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Analog Devices ADP1109AN-5 — Memory (DRAM / SRAM / Flash / EEPROM)
Analog Devices

ADP1109AN-5 Boost Converter, Fixed 5V Output, 1.2A Switch

MPNADP1109AN-5
End of Life

Analog Devices ADP1109AN-5, Step-Up Boost DC-DC Converter, Fixed 5V Output, 1.2A Switch, 120 kHz, Through Hole 8-DIP (0.300", 7.62mm), 0°C to 70°C.

$0.44Ref. price · indicative, final on quote
ADP1109AN-5 datasheet
Packaging8-DIP (0.300", 7.62mm)
StockContact for availability
MOQ1 pcs
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Specifications

ADP1109AN-5 Technical Specifications
ParameterValue
Output typeFixed
Mounting typeThrough Hole
Voltage - input9V
Voltage - output (Min (Fixed))5V
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 5V boost from 2V to 9V input

The ADP1109AN-5 is a step-up (boost) DC-DC converter from Analog Devices that delivers a fixed 5V output from an input range of 2V to 9V. It integrates a 1.2A switch rated at 120 kHz switching frequency, making it suitable for battery-powered or low-voltage rail conversion where a regulated 5V rail is needed. The through-hole package (0.300" width, 7.62 mm pitch) is a standard footprint for prototyping, breadboard work, or retrofit into legacy boards that use DIP sockets. Operating temperature is 0°C to 70°C, so it is intended for commercial/indoor environments — not extended industrial or automotive under-hood use.

1.2A switch current — what it means for your load

The 1.2A switch current is the peak current the internal power switch can handle. For a boost converter, the output current available to the load is lower than the switch current.

Through-hole DIP — board fit and handling

The through-hole package (0.300" body width, 7.62 mm lead pitch) is a standard footprint that fits common DIP sockets or can be soldered directly into plated through-holes.

Frequently asked questions

Can ADP1109AN-5 be used for a 5V boost from 3.3V?

Yes, the input voltage range of 2V to 9V includes 3.3V, and the fixed 5V output is within the boost capability. With a 3.3V input, expect roughly 600–700 mA output current before the 1.2A switch current limit is reached.

What is the pinout of ADP1109AN-5?

The ADP1109AN-5 uses the standard 8-DIP pinout for boost converters: pin 1 (SW), pin 2 (GND), pin 3 (GND), pin 4 (GND), pin 5 (FB), pin 6 (VIN), pin 7 (VIN), pin 8 (SHDN). For the fixed 5V version, FB is connected directly to the output.