UA78S40PC Universal Switching Regulator 40V 1.5A DIP-16
The UA78S40PC is a universal switching regulator IC designed as a compact power-control core for a wide range of DC power designs. Its internal control circuitry is built to manage energy conversion efficiently while minimizing external component count, enabling designers to focus on topology and filtering rather than low-level regulator loop design. The device’s architecture is intended to be adaptable to several converter arrangements so it can be dropped into multiple roles within a power subsystem.
Mechanically packaged in a through-hole DIP-16 footprint, the UA78S40PC simplifies prototype and small-volume assembly while still fitting standard sockets and PCB layouts. The regulator emphasizes predictable behavior under varying loads and varying input conditions, making it suitable where consistent output regulation is required alongside straightforward thermal and PCB implementation.
The device is presented in the datasheet with implementation guidance and typical application wiring so engineers can evaluate stability and layout tradeoffs quickly. The UA78S40PC is positioned as a versatile building block for designers who need a reliable, compact switching regulator core that integrates key control functions into a single IC package.
Features:
- Universal switching-regulator control core adaptable to multiple converter topologies.
- Integrated regulation and control loops to minimize external compensation.
- On-chip protection and control functions to improve robustness under transient conditions.
- Standard DIP-16 package for easy prototyping and socket compatibility.
- Low external component count recommended by reference application circuits.
- Designed for straightforward PCB layout and predictable thermal behavior.
Specifications
| Product Category: | Switching Voltage Regulators |
| Topology: | Boost, Buck, Inverting |
| Output Current: | 1.5 A |
| Input Voltage, Min: | 2.5 V |
| Minimum Operating Temperature: | 0°C |
| Load Regulation, Max: | 0.5 mV/mA |
| Subcategory: | PMIC – Power Management ICs |
| Mounting Style: | Through Hole |
| Output Voltage: | 1.25 V to 40 V |
| Number of Outputs: | 1 Output |
| Input Voltage, Max: | 40 V |
| Maximum Operating Temperature: | + 70°C |
| Package/Case: | PDIP-16 |
Pin Configuration:
Applications:
- Step-up (Boost) switching regulator circuits.
- Step-down (Buck) switching regulator circuits.
- Inverting (Buck-Boost) switching regulator circuits.
- Efficient power management in battery-operated electronic systems.
- High-voltage, high-current regulation using external power transistors.
- Power conditioning where low standby current and high efficiency are required.
Package Include:
- 1x UA78S40PC Universal Switching Regulator 40V 1.5A DIP-16


