Analog Devices MAX774EPA+ buck-boost controller, negative output configuration, 300kHz switching frequency, 3V to 16.5V supply, through-hole 8-PDIP package, -40°C to 85°C operating temperature.
| Parameter | Value |
|---|---|
| Output type | Transistor Driver |
| Mounting | Through Hole |
| Voltage - supply (Vcc (Vdd)) | 3V ~ 16.5V |
| Frequency - switching | 300kHz |
| I/O channels | 1 |
| Output phases | 1 |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tube |
| Function | Step-Up/Step-Down |
| Topology | Buck-Boost |
| Clock sync | No |
| Case | 8-DIP (0.300\", 7.62mm) |
| Control features | Enable |
| Output configuration | Negative |
| Synchronous rectifier | No |
The 300kHz switching frequency is fixed — no external sync or frequency adjust pin. That simplifies the BOM (no timing resistor or capacitor), but it also fixes the inductor value and output capacitor ESR target.
Listed as active with no last-time-buy notice. ROHS3 compliant. The 8-PDIP package is a mature, widely stocked form factor — no package-end-of-life concerns typical of some older DIP parts.
Yes. The MAX774EPA+ is specifically configured for negative output generation. The output configuration is negative, and the topology is buck-boost. It drives an external transistor (P-channel MOSFET or PNP) to regulate a negative voltage from a positive input rail.
Within the same controller family, the MAX774 and MAX775 share the same basic function and pinout for negative buck-boost and positive boost, respectively. The MAX774EPA+ is the negative-output variant in the 8-PDIP package. No direct pin-compatible second source from another manufacturer is listed in the available records.