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Analog Devices ADP1109AAN-3.3 — Memory (DRAM / SRAM / Flash / EEPROM)
Analog Devices

ADP1109AAN-3.3 Step-Up DC-DC Converter, 3.3V Fixed Output

MPNADP1109AAN-3.3
End of Life

Analog Devices ADP1109AAN-3.3, Step-Up DC-DC Converter, Boost Topology, Fixed 3.3V Output, 1.2A Switch, 2V-9V Input, 120kHz Switching, Through Hole 8-DIP (0.300", 7.62mm) Package, 0°C to 70°C.

$0.44Ref. price · indicative, final on quote
ADP1109AAN-3.3 datasheet
Packaging8-DIP (0.300", 7.62mm)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

ADP1109AAN-3.3 Technical Specifications
ParameterValue
Output typeFixed
Mounting typeThrough Hole
Voltage - input9V
Voltage - output (Min (Fixed))3.3V
Current - output1.2A (Switch)
Frequency120kHz
Number of outputs1
Operating temperature0°C ~ 70°C
PackageBulk
FunctionStep-Up
TopologyBoost
Case8-DIP (0.300\", 7.62mm)
Output configurationPositive
Synchronous rectifierNo

Product details

Fixed 3.3 V boost converter in a through-hole DIP

The ADP1109AAN-3.3 is a fixed-output step-up (boost) DC-DC converter delivering a regulated 3.3 V rail from input sources spanning 2 V to 9 V. The internal switch is rated for 1.2 A.

1.2 A switch current — what it means for your load

The 1.2 A switch current rating is the peak current the internal NPN switch can handle cycle-by-cycle.

Sourcing this part

The ADP1109AAN-3.3 is an active, RoHS-non-compliant boost converter in a through-hole DIP package. It is sourced through independent distribution channels and quoted to order against an RFQ.

Frequently asked questions

What are the alternatives to ADP1109AAN-3.3?

For a RoHS-compliant through-hole alternative with similar boost function, the ADP1111ANZ-5 offers a fixed 5 V output but also supports step-down topology and has a lower 0.4 A switch current. For higher output current (2.5 A switch) in a surface-mount package, the LT1305CS8#PBF is a boost-only part with fixed 5 V output. The ADP1111ARZ is an adjustable-output surface-mount part with 0.4 A switch and both buck and boost capability. None are drop-in pin-compatible — each requires a layout review.

Is ADP1109AAN-3.3 RoHS compliant?

No, the ADP1109AAN-3.3 is marked RoHS non-compliant. It contains lead (Pb) above the 0.1% threshold and is not suitable for RoHS-required assemblies without an exemption.

What is the pinout of ADP1109AAN-3.3?

The ADP1109AAN-3.3 uses a standard 8-DIP (0.300", 7.62 mm) package. The pinout follows the typical boost converter arrangement: VIN, GND, SW (switch output), FB (feedback — internally fixed for 3.3 V), and SHDN (shutdown). Refer to the datasheet for the exact pin numbering.