Product Overview
Linear Technology LT1172 1.25A 100kHz Switching Regulator IC DIP-8
Condition
Used. Equipment pull. Top markings legible: LT 9528, LT1172, CN8. Visual inspection only; function testing not performed.
Same or next business day shipping from our Idaho warehouse. Reliable parts since 1999. Honest pricing, no nonsense.
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Product Overview
The Linear Technology LT1172CN8 is a monolithic 1.25A switching regulator integrated circuit in an 8-pin plastic DIP package. Operating at a fixed 100 kHz switching frequency, it integrates an internal high-current power switch, oscillator, reference, and control circuitry to support step-up, step-down, inverting, and flyback DC-DC power supply circuits across a 3V to 40V input range.
Key Features
- Internal 1.25A power switch current limit
- Input operating voltage range of 3V to 40V
- Fixed 100 kHz internal switching oscillator
- Supports buck, boost, inverting, and flyback converter topologies
- Standard 8-pin dual in-line package (PDIP-8) through-hole mounting
- Molded markings verify commercial grade CN8 variant with date code 9528
Applications
- Bench power supply builds and custom step-up or step-down DC-DC conversion modules
- Repairing legacy industrial controller boards and legacy power management circuitry
- Maker and hobbyist projects requiring breadboard-friendly through-hole DIP power regulators
- Generating negative voltage rails or stepped-up voltages in battery-powered instrumentation
Frequently Asked Questions
What package style is this LT1172 integrated circuit?
This unit is the CN8 variant in an 8-pin plastic dual in-line package (PDIP-8) through-hole footprint with 0.300-inch row spacing.
What topologies can be built with the LT1172?
The internal switch architecture supports boost (step-up), buck (step-down), inverting, and flyback converter configurations.
Why buy an individually photographed pull over an unknown surplus lot?
You receive the exact through-hole component shown, verified by marking and physical inspection, without committing to bulk lots or unverified reels. Flat rate shipping is $8, orders over $28 ship free, and orders leave our Idaho warehouse the same or next business day.
Clean through-hole silicon from the classic era of Linear Tech power design. Drop it into your socket and get your voltage rail running.
Shipping? $8 flat rate, free once your order passes $28 - and it leaves the Idaho warehouse the same or next business day.
