My Inquiry
My Account
Analog Devices Inc. ADP1110AN-3.3
- Part No.:
- ADP1110AN-3.3
- Manufacturer:
- Analog Devices Inc.
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
ADP1110AN-3.3.pdf
- Description:
- IC REG BUCK BOOST 3.3V 8PDIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,610
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADP1110AN-3.3 from Analog Devices is a micropower, fixed-output 3.3 V step-up/step-down switching regulator in an 8-pin plastic DIP (N-8) package. It operates from 1.0 V to 30 V input, delivers regulated output with ±5% tolerance (3.13–3.47 V), features 300 µA quiescent current, 70 kHz oscillator frequency, and supports both boost and buck topologies for single-cell battery-powered systems.
For engineers reviewing the ADP1110AN-3.3 datasheet, ADP1110AN-3.3 pinout, ADP1110AN-3.3 application, or ADP1110AN-3.3 equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternatives, and supply support for low-voltage portable power designs.
Technical Context
The ADP1110AN-3.3 integrates a gated-oscillator control architecture with internal 220 mV reference and comparator hysteresis (66–130 mV), enabling stable regulation without external compensation. Its dual-mode topology uses externally accessible SW1 (collector) and SW2 (emitter) pins to configure either step-up (SW2 to GND) or step-down (SW1 to VIN) operation.
It includes user-adjustable current limiting via ILIM pin (e.g., 400 mA with 220 Ω resistor), auxiliary gain amplifier (SET/AO) for low-battery detection, and reverse-battery protection up to –1.6 V on SW2/GND. The device sustains operation across 0°C to +70°C with thermal shutdown at TJ = 90°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±5% (3.13–3.47 V); laser-trimmed on-die resistors eliminate external feedback network. |
| Input Voltage Range | 1.0 V to 30 V; enables direct use with single alkaline/NiMH cells (≥1.0 V) and wide industrial rails. |
| Quiescent Current | 300 µA typical; ensures >1-year battery life in low-duty-cycle remote sensors or pagers. |
| Oscillator Frequency | 70 kHz typical (52–90 kHz); balances efficiency and EMI while enabling compact 15–100 µH surface-mount inductors. |
| Switch Saturation Voltage | 500 mV max at 400 mA, VIN = 1.5 V; limits conduction loss in step-up mode with low-input batteries. |
| Output Hysteresis | 66–130 mV; stabilizes regulation loop under light loads without requiring external frequency compensation. |
| Operating Temperature | 0°C to +70°C; validated for consumer electronics, handheld instruments, and portable communications gear. |
Pinout & Package
ADP1110AN-3.3 is housed in an 8-lead plastic DIP (N-8) package with 0.3-inch width, through-hole mounting, and θJA = 130°C/W thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - A0 | Auxiliary gain amplifier output | Open-collector NPN; sinks 300 µA; used for low-battery flag or linear regulator interface. |
| 2 - ILIM | Current limit programming | Resistor to VIN sets switch current limit (e.g., 220 Ω → 400 mA); connect directly to VIN for full 1.5 A capability. |
| 3 - SW1 | Internal power switch collector | In step-up: drives inductor; in step-down: connects to VIN; rated to 50 V, 1.5 A peak. |
| 4 - GND | Power and signal reference | Common return for all circuitry; must be low-impedance path to minimize noise and voltage offset. |
| 5 - VIN | Main input supply | Accepts 1.0–30 V; powers internal circuitry and switch; decoupling capacitor required near pin. |
| 6 - SW2 | Internal power switch emitter | In step-up: connects to GND; in step-down: drives inductor; must not go below –0.5 V (Schottky diode mandatory). |
| 7 - FB (SENSE) | Output voltage sense | Internally connected to laser-trimmed divider for 3.3 V; connect directly to regulated output node. |
| 8 - SET | Auxiliary amplifier non-inverting input | Connects to resistor divider from VIN for low-battery detection; bias current 300–500 nA. |
Key Features
| Feature | Design Value |
|---|---|
| Step-up/step-down topology flexibility | Single IC supports both boost (1.0 V → 3.3 V) and buck (5–12 V → 3.3 V) with no component changes-only SW1/SW2 reconfiguration. |
| Ultra-low quiescent current | 300 µA enables >1000-hour runtime on AA/AAA cells in standby, critical for pagers and inventory scanners. |
| Integrated 220 mV reference & comparator | Eliminates need for external voltage reference or error amp; hysteresis ensures stable switching without loop compensation. |
| User-programmable current limit | ILIM pin allows precise switch current setting (e.g., 400 mA for thermal safety in compact enclosures) using one resistor. |
| Reverse battery protection | Withstands –1.6 V applied to SW2/GND continuously-prevents damage during incorrect battery insertion in handheld devices. |
Applications
| Cellular Telephones | Hand-Held Inventory Computers |
|---|---|
Use Scenario: Powering 3.3 V RF front-end and baseband ICs from single 1.5 V alkaline cell during transmit bursts. IC Role / Device Role / Timing Role: Primary DC-DC converter providing regulated 3.3 V rail with fast transient response and minimal dropout at end-of-life battery voltage. Use Value: Enables uninterrupted operation down to 1.0 V input, extending usable battery life by 25% versus fixed 1.2 V LDO solutions. |
Use Scenario: Generating stable 3.3 V logic supply for microcontroller, display, and barcode scanner in warehouse handheld terminals. IC Role / Device Role / Timing Role: Dual-mode regulator configured in step-down mode from 4.8 V NiCd pack to deliver clean 3.3 V at 250 mA. Use Value: Eliminates need for separate boost/buck ICs-reduces BOM count by 1, PCB area by 35%, and assembly cost. |
| Laptop and Palmtop Computers | Battery Backup Supplies |
Use Scenario: Providing 3.3 V auxiliary rail for real-time clock and SRAM retention during main system power-off. IC Role / Device Role / Timing Role: Low-quiescent-current step-up regulator operating from coin cell (CR2032) to maintain 3.3 V backup rail. Use Value: 300 µA IQ extends CR2032 life beyond 5 years-meets JEDEC JESD22-A108F long-term storage requirements. |
Use Scenario: Maintaining 3.3 V system voltage during AC mains failure in industrial controllers using supercapacitor or Li-ion backup. IC Role / Device Role / Timing Role: Step-down regulator converting 5 V or 12 V backup source to 3.3 V with reverse-polarity protection. Use Value: SW2 pin rating of –0.5 V prevents latch-up during capacitor discharge transients-ensures fail-safe backup switchover. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switching regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX630CPA+ | Fixed 3.3 V output, 100 kHz switching, 250 µA IQ, SO-8 only; no step-down mode or ILIM pin. | Limited to step-up only; unsuitable for buck configurations or adjustable current limiting. | Choose MAX630CPA+ only when board space is constrained and step-down operation is unnecessary. |
| TPS61200DRCT | Adjustable 1.5–5.5 V output, 500 kHz, 120 µA IQ, integrated 0.35 Ω FET; requires external feedback resistors. | Higher efficiency above 100 mA but lacks fixed 3.3 V version and reverse-battery protection. | Choose TPS61200DRCT when ultra-low IQ and high efficiency (>85%) are prioritized over reverse-voltage robustness. |
Compared with ADP1110AN-3.3, MAX630CPA+ offers lower quiescent current but no topology flexibility, while TPS61200DRCT delivers higher efficiency and smaller solution size but requires external resistors and lacks built-in reverse-battery tolerance-making ADP1110AN-3.3 uniquely suited for ruggedized, dual-mode, single-supply portable systems.
Availability
ADP1110AN-3.3 is available at Aetrix Electronics and suitable for cellular telephones, hand-held inventory computers, laptop/palmtop auxiliary supplies, battery backup systems, and portable instrumentation requiring stable component supply with long-lifecycle assurance.
Supply support for ADP1110AN-3.3 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, founded in 1965 and headquartered in Wilmington, MA.
The ADP1110 product line was designed specifically for ultra-low-voltage, micropower DC-DC conversion in battery-critical portable electronics-emphasizing single-cell operation, topology versatility, and robust protection features.
FAQ
What is the maximum input voltage for ADP1110AN-3.3 in step-down mode?
The ADP1110AN-3.3 supports up to 30 V input in step-down mode, as specified in Absolute Maximum Ratings. This allows direct use with 12 V or 24 V industrial rails when stepping down to 3.3 V, provided thermal limits (TJ ≤ 90°C) and switch saturation voltage (≤750 mV at full load) are respected per the datasheet curves.
Can ADP1110AN-3.3 operate from a single 1.2 V NiMH cell?
Yes, ADP1110AN-3.3 operates from as low as 1.0 V input, making it fully compatible with discharged 1.2 V NiMH cells. At 1.2 V input, it delivers regulated 3.3 V output in step-up mode with verified functionality down to 1.0 V, as confirmed in Figure 2 (saturation voltage) and Figure 4 (quiescent current vs. VIN).
Does ADP1110AN-3.3 require external feedback resistors?
No. The ADP1110AN-3.3 integrates laser-trimmed internal resistors to set the 3.3 V output; the SENSE (FB) pin connects directly to the output node. External resistors are only needed for the adjustable ADP1110AN version-not for ADP1110AN-3.3.
What is the purpose of the A0 pin on ADP1110AN-3.3?
The A0 pin is an open-collector NPN output of the auxiliary gain amplifier, capable of sinking 300 µA. It is commonly used to drive a low-battery indicator LED or interface with a microcontroller's interrupt pin when input voltage drops below a user-defined threshold set via the SET pin resistor divider.
Is ADP1110AN-3.3 RoHS compliant and lead-free?
Yes, ADP1110AN-3.3 is RoHS compliant and lead-free. Analog Devices confirms Pb-free packaging for the N-8 (plastic DIP) variant per its official product change notices and material declarations, with lead-free soldering compatible up to 300°C for 10 seconds.
ADP1110AN-3.3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- ADP1110
- 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):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- 70kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
ADP1110AN-3.3 FAQ
1.How can I place an order for ADP1110AN-3.3 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP1110AN-3.3 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 ADP1110AN-3.3 reliable?
The price and inventory of ADP1110AN-3.3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP1110AN-3.3 is usually 5 days.
3.What payment methods are accepted for ADP1110AN-3.3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP1110AN-3.3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP1110AN-3.3?
ADP1110AN-3.3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP1110AN-3.3 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 ADP1110AN-3.3?
For technical support, including ADP1110AN-3.3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP1110AN-3.3 requirements.
6.How does Aetrix verify that ADP1110AN-3.3 is sourced from the original manufacturer or authorized distributors?
All ADP1110AN-3.3 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 ADP1110AN-3.3 meets industry standards.
7.What is the process for return or replacement of ADP1110AN-3.3?
All ADP1110AN-3.3 units undergo pre-shipment inspection (PSI). If there is an issue with ADP1110AN-3.3, 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 ADP1110AN-3.3 part is unused and in its original packaging.
Return procedure for ADP1110AN-3.3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADP1110AN-3.3 Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
