Peripheral Rail |
|---|---|
Use Scenario: Generating regulated 5 V from a single 1.5 V alkaline AA cell in hand-held test equipment. IC Role / Device Role / Timing Role: Primary DC–DC controller managing energy transfer via gated oscillator and internal NPN switch. Use Value: Enables >40 mA at 5 V from 1.25 V input-extending usable battery life beyond conventional LDO limits. | Use Scenario: Providing auxiliary 5 V rail for USB peripherals or SD card interfaces in compact computing devices. IC Role / Device Role / Timing Role: Step-down regulator converting main 7–12 V battery bus to stable 5 V logic supply. Use Value: Delivers 10–150 mA with 100 µA quiescent current-preserving system runtime during sleep modes. |
| Battery Backup Instrumentation | 4–20 mA Loop-Powered Sensors |
Use Scenario: Maintaining real-time clock or memory retention during AC power loss in industrial controllers. IC Role / Device Role / Timing Role: Low-quiescent backup converter sourcing 5 V from supercapacitor or backup Li-ion cell. Use Value: 100 µA IQ ensures >100-hour hold-up time from 0.1 F/2.5 V supercap-without active supervision. | Use Scenario: Powering analog sensor front-ends in two-wire 4–20 mA transmitters with tight loop power budgets. IC Role / Device Role / Timing Role: Micropower step-up regulator generating local 5 V rail from loop's 4–20 mA current source. Use Value: Operates down to 1.0 V input and draws only 100 µA idle-maximizing available loop voltage margin for signal conditioning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar micropower DC–DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX630CPA+ | Fixed 5 V output, 100 µA IQ, but only step-up mode; no step-down or AO output. | Lacks dual-mode flexibility and integrated low-battery detection-requires external comparator for UVLO. | Select when only boost conversion is needed and board space permits added discrete components. |
| TPS61200DRCR | Adjustable output (0.9–5.5 V), 5.5 µA IQ, 1.2 MHz switching-higher efficiency above 1.8 V input. | Requires external feedback resistors; no integrated gain block or AO output-less suitable for battery monitoring. | Prefer for higher-efficiency, higher-frequency designs where adjustable output and ultra-low IQ outweigh missing analog features. |
Compared with MAX630CPA+ and TPS61200DRCR, the ADP1073AN-5 uniquely combines fixed 5 V accuracy, true dual-mode topology, on-chip low-battery detection, and 100 µA quiescent current in a through-hole DIP package-making it optimal for cost-sensitive, battery-life-critical instrumentation requiring minimal external parts.
Availability
ADP1073AN-5 is available at Aetrix Electronics and suitable for portable instrumentation, battery backup systems, and 4–20 mA loop-powered sensors requiring stable component supply with long-lifecycle assurance.
Supply support for ADP1073AN-5 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 ADP1073 family was designed specifically for ultra-low-voltage, micropower DC–DC conversion in battery-constrained applications-emphasizing single-cell start-up, minimal external components, and integrated monitoring functions.
FAQ
What is the minimum input voltage required for ADP1073AN-5 to regulate 5 V output?
The ADP1073AN-5 regulates 5 V output from as low as 1.0 V input in step-up mode, delivering 10 mA at 5 V from a 1.0 V source and 40 mA at 5 V from 1.25 V. This capability is enabled by its gated-oscillator architecture and low-threshold comparator referencing a 212 mV internal bandgap. Performance is specified across 0°C to +70°C ambient.
Can ADP1073AN-5 be used in step-down (buck) configuration?
Yes, ADP1073AN-5 supports step-down operation with input voltages up to 30 V. In buck mode, SW1 connects to VIN and SW2 drives the inductor. The device maintains 5 V regulation with up to 150 mA output, though efficiency decreases above 6 V input due to higher switch saturation voltage. External current limiting via ILIM resistor is recommended for consistent performance across wide input ranges.
Does ADP1073AN-5 require external feedback resistors to set its 5 V output?
No, ADP1073AN-5 does not require external feedback resistors. It incorporates laser-trimmed internal resistors that fix the output to 5.00 V ±2.5%, so the FB/SENSE pin connects directly to the output. This eliminates resistor tolerance errors and layout sensitivity-unlike the adjustable ADP1073 version, which requires external R1/R2 to set VOUT = 212 mV × (1 + R1/R2).
How is low-battery detection implemented on ADP1073AN-5?
Low-battery detection uses the uncommitted gain block (A2) and AO open-collector output. A resistor divider from VIN to GND applies a scaled voltage to the SET pin; when this falls below the internal 212 mV reference, AO pulls low. The ADP1073AN-5 datasheet provides example networks-for instance, a 100 kΩ/10 kΩ divider triggers AO at ~2.3 V input. AO sinks up to 100 µA, allowing direct interface to microcontroller GPIOs.
What package type and lead finish does ADP1073AN-5 use?
ADP1073AN-5 is supplied in an 8-lead plastic DIP (N-8) package with standard through-hole leads and matte tin (Sn) lead finish. It measures 0.300 inches wide with 0.3 inch row spacing and 0.1 inch lead pitch. The package is RoHS-compliant and rated for 0°C to +70°C operation. No lead-free conversion or halogen-free option is specified for this variant.
ADP1073AN-5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- ADP1073
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1V
- Voltage - Input (Max):
- 30V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- 19kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
ADP1073AN-5 FAQ
1.How can I place an order for ADP1073AN-5 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP1073AN-5 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 ADP1073AN-5 reliable?
The price and inventory of ADP1073AN-5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP1073AN-5 is usually 5 days.
3.What payment methods are accepted for ADP1073AN-5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP1073AN-5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP1073AN-5?
ADP1073AN-5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP1073AN-5 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 ADP1073AN-5?
For technical support, including ADP1073AN-5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP1073AN-5 requirements.
6.How does Aetrix verify that ADP1073AN-5 is sourced from the original manufacturer or authorized distributors?
All ADP1073AN-5 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 ADP1073AN-5 meets industry standards.
7.What is the process for return or replacement of ADP1073AN-5?
All ADP1073AN-5 units undergo pre-shipment inspection (PSI). If there is an issue with ADP1073AN-5, 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 ADP1073AN-5 part is unused and in its original packaging.
Return procedure for ADP1073AN-5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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