Integrated Circuits
These are bare chips for your own board — surface-mount ICs that you place and support with external components. Use them when you are laying out the circuit yourself. If you would rather buy a part that works out of the box, see the isolated DC-DC converters or the amplifier modules.
ATI stocks 27 analog and mixed-signal ICs in two families: power management and signal chain. Prices start at $0.39, quantity discounts are shown on each product page, and parts ship from stock in San Jose.
Two families
Power Management ICs handle the supply side: stepping a rail down, protecting a battery pack, driving a relay. Signal Chain ICs handle the measurement side: amplifying a small signal or picking up sound.
Our Delivery Promise
Fast, flexible fulfillment from San Jose, California, USA — shipped worldwide.
- Fast in-stock shipping — In-stock orders ship within 1–2 business days after confirmation and quality check.
- Made-to-order models — Some models are produced to order. Contact sales@analogti.com for the current lead time.
- Worldwide shipping — Shipped from San Jose to customers worldwide.
- Flexible carrier options — UPS, FedEx, DHL, USPS, freight forwarders, or your preferred logistics partners.
- Clear shipment visibility — Tracking provided after dispatch to support your receiving and production planning.
What we stock
Five kinds of part across the two categories.
| Type | Key numbers | Category |
|---|---|---|
| Step-Down DC-DC Converters 8 models · $0.39–$1.28 | 2.5 V to 42 V input · 0.6 A to 2 A 340 kHz to 2 MHz · synchronous and non-synchronous |
Power Management |
| Battery Protection ICs 6 models · $0.39–$0.74 | 1-cell and 3/4-cell Li-ion five factory-set threshold variants · 3-level overcurrent on the multi-cell part |
Power Management |
| Relay and Motor Driver 1 model · $0.46 | 5 V to 24 V · 800 mA bi-directional · integrated freewheeling diode |
Power Management |
| Operational Amplifiers 8 models · $0.59–$1.89 | 2.5 V to 36 V supply · 4.3 kHz to 350 MHz zero-drift, rail-to-rail and low-offset types |
Signal Chain |
| MEMS Microphones 4 models · $0.79–$0.99 | 63 to 65 dB(A) SNR · omni-directional analog and digital output · top and bottom port |
Signal Chain |
Also worth knowing:
- Evaluation boards: ATDC1934, ATDC2934 and ATI2202 each have a matching board with the chip already soldered on. Choose the board or the loose chip from the configuration menu on the product page.
Questions we get asked
Should I buy the converter chip or a ready-made converter module?
A chip is cheaper and smaller, but it is only part of the circuit. You still design the layout and add the inductor, the capacitors and the feedback network. A module arrives working, at a higher price and a larger size.
Buy the chip if you are laying out your own board. Buy a module if you need one working supply now, or if the design has to be isolated — none of the converter chips here provide isolation.
How do I choose between the five single-cell battery protection variants?
They are the same silicon with different factory-set detection voltages. The overcharge threshold is what separates them, and it must match the charge voltage of your cell. A cell charged to 4.2 V and a cell charged to 4.35 V need different parts. Two variants also add a sleep mode for packs that sit unused for long periods.