If you have designed power supplies, industrial control, automotive electronics or communication boards in recent years, you have probably noticed a new prefix showing up on BOMs next to the classic "LM" and "TP" part numbers: 3PEAK. The company behind it has grown from a 5G base-station analog supplier into one of China's most prominent analog and mixed-signal design houses — and its parts are now standard second-source candidates for op-amps, comparators, RS-232/RS-485/CAN transceivers, LDOs and data converters. This article introduces the company, maps its product families, and walks through the 50 hot models that are being quoted most this week.
3PEAK was founded in 2012 in Suzhou, China, and listed on the Shanghai Stock Exchange STAR Market on September 21, 2020 (ticker 688536). The company focuses on high-performance, high-reliability analog and mixed-signal ICs, and today offers more than 3,200 products serving over 8,000 customers in more than 20 countries and regions. Its products have shipped into well-known systems from ZTE, Hikvision and iFlytek, and it was an early and critical analog supplier for 5G base stations. The company also attracted strategic investment from Huawei's Hubble Technology investment arm before its IPO — a strong signal of its position in the domestic semiconductor supply chain.
3PEAK's portfolio spans the full analog stack: signal chain, power management, data converters, interface transceivers, isolation products, drivers, battery management and embedded controllers. It is especially active in automotive (48V vehicle architectures, BMS, instrument clusters, ADAS), industrial (relay protection, energy storage, photovoltaics), communication (optical modules, servers, 5G) and consumer electronics, and its product breadth continues to widen with new launches such as domestically produced 80V CAN SIC transceivers and high-precision multi-channel ADCs.
3PEAK organizes its catalog into the following major families:
Amplifiers & Special Function Circuits — the largest family. Operational amplifiers are offered in high-voltage (Vs > 10V), low-voltage (Vs < 10V), precision (Vos ≤ 1mV), high-speed (GBW ≥ 50MHz), low-power (Iq per channel ≤ 50µA) and small-size (DFN) categories, plus instrumentation amplifiers and comparators.
Comparators — low-offset, low-overdrive and high-speed comparators with internal reference options, in packages from SOT-23-5 to SOP-8/MSOP-8 and DFN.
Data Converters (ADC/DAC) — precision converters from 12 to 24 bits, high-speed converters up to 125MHz sampling, plus single/multi-channel DACs (e.g., the pin-compatible 12/14/16-bit TPC11xS1 family and quad-channel TPC28xx family) and SAR ADCs with 8/16 channels.
Interface Products — RS-232, RS-485, CAN/LIN transceivers, SBC (system basis chips), MLVDS and isolated interface variants. ESD protection of ±12kV to ±15kV is standard across the RS-485 line.
Linear Regulators & References (LDO) — general-purpose and low-noise LDOs, adjustable and fixed output versions, DDR termination regulators, and precision voltage references.
Power Management & Drivers — DC-DC converters, power switches, load switches, gate drivers (including isolated gate drivers with up to 5.7kV RMS isolation), and power monitoring/supervisory circuits.
Isolation Products — digital isolators and isolated interface/amplifier parts.
Logic & Level Translation — level shifters, I/O expanders and logic translation for mixed-voltage systems.
Battery Management (BMS) — voltage/current/temperature sensing, power switch driving and cell monitoring for automotive and industrial battery systems.
The list below is the current hot-quote set. Part numbering is highly systematic: "TP" is the general analog prefix, "TPT" marks interface transceivers, "TPL" marks LDOs/linear regulators, "TPC" marks data converters, and "TPA/TPF/TPH/TPP" cover amplifiers and special-function circuits; the suffix encodes package and tape-and-reel options (e.g., -SO1R for SOP-8, -TS3R for TSSOP, -DF8R for DFN-8, -QF6R for QFN).
Operational Amplifiers (27)
The LM358/LM324/LMV321/LMV358/LM2904 entries are drop-in-compatible implementations of the industry-standard op-amp types — the same pinout and footprint, which makes them a practical second source for designs originally built around legacy parts.
Comparators (2)
Interface — RS-232 (3)
TPT3232E is a 3V–5.5V, 250kbps RS-232 transceiver family, ideal for low-power serial ports in industrial and consumer boards.
Interface — RS-485 (4)
The TPT75176 family is an enhanced RS-485 transceiver with ±12kV ESD protection and data rates up to 10Mbps for PROFIBUS-class applications; TP8485E is a 3.3V half-duplex RS-485 option for space-constrained designs.
Interface — CAN (1)
A 5V CAN bus transceiver for automotive and industrial networking, completing the interface lineup alongside the RS-232/RS-485 parts.
LDO / Linear Regulators (3)
Data Converters — DAC (2)
TPC116S1/TPC112S1 are pin-compatible with guaranteed monotonicity, low power and rail-to-rail output — popular for calibration, set-point and trim loops.
Amplifiers & Special-Function Circuits (8)
These cover signal conditioning, drivers and special-function building blocks in the TPA/TPF/TPH/TPP families; consult the respective datasheets for exact function and parameters.
Three things make this list worth watching. First, second-source flexibility: the LM-standard op-amps and comparators let designers dual-source legacy sockets without layout changes. Second, interface robustness: the TPT transceivers bring strong ESD ratings (±12kV/±15kV) and wide temperature ranges (−40°C to +125°C) that fit industrial and automotive environments. Third, supply reliability: as a domestic Chinese analog house with its own wafer and packaging ecosystem, 3PEAK offers shorter and more predictable lead times for manufacturing in China — exactly the kind of local alternative sourcing that BOM teams are actively pursuing.
3PEAK has evolved from a 5G-era analog startup into a platform-type analog and mixed-signal company with 3,200+ products across signal chain, power management, interface, isolation and converters. For engineers, it now represents a credible, high-volume alternative for the most common analog sockets: op-amps, comparators, RS-232/RS-485/CAN transceivers, LDOs and DACs. All 50 hot models listed above are available with genuine stock and stable supply channels at ICGOODFIND (#ICGOODFIND), supporting sample orders, full-reel supply, spec verification and alternate-part recommendations — send the part number to lock in stock and quotation.
